ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
Language
Number of Hits per Page
Default Sort Criterion
Default Sort Ordering
Size of Search History
Default Email Address
Default Export Format
Default Export Encoding
Facet list arrangement
Maximum number of values per filter
Auto Completion
Topics (search only within journals and journal articles that belong to one or more of the selected topics)
Show more topics
Feed Format
Maximum Number of Items per Feed
Permalink If you want to be able to use settings permanently, you must save your settings and then set a Bookmark to the permalink
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
Collection
Keywords
Publisher
Language
Years
  • 1
    facet.materialart.
    Unknown
    (Table 1) Individual codes, haplotype codes, GenBank accession numbers for DNA sequences and sample locality of the analysed Betamorpha fusiformis specimens from the ANDEEP III expedition (2007)
    PANGAEA
    In:  Supplement to: Raupach, Michael R; Malyutina, Marina; Brandt, Angelika; Wägele, Johann-Wolfgang (2007): Molecular data reveal a highly diverse species flock within the munnopsoid deep-sea isopod Betamorpha fusiformis (Barnard, 1920) (Crustacea: Isopoda: Asellota) in the Southern Ocean. Deep Sea Research Part II: Topical Studies in Oceanography, 54(16-17), 1820-1830, https://doi.org/10.1016/j.dsr2.2007.07.009
    Details
    Publication Date: 2024-06-02
    Description: Based on our current knowledge about population genetics, phylogeography and speciation, we begin to understand that the deep sea harbours more species than suggested in the past. Deep-sea soft-sediment environment in particular hosts a diverse and highly endemic invertebrate fauna. Very little is known about evolutionary processes that generate this remarkable species richness, the genetic variability and spatial distribution of deep-sea animals. In this study, phylogeographic patterns and the genetic variability among eight populations of the abundant and widespread deep-sea isopod morphospecies Betamorpha fusiformis [Barnard, K.H., 1920. Contributions to the crustacean fauna of South Africa. 6. Further additions to the list of marine isopods. Annals of the South African Museum 17, 319-438] were examined. A fragment of the mitochondrial 16S rRNA gene of 50 specimens and the complete nuclear 18S rRNA gene of 7 specimens were sequenced. The molecular data reveal high levels of genetic variability of both genes between populations, giving evidence for distinct monophyletic groups of haplotypes with average p-distances ranging from 0.0470 to 0.1440 (d-distances: 0.0592-0.2850) of the 16S rDNA, and 18S rDNA p-distances ranging between 0.0032 and 0.0174 (d-distances: 0.0033-0.0195). Intermediate values are absent. Our results show that widely distributed benthic deep-sea organisms of a homogeneous phenotype can be differentiated into genetically highly divergent populations. Sympatry of some genotypes indicates the existence of cryptic speciation. Flocks of closely related but genetically distinct species probably exist in other widespread benthic deep-sea asellotes and other Peracarida. Based on existing data we hypothesize that many widespread morphospecies are complexes of cryptic biological species (patchwork hypothesis).
    Keywords: Agassiz Trawl; AGT; ANT-XXII/3; Area/locality; Database accession number; Date/Time of event; EBS; Elevation of event; Elevation of event 2; Epibenthic sledge; Event label; Haplotype group; Individual code; Latitude of event; Latitude of event 2; Longitude of event; Longitude of event 2; Polarstern; PS67/016-10; PS67/021-7; PS67/074-6; PS67/080-9; PS67/094-11; PS67/102-13; PS67/110-8; PS67/121-10; PS67 ANDEEP 3; Uniform resource locator/link to file
    Type: Dataset
    Format: text/tab-separated-values, 264 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    Continuous optical chlorophyll-a and turbidity data along RV SONNE cruise SO289 (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-02
    Description: Underway optical chlorophyll-a and turbidity data were collected along the cruise track with Sea-Bird Scientific ECO FLNTU sensors installed within two autonomous measurement systems, called self-cleaning monitoring boxes (SMBs). The SMBs measure alternatingly. While one box is measuring, the other one is being cleaned. At the beginning of the transect, the boxes switched to operation every three hours, later, while the ship is transecting the Pacific Gyre, the cleaning interval was changed to only every 24 hours. The water inlet for the SMBs is at about 4 m depth. The data were quality controlled and the chlorophyll-a data were additionally calibrated using discrete water samples. In situ chlorophyll-a samples were collected by the scientific party from Niskin bottles during CTD stations and underway using a tow fish. Chlorophyll-a of these samples was determined in the lab on board using a bench top fluorometer. Details on all quality control steps, the calibration, as well as a comparison to satellite data can be found in the data processing report. The resulting data set contains the original data and corresponding quality flags and, in case of chlorophyll-a, additionally the calibrated data plus quality flag. The data source is given through the name of the active SMB. The data set contains data during transect and station. We recommend to use ship's speed to filter for only transect data.
    Keywords: Chlorophyll a; chlorophyll-a; DAM; DAM_Underway; DAM Underway Research Data; Data quality control procedures according to Copernicus Marine in situ TAC BGC quality control group (2021); DATE/TIME; DEPTH, water; EPA 445; Fluorescence; Fluorometer, Sea-Bird Scientific, ECO FLNTU; Fluorometer, Sea-Bird Scientific, ECO FLNTU; Calibration with samples measured according to Arar and Collins (1997); GEOTRACES GP21; ICBM; LATITUDE; LONGITUDE; Measurement container; Quality flag, chlorophyll a; Quality flag, turbidity; Ship speed; SO289; SO289_0_Underway-7; Sonne_2; turbidity; Turbidity (Nephelometric turbidity unit); Underway Measurement
    Type: Dataset
    Format: text/tab-separated-values, 470752 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 3
    facet.materialart.
    Unknown
    Solid-phase Mn speciation in suspended particles along meltwater-influenced fjords of West Greenland (2022)
    Elsevier
    Details
    Publication Date: 2024-06-02
    Description: Manganese (Mn) is an essential micro-nutrient that can limit or, along with iron (Fe), co-limit phytoplankton growth in the ocean. Glacier meltwater is thought to be a key source of trace metals to high latitude coastal systems, but little is known about the nature of Mn delivered to glacially-influenced fjords and adjacent coastal waters. In this work, we combine in-situ dissolved Mn (dMn) measurements of surface waters with Mn K-edge X-ray absorption spectroscopy (XAS) data of suspended particles in four fjords of West Greenland. Data were collected from transects of up to 100 km in fjords with different underlying bedrock geology from 64 to 70°N. We found that dMn concentrations generally decreased conservatively with increasing salinity (from 80-120 nM at salinity 〈8 to 〈40 nM at salinities 〉25). Dissolved Fe (dFe) trends in these fjords similarly declined with increasing distance from glacier outflows (declining from 〉20 nM to 〈8 nM). However, the dMn/dFe ratio increased rapidly likely due to the greater stability of dMn at intermediate salinities (i.e. 10 – 20) compared to rapid precipitation of dFe across the salinity gradient. The XAS data indicated a widespread presence of Mn(II)-rich suspended particles near fjord surfaces, with structures akin to Mn(II)-bearing phyllosilicates. However, a distinct increase in Mn oxidation state with depth and the predominance of birnessite-like Mn(IV) oxides was observed for suspended particles in a fjord with tertiary basalt geology. The similar dMn behaviour in fjords with different suspended particle Mn speciation (i.e., Mn(II)-bearing phyllosilicates and Mn(IV)-rich birnessite) is consistent with the decoupling of dissolved and particulate Mn and suggests that dMn concentrations on the scale of these fjords are controlled primarily by dilution of a freshwater dMn source rather than exchange between dissolved and particle phases. This work provides new insights into the Mn cycle in high latitude coastal waters, where small changes in the relative availabilities of dMn, dFe and macronutrients may affect the identity of the nutrient(s) proximally limiting primary production.
    Type: Article , PeerReviewed
    Format: text
    Format: text
    Format: text
    Format: other
    Format: other
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OCEANREP)
  • 4
    facet.materialart.
    Unknown
    The functional diversity of fishes in a Neotropical reservoir based on intraspecific trait variability: trends on community assembly rules and biological invasions. (2024)
    Universidade Estadual de Maringá. Departamento de Biologia. Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais.
    Details
    Publication Date: 2024-06-01
    Description: An essential question in ecology relies on whether to analyze functional diversity through species traits or to explore the traits' variability at the individual level. Traditionally, several studies have been based on unique values to represent species traits, assuming that intraspecific trait variation (ITV) has minimal impact on overall community trait variability. However, ITV can significantly influence assessments of individual and species adaptation to environmental disturbances, providing insights concerning density patterns, speciation, dispersal, and biological interactions. Thus, the importance of ITV was assessed from two perspectives: (i) community assembly rules and (ii) biological invasions. A dataset comprising ten morphological traits related to habitat use and diet of 5226 fishes belonging to 49 species that occupy the marginal areas of the Itaipu Reservoir (Brazil) was used as a case study. First, the relative contributions of ITV and species turnover (interspecific variability) to overall trait variability and the strength of internal and external filters on fish assemblages using individual traits were investigated. Species turnover accounted for most trait variance within assemblages, but ITV also played an important role for specific traits. Internal filters such as competition highly influence the functional diversity of fish species in an old reservoir. Alternatively, external filters (i.e., regional processes) did not present significant effects on functional traits, which may be related to their greater influence during the reservoir's filling phase. The difference between the functional niche occupied by native species and non-native ones, and the impact of non-native species dominance on the functional diversity patterns of native assemblages (indexed by functional richness, functional evenness, functional divergence, and functional redundancy) was also investigated. It was observed that the functional niche occupied by native species differs from non-native species, suggesting that non-native species have traits that enable them to exploit resources differently. Non-native species presented negative effects on the functional attributes of native fish populations, even in highly impacted environments such as reservoirs, reinforcing the importance of understanding the dynamics between native and non-native species in specific ecosystems. It is expected that the results of this study will assist in the development of public policies in the area of reservoir conservation, offering new insights into critical mechanisms associated with the biodiversity of the marginal regions of reservoirs that are exploited by human activities.
    Description: Uma questão fundamental na ecologia consiste na escolha entre analisar a diversidade funcional por meio de traços a nível de espécie ou explorar a variabilidade dentro de cada espécie, a nível de indivíduo. Tradicionalmente, a maioria dos estudos têm se baseado em valores únicos para representar os traços das espécies, assumindo que a variabilidade intraespecífica dos traços (VIT) tem um impacto mínimo na variabilidade geral dos traços em uma comunidade. No entanto, a VIT pode influenciar significativamente a adaptação das espécies a perturbações ambientais, fornecendo insights sobre padrões de densidade, especiação, dispersão e interações biológicas. Assim, a importância da VIT foi avaliada a partir de duas perspectivas: (i) regras de montagem de comunidades e (ii) invasões biológicas, utilizando como estudo de caso um conjunto de dados composto por 10 traços morfológicos relacionados ao uso de habitat e dieta de 5226 peixes pertencentes a 49 espécies que ocupam as margens do reservatório de Itaipu. Primeiro, investigou-se a contribuição relativa da VIT versus turnover de espécies (variabilidade interespecífica) para a variabilidade geral dos traços, e também quais filtros atuam sobre as assembleias de peixes utilizando dados a nível de indivíduo. O turnover de espécies representou a maior parte da variância dos traços dentro das assembleias, mas a VIT também exerceu um papel significativo, especialmente para alguns traços. Observou-se que os filtros internos, como a competição, parecem atuar sobre a diversidade funcional das espécies de peixes em um reservatório antigo. Filtros externos (ou seja, processos regionais) não apresentaram efeitos significativos, o que pode ser atribuído à sua provável maior influência durante a fase de formação do reservatório, onde mudanças ambientais ocorreram de forma mais frequente. Investigou-se também a diferença entre o nicho funcional ocupado por espécies nativas e não nativas, e o impacto da dominância de espécies não nativas sobre a riqueza, equitabilidade, divergência e redundância funcional das assembleias de peixes nativas. Observou-se que nicho funcional ocupado por espécies nativas difere das espécies não nativas, sugerindo que as espécies não nativas possuem traços que lhes permitem explorar recursos de maneira diferente. Também se demonstrou que espécies não nativas exerceram efeitos negativos nos atributos funcionais das populações de peixes nativos, mesmo em ambientes altamente impactados como os reservatórios, destacando a importância de compreender a dinâmica entre espécies nativas e não nativas dentro de ecossistemas específicos. Espera-se que os resultados deste estudo auxiliem na elaboração de políticas públicas na área da conservação de reservatórios, oferecendo novos insights sobre mecanismos críticos associados à biodiversidade das áreas marginais de reservatórios que são exploradas por atividades humanas.
    Description: PhD
    Keywords: Peixes de água doce ; Comunidades, Ecologia de ; Invasões biológicas ; Diversidade funcional ; Ecomorfologia ; Variabilidade intraespecífica dos traços (VIT) ; Reservatórios ; ASFA_2015::F::Freshwater fish ; ASFA_2015::F::Freshwater ecology ; ASFA_2015::C::Communities (ecological) ; ASFA_2015::D::Dams ; ASFA_2015::B::Biodiversity ; ASFA_2015::D
    Repository Name: AquaDocs
    Type: Thesis/Dissertation
    Format: 77pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 5
    facet.materialart.
    Unknown
    State of the Ocean Report 2024. (2024)
    UNESCO-IOC | Paris, France
    Details
    Publication Date: 2024-06-01
    Description: The State of the Ocean Report (StOR) has the ambition to inform policymakers about the state of the ocean and to stimulate research and policy actions towards ‘the ocean we need for the future we want’, contributing to the 2030 Agenda and in particular SDG 14, which reads ‘Conserve and sustainably use the oceans, seas and marine resources’, as well as other global processes such as the UNFCCC, the Convention on Biological Diversity and the Sendai Framework for Disaster Risk Reduction. Structured around the seven UN Decade of Ocean Science for Sustainable Development Outcomes, the Report provides important information about the achievements of the UN Ocean Decade and, in the longer term, about ocean well-being. The StOR will be used to inform policy and administrative priorities and identify research focus areas that need to be strengthened or developed.
    Description: Published
    Description: Refereed
    Keywords: Plastic pollution ; Ecosystem restoration ; Deoxygenation ; Blue carbon ecosystems ; Marine spatial planning (MSP) ; Sustainable production ; Sustainable food prduction ; Carbon dioxide ; Harmful algal blooms ; Global Ocean Observing System ; Data sharing ; ASFA_2015::P::Plastics ; ASFA_2015::A::Acidification ; ASFA_2015::G::Global warming ; ASFA_2015::C::Carbon
    Repository Name: AquaDocs
    Type: Report
    Format: 92pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 6
    facet.materialart.
    Unknown
    Assessing climatic impact on transition from Neanderthal to anatomically modern human population on Iberian Peninsula: a macroscopic perspective (2023)
    SCIENCE CHINA PRESS
    In:  EPIC3Chinese Science Bulletin, SCIENCE CHINA PRESS, ISSN: 1001-6538
    Details
    Publication Date: 2024-06-01
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 7
    facet.materialart.
    Unknown
    Seeing the Forest for the Trees: Mapping Cover and Counting Trees from Aerial Images of a Mangrove Forest Using Artificial Intelligence (2023)
    MDPI AG
    In:  Remote Sensing vol. 15 no. 3334
    Details
    Publication Date: 2024-06-01
    Description: Mangrove forests provide valuable ecosystem services to coastal communities across tropical and subtropical regions. Current anthropogenic stressors threaten these ecosystems and urge researchers to create improved monitoring methods for better environmental management. Recent efforts that have focused on automatically quantifying the above-ground biomass using image analysis have found some success on high resolution imagery of mangrove forests that have sparse vegetation. In this study, we focus on stands of mangrove forests with dense vegetation consisting of the endemic Pelliciera rhizophorae and the more widespread Rhizophora mangle mangrove species located in the remote Utría National Park in the Colombian Pacific coast. Our developed workflow used consumer-grade Unoccupied Aerial System (UAS) imagery of the mangrove forests, from which large orthophoto mosaics and digital surface models are built. We apply convolutional neural networks (CNNs) for instance segmentation to accurately delineate (33% instance average precision) individual tree canopies for the Pelliciera rhizophorae species. We also apply CNNs for semantic segmentation to accurately identify (97% precision and 87% recall) the area coverage of the Rhizophora mangle mangrove tree species as well as the area coverage of surrounding mud and water land-cover classes. We provide a novel algorithm for merging predicted instance segmentation tiles of trees to recover tree shapes and sizes in overlapping border regions of tiles. Using the automatically segmented ground areas we interpolate their height from the digital surface model to generate a digital elevation model, significantly reducing the effort for ground pixel selection. Finally, we calculate a canopy height model from the digital surface and elevation models and combine it with the inventory of Pelliciera rhizophorae trees to derive the height of each individual mangrove tree. The resulting inventory of a mangrove forest, with individual P. rhizophorae tree height information, as well as crown shape and size descriptions, enables the use of allometric equations to calculate important monitoring metrics, such as above-ground biomass and carbon stocks.
    Keywords: mangrove forests ; forest inventory ; monitoring ; habitat mapping ; UAV ; UAS ; artificial ; intelligence ; machine learning ; instance segmentation ; semantic segmentation ; above ground biomass ; carbon stock
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 8
    facet.materialart.
    Unknown
    Digitizing the coral reef: Machine learning of underwater spectral images enables dense taxonomic mapping of benthic habitats (2022)
    In:  Methods in Ecology and Evolution vol. 14 no. 2, pp. 596-613
    Details
    Publication Date: 2024-06-01
    Description: Coral reefs are the most biodiverse marine ecosystems, and host a wide range of taxonomic diversity in a complex spatial community structure. Existing coral reef survey methods struggle to accurately capture the taxonomic detail within the complex spatial structure of benthic communities. We propose a workflow to leverage underwater hyperspectral image transects and two machine learning algorithms to produce dense habitat maps of 1150 m2 of reefs across the Curaçao coastline. Our multi-method workflow labelled all 500+ million pixels with one of 43 classes at taxonomic family, genus or species level for corals, algae, sponges, or to substrate labels such as sediment, turf algae and cyanobacterial mats. With low annotation effort (only 2% of pixels) and no external data, our workflow enables accurate (Fbeta of 87%) survey-scale mapping, with unprecedented thematic detail and with fine spatial resolution (2.5 cm/pixel). Our assessments of the composition and configuration of the benthic communities of 23 image transects showed high consistency. Digitizing the reef habitat and community structure enables validation and novel analysis of pattern and scale in coral reef ecology. Our dense habitat maps reveal the inadequacies of point sampling methods to accurately describe reef benthic communities.
    Keywords: coral reefs ; habitat mapping ; hyperspectral imaging ; machine learning ; survey scale mapping ; thematic detail
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 9
    facet.materialart.
    Unknown
    The Punta de la Mona Rhodolith Bed: Shallow-Water Mediterranean Rhodoliths (Almuñecar, Granada, Southern Spain) (2022)
    Frontiers Media SA
    In:  Frontiers in Earth Science vol. 10 no. 884685
    Details
    Publication Date: 2024-06-01
    Description: Shallow-water rhodolith beds are rare in the Mediterranean Sea and generally poorly known. The Punta de la Mona rhodolith bed extends for 16,000 square meters in shallow and oligotrophic waters at the southern coast of Spain, off Almuñecar in the Alborán Sea. We present a detailed analysis of the structure (rhodolith cover and density, rhodolith size and shape, sediment granulometry) and morphospecies composition of the bed along a depth gradient. A stratified sampling was carried out at six depths (9, 12, 15, 18, 21, and 24 m), estimating rhodolith cover and abundance; rhodoliths were collected from one 30 by 30 cm quadrat for each transect, resulting in 18 samples and a total of 656 rhodoliths. The collected rhodoliths were measured and the coralline algal components identified morphoanatomically through a stereomicroscope and SEM. Sediment on the seafloor mainly consisted of pebbles and cobbles; the highest rhodolith cover occurred between 15 and 18 m, and the lowest at the shallowest and deepest transects (9 and 24 m). Mean Rhodolith size was similar throughout the depth range (23–35 mm) with a slight increase at 24 m, although the largest rhodoliths occurred at 21 m. In monospecific rhodoliths, size depended more on the forming species than on depth. We found 25 non-geniculate coralline morphospecies, nearly all rhodolith-forming morphospecies reported in the Mediterranean Sea in recent accounts. The highest morphospecies richness (18–19) and proportional abundance were found at intermediate depths (15–18 m), where rhodolith cover is also highest. Lithophyllum incrustans and Lithophyllum dentatum dominated at shallow depths (9–12 m), whereas Lithothamnion valens was the dominant species at intermediate and greater depths. Overall, the latter species was the most common in the rhodolith bed. The shallow-water rhodolith bed in Punta de la Mona is probably the most diverse in the Mediterranean Sea. This highlights the importance of the conservation of this habitat and, in general, emphasizes the role of the Alborán Sea as a diversity center of coralline algae. The Punta de la Mona example contradicts the common assumption in the geological literature that rhodolith beds are indicative of oligophotic environments with high nutrients levels.
    Keywords: coralline red algae ; depth-gradient patterns ; rhodolith cover and size ; rhodolith diversity ; Alboran sea
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 10
    facet.materialart.
    Unknown
    3D multichannel seismic reflection processed data (P-Cable system with GI Gun) of RV POSEIDON during cruise POS515, Calabrian Arc, Mediterranean Sea (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: The data are a processed and interpolated P-Cable 3D seismic data cube. The data were collected during expedition POS515 with the research vessel POSEIDON (Riedel et al., 2017) in the Mediterranean Sea, Calabrian Arc offshore southern Italy (map under further details). Seismic source was a Generator-Injector airgun fired in harmonic GI mode with generator and injector volume of 105 cubic inches. The source was towed at a nominal depth of 2 m beneath the sea surface. We deployed a P-Cable system made from 12 parallel streamers (each 12. 5 m in length). Details on the towed geometry are given in Figure 30 of the cruise report (Riedel et al., 2017). The P-Cable data were acquired over the course of 6 days during POS515 starting from 13:45 on July 5, 2017 until 12:06 on July11, 2017 (all CET). Processing included: 3D geometry application, trace editing, static time corrections, band-pass filtering, sorting to common midpoint gathers, normal moveout correction (1520 m/s velocity ), and stacking. The stacked 3D cube was then interpolated to fill any empty bins. Afterwards, Stolt time migration (1550 m/s) was performed, first inline, then crossline direction. The dataset has a horizontal resolution of 3.125 m (bin size) and a dominant frequency of ~100 Hz.
    Keywords: 3D seismic P-Cable data; Binary Object; Binary Object (File Size); Binary Object (MD5 Hash); Binary Object (Media Type); CALVADOS; File content; P-Cable; P-Cable 3D Seismic; P-Cable 3D seismic cube; POS515; POS515_59-2; Poseidon; Sartori mud volcano
    Type: Dataset
    Format: text/tab-separated-values, 2 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 11
    facet.materialart.
    Unknown
    2D multichannel seismic reflection processed data (GI Gun working area dataset) of RV POSEIDON during cruise POS515, Poseidon mud volcano chain, Calabrian Arc, Mediterranean Sea (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: The data set contains 13 2D multichannel seismic lines acquired across Poseidon mud volcano chain, Caalbrian Arc, offshore southern Italy. Data were processed onboard during expedition POS515 with R/V POSEIDON. These lines were also recorded on 12 OBS. Details see cruise report (Riedel et al., 2017). Main processing steps include: Geometry definition, Common-Mid-(CMP) Point sorting (1.5625 m bin-space), Normal-Moveout-Corrention (NMO) using a constant velocity of 1500 m/s and Stacking Stolt-Migration (in time) with constant velocity of 1500 m/s. Data processing was completed onboard using the SU processing package. Seismic Surveying at Poseidon mudvlcano started with line P4001 on July 3, 2017 (08:22 am, CET) at 17°40.12'E, 38°21.58N. The last line acquired in this sequence is line P6010. Surveying ended on July 5, 2017 at 04:00 am (CET) at 17°43.12'E, 38°18.96'N.
    Keywords: Binary Object; Binary Object (File Size); Binary Object (MD5 Hash); Binary Object (Media Type); Calabrian accretionary prism; CALVADOS; File content; Mediterranean Sea, Eastern Basin; multichannel reflection seismics; POS515; POS515_45-1; POS515_46-1; Poseidon; SEIS; Seismic; Seismic reflection profile; SEISREFL
    Type: Dataset
    Format: text/tab-separated-values, 26 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 12
    facet.materialart.
    Unknown
    Loss on ignition, water content, and pH measurements in surface sediments (2022) within DynaCom experimental islands and saltmarsh enclosed plots at different elevation levels, Spiekeroog, Germany (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: Data presented here were collected between January 2022 to November 2022 within the research unit DynaCom (Spatial community ecology in highly dynamic landscapes: From island biogeography to metaecosystems) of the Universities of Oldenburg, Göttingen, and Münster, the iDiv Leipzig and the Nationalpark Niedersächsisches Wattenmeer. Experimental islands and saltmarsh enclosed plots were created in the back barrier tidal flat and in the saltmarsh zone of the island of Spiekeroog. Sediment samples for the determination of pH, water content and loss on ignition were taken bi-/monthly in surface sediments (0-3 cm depth) from the experimental plots. Samples were stored dark and cool (8°C) until measurement. Samples were measured in the laboratory within two months after sampling. Water content (w, [-]) was determined by first weighing the fresh sample (mf; ~ 3-7 g) in pre-weighed aluminium trays and than placed in the drying chamber at 105 °C for 12 hours. After placing samples in the exsiccator for 60 min., samples were re-weight to determine dry weight (md). Water content was calculated using w = (mf - md) / md . Afterwards, samples were placed in the muffle furnace for 2 hours at 430 °C within their aluminium trays, and placed again in the exsiccator for 60 min. Samples were re-weighed to determine the new dry weight (mgl) to calculate loss on ignition (LOI, [%]) using LOI = ((md – mgl) / md ) * 100 . Values of pH were measured according to DIN ISO 10390. Therefore, soil samples were weighed in pre-weighed Falcon™ 50 mL conical centrifuge tubes. Sediment samples were homogenized using a pestle. Ultrapure water was used to measure pH directly within the tubes using a HQ40D digital two channel multi meter and an Intellical PHC101 field low maintenance gel filled pH electrode (Hach Lange GmbH, Germany). The pH electrode was calibrated before measurement using singlet pH buffer sets (pH 4.01, 7.00, 10.01) for single use (Hach Lange GmbH, Germany). Post-processing of measured values were done using MATLAB (R2018a). Quality control was performed by (a) visually checks, and hence (b) the classification into quality control flags using quality check algorithms.
    Keywords: BEFmate; BEFmate_C1low; BEFmate_C1pio; BEFmate_C1upp; BEFmate_C2low; BEFmate_C2pio; BEFmate_C2upp; BEFmate_C3low; BEFmate_C3pio; BEFmate_C3upp; BEFmate_C4low; BEFmate_C4pio; BEFmate_C4upp; BEFmate_C5low; BEFmate_C5pio; BEFmate_C5upp; BEFmate_C6low; BEFmate_C6pio; BEFmate_C6upp; BEFmate_I10low; BEFmate_I10pio; BEFmate_I10upp; BEFmate_I11low; BEFmate_I11pio; BEFmate_I11upp; BEFmate_I12low; BEFmate_I12pio; BEFmate_I12upp; BEFmate_I1low; BEFmate_I1pio; BEFmate_I1upp; BEFmate_I2low; BEFmate_I2pio; BEFmate_I2upp; BEFmate_I3low; BEFmate_I3pio; BEFmate_I3upp; BEFmate_I4low; BEFmate_I4pio; BEFmate_I4upp; BEFmate_I5low; BEFmate_I5pio; BEFmate_I5upp; BEFmate_I6low; BEFmate_I6pio; BEFmate_I6upp; BEFmate_I7low; BEFmate_I7pio; BEFmate_I7upp; BEFmate_I8low; BEFmate_I8pio; BEFmate_I8upp; BEFmate_I9low; BEFmate_I9pio; BEFmate_I9upp; BEFmate_S10low; BEFmate_S10pio; BEFmate_S10upp; BEFmate_S11low; BEFmate_S11pio; BEFmate_S11upp; BEFmate_S12low; BEFmate_S12pio; BEFmate_S12upp; BEFmate_S1low; BEFmate_S1pio; BEFmate_S1upp; BEFmate_S2low; BEFmate_S2pio; BEFmate_S2upp; BEFmate_S3low; BEFmate_S3pio; BEFmate_S3upp; BEFmate_S4low; BEFmate_S4pio; BEFmate_S4upp; BEFmate_S5low; BEFmate_S5pio; BEFmate_S5upp; BEFmate_S6low; BEFmate_S6pio; BEFmate_S6upp; BEFmate_S7low; BEFmate_S7pio; BEFmate_S7upp; BEFmate_S8low; BEFmate_S8pio; BEFmate_S8upp; BEFmate_S9low; BEFmate_S9pio; BEFmate_S9upp; BEFmate_Watt; biodiversity - ecosystem functioning; Calculated; DATE/TIME; DEPTH, sediment/rock; Depth, sediment/rock, bottom/maximum; Depth, sediment/rock, top/minimum; DynaCom; ELEVATION; Event label; experimental islands; FOR 2716: Spatial community ecology in highly dynamic landscapes: from island biogeography to metaecosystems; LATITUDE; LONGITUDE; loss on ignition; Loss on ignition; Metacommunity; MULT; Multiple investigations; off Spiekeroog, German Bight, North Sea; pH; Plot; Portable 2-channel multimeter, Hach, HQ40D; Quality flag, loss on ignition; Quality flag, pH; Quality flag, water content; salt marsh; Sample ID; Sampling date; SCO; Spiekeroog; Spiekeroog Coastal Observatory; water content; Water content, relative
    Type: Dataset
    Format: text/tab-separated-values, 11310 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 13
    facet.materialart.
    Unknown
    (Table S2) Model ages determined with the 'coral isochron' and the 'discordia' approach (2018)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: Age, dated; Age, error; Aqaba96_00; AQB-1A; AQB-1H; AQB-1K; AQB-3A; AQB-7G; Center for Marine Environmental Sciences; DRILL; Drilling/drill rig; Event label; MARUM; Northern Gulf of Aqaba (Aqaba/Jordan, Red Sea); Sampling/drilling corals
    Type: Dataset
    Format: text/tab-separated-values, 57 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 14
    facet.materialart.
    Unknown
    Pb isotopic compositions database for South America, Patagonia, Asia, North Afria, Sahara, and Australia (2014)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: Area/locality; DEPTH, sediment/rock; LATITUDE; Latitude 2; Lead-206/Lead-204 ratio; Lead-207/Lead-204 ratio; Lead-208/Lead-204 ratio; LONGITUDE; Longitude 2; Reference/source; Sample code/label
    Type: Dataset
    Format: text/tab-separated-values, 9802 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 15
    facet.materialart.
    Unknown
    Stable isotope and trace element data covering 46.2-15.5 ka BP from stalagmite PR-LA-1 (Cueva Larga, Puerto Rico) (2020)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: AGE; Aluminium/Calcium ratio; Barium/Calcium ratio; Cueva Larga, Puerto Rico; DISTANCE; Isotope ratio mass spectrometer (IRMS) with a GasBench; LA-ICP-MS, Laser-ablation inductively coupled plasma mass spectrometer; Magnesium/Calcium ratio; Phosphorus/Calcium ratio; PR-LA-1; Sample ID; speleothem; Speleothem sample; SPS; Stable isotopes; Strontium/Calcium ratio; Thorium/Calcium ratio; trace elements; Uranium/Calcium ratio; δ13C, carbonate; δ18O, carbonate
    Type: Dataset
    Format: text/tab-separated-values, 20317 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 16
    facet.materialart.
    Unknown
    Bulk total organic carbon content and its isotope composition and biomarker data of sediment core YC22_MR_7 off Herschel island (Yukon Coast 2022) (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: In July 2022 within the framework of an Alfred-Wegener-Institute-managed expedition and the Nunataryuk project, sediment core YC22_MR_7 was taken off the coast of Herschel Island, Canada, using a hand corer. Data sets were obtained to investigate carbon feedback from the sediments to the water column and atmosphere, using DIC concentrations and isotopic values. The local sediments are supplied primarily by organic carbon previously stored in adjacent permafrost soils (biomarker and bulk data), which erode and redeposit quickly (age model) on the ocean floor. The acquired data includes: 1) Sediment data: Bulk total organic carbon content (Lamping et al., 2021) and its isotopic values for 13C (Brodie et al., 2011; Werner & Brand, 2001) and 14C (Mollenhauer et al., 2021). 2) Biomarker data: Quantifying alkanes (CPI) , and fatty acids (TAR ratio) as described by Wei et al. (2020), Glycerol dialkyl glycerol tetraethers (GDGTs basis for BIT-Index) after Hopmans et al. (2016), Hopanes (fßß) following instructions by Meyer et al., (2019), and Sterols (Dinosterol) after Dauner et al. (2022).
    Keywords: 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, standard deviation; AWI Arctic Land Expedition; Branched and isoprenoid tetraether index; Branched and isoprenoid tetraether index, standard deviation; C31 beta beta R homohopane relative to diagenetic isomers, fractional abundance; C31 beta beta R homohopane relative to diagenetic isomers, fractional abundance, standard deviation; CA-Land_2022_YukonCoast; CA-Land_2022_YukonCoast_MR_7; Carbon, organic, total; Carbon, organic, total, standard deviation; Carbon Preference Index; Carbon Preference Index, standard deviation; DEPTH, sediment/rock; Fraction modern carbon; Fraction modern carbon, standard deviation; Hand corer; HCOR; Herschel Island, Yukon Territory, Canada; NUNATARYUK; NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation; Sample ID; Terrigenous/aquatic ratio; Terrigenous/aquatic ratio, standard deviation; YC22_MR_7; Yukon Coast 2022; δ13C, total organic carbon; δ13C, total organic carbon, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 350 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 17
    facet.materialart.
    Unknown
    Radiogenic Sr, Nd and Pb isotope compositions and REE concentrations for North African soil samples from the literature (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: Area/locality; Atlantic dust transport; Cerium; Dysprosium; Erbium; Europium; Europium anomaly; Event label; From literature; Gadolinium; Holmium; isotope fingerprinting; Lanthanum; Latitude of event; Lead-206/Lead-204 ratio; Lead-206/Lead-204 ratio, standard error; Lead-207/Lead-204 ratio; Lead-207/Lead-204 ratio, standard error; Lead-208/Lead-204 ratio; Lead-208/Lead-204 ratio, standard error; Location; Longitude of event; Lutetium; mineral dust provenance; Neodymium; North African soils; Praseodymium; PSA_BD_34BOT25; PSA_BD_BEG1; PSA_BD_BEG2; PSA_BD_BEG3; PSA_BD_Bod_43.5; PSA_BD_Bod_44; PSA_BD_Bod_44B; PSA_BD_Bod_44C; PSA_BD_Bod_44D; PSA_BD_Bod_51; PSA_BD_Bod_54A; PSA_BD_BOD1; PSA_BD_Bod54B; PSA_BD_BODI; PSA_BD_BODU; PSA_BD_CH17; PSA_BD_CH34; PSA_BD_CH38; PSA_BD_CH39; PSA_BD_CH50; PSA_BD_CH56; PSA_BD_CH62; PSA_BD_CH75; PSA_BD_EN1; PSA_BD_EN12; PSA_BD_EN13; PSA_BD_EN14; PSA_BD_EN15; PSA_BD_EN2; PSA_BD_EN3; PSA_BD_EN4; PSA_BD_EN5; PSA_BD_EN6; PSA_BD_EN7; PSA_BD_EN8; PSA_BD_EN9; PSA_BD_Faya_Largeau_bulk; PSA_BD_Faya_Largeau_residue; PSA_BD_Harmattan_bulk; PSA_BD_Harmattan_residue; PSA_BD_M_bulk; PSA_BD_M_residue; PSA_BD_NPS_bulk; PSA_BD_NPS_residue; PSA_BD_R_bulk; PSA_BD_RIVER1; PSA_BD_RIVER2; PSA_LAM_Lybia; PSA_LAM_N05; PSA_LAM_N19; PSA_LAM_N26; PSA_LAM_N35; PSA_LAM_N36; PSA_LAM_Tunisia; PSA_LE_Assouan_bank; PSA_LE_Assouan_island; PSA_LE_EGP11A; PSA_LE_EGP12A; PSA_LE_EGP13A; PSA_LE_EGP14A; PSA_LE_EGP15A; PSA_LE_EGP16A; PSA_LE_EGP18A; PSA_LE_EGP20A; PSA_LE_EGP21A; PSA_LE_EGP27A; PSA_LE_EGP28A; PSA_LE_EGP29A; PSA_LE_EGP2A; PSA_LE_Egypt#1; PSA_LE_Egypt#2; PSA_LE_LIB1; PSA_LE_SD1; PSA_LE_SD10; PSA_LE_SD2; PSA_LE_SD3; PSA_LE_SD4; PSA_LE_SD6; PSA_LE_SD7; PSA_LE_SD8; PSA_LE_SD9; PSA_Ma_Atar; PSA_Ma_Elm; PSA_Ma_Erg; PSA_Ma_Est; PSA_Ma_Foum; PSA_Ma_Kay; PSA_Ma_Kif; PSA_Ma_Mauritania; PSA_Ma_Nou; PSA_Ma_Smara; PSA_Ma_Tamba; PSA_Ma_Tich; PSA_Ma_Wouerat; PSA_MC_AGF; PSA_MC_SAHEL10A; PSA_MC_SAHEL11A; PSA_MC_SAHEL12A; PSA_MC_SAHEL13A; PSA_MC_SAHEL14A; PSA_MC_SAHEL15A; PSA_MC_SAHEL17A; PSA_MC_SAHEL19A; PSA_MC_SAHEL1A; PSA_MC_SAHEL1A_1; PSA_MC_SAHEL1A_2; PSA_MC_SAHEL2A; PSA_MC_SAHEL3A; PSA_MC_SAHEL4A; PSA_MC_SAHEL6A; PSA_MC_SAHEL7A; PSA_MC_SAHEL8A; PSA_MC_SAHEL9A; PSA_Non_rep_LOME10A; PSA_Non_rep_LOME14A; PSA_Non_rep_LOME18A; PSA_Non_rep_LOME1A; PSA_Non_rep_LOME24A; PSA_Non_rep_LOME2A; PSA_Non_rep_LOME4A; PSA_Non_rep_LOME5A; PSA_Non_rep_LOME8A; PSA_WAC_Akjoujt; PSA_WAC_Elra; PSA_WAC_EM; PSA_WAC_Foun; PSA_WAC_IR; PSA_WAC_JB; PSA_WAC_Jraif; PSA_WAC_Lab; PSA_WAC_Mali_Kati; PSA_WAC_MHAMID18; PSA_WAC_MHAMID19; PSA_WAC_MORO10A; PSA_WAC_MORO14A; PSA_WAC_MORO15A; PSA_WAC_MORO16A; PSA_WAC_MORO18A; PSA_WAC_MORO1A; PSA_WAC_MORO20A; PSA_WAC_MORO21A; PSA_WAC_MORO22A; PSA_WAC_MORO23A; PSA_WAC_MORO25B; PSA_WAC_MORO26A; PSA_WAC_MORO27A; PSA_WAC_MORO28A; PSA_WAC_MORO29; PSA_WAC_MORO3A; PSA_WAC_MORO5A; PSA_WAC_MORO6A; PSA_WAC_MORO7A; PSA_WAC_MORO8A; PSA_WAC_Ouj; PSA_WAC_PNBA; PSA_WAC_Ro; PSA_WAC_Sen_Riv; PSA_WAC_Til; PSA_WAC_TL; PSA_WAC_ZAG1; PSA_WAC_ZAG2; rare-earth element pattern; Reference/source; Sahara-Sahel region; Samarium; Sample ID; Sample type; SOILS; Soil sample; Sr-Nd-Pb radiogenic isotopes; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, standard error; Terbium; Thulium; Ytterbium; ε-Neodymium; ε-Neodymium, standard error
    Type: Dataset
    Format: text/tab-separated-values, 1813 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 18
    facet.materialart.
    Unknown
    Tie points for manual alignment of the benthic foraminiferal δ¹⁸O record at ODP Sites 980/981 to LR04 (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: This dataset presents user-defined tiepoints of the manual alignment of the benthic foraminiferal δ¹⁸O record at ODP Site 980 and 981 to the benthic foraminiferal LR04 δ¹⁸O stack of Lisiecki and Raymo (2005) obtained by Middleton et al. (2024). The benthic foraminiferal δ¹⁸O record at ODP 980 is based on Cibicidoides wuellerstorfi and Cibicides kullenbergi, and was previously published (McManus et al., 1999; Flower et al., 2000; Oppo et al., 1998). The ODP Site 981 data were measured on benthic foraminifera of the genus Cibicidoides (Raymo et al., 2004). The benthic foraminiferal δ¹⁸O records of ODP Site 980 and 981 were spliced together at ~860 ka (Raymo et al., 2004).
    Keywords: 162-980; 162-981; AGE; COMPCORE; Composite Core; DEPTH, sediment/rock; Event label; Joides Resolution; Leg162; Ocean Drilling Program; ODP; South Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 0 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 19
    facet.materialart.
    Unknown
    Tie points for manual alignment of the benthic foraminiferal δ¹⁸O record at ODP Site 1090 to LR04 (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: This dataset presents user-defined tiepoints of the manual alignment of the benthic foraminiferal δ¹⁸O record at ODP Site 1090 to the benthic foraminiferal LR04 δ¹⁸O stack of Lisiecki and Raymo (2005) obtained by Middleton et al. (2024). The benthic foraminiferal δ¹⁸O record is based on Cibicidoides wuellerstorfi and was previously published in Hodell et al. (2000) and Venz and Hodell (2002).
    Keywords: 177-1090; AGE; COMPCORE; Composite Core; DEPTH, sediment/rock; Joides Resolution; Leg177; Ocean Drilling Program; ODP; South Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 0 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 20
    facet.materialart.
    Unknown
    Oxygen isotopes and Sr/Ca ratios of fossil corals from Bonaire (2017)
    PANGAEA
    In:  Supplement to: Wu, Henry C; Felis, Thomas; Scholz, Denis; Giry, Cyril; Kölling, Martin; Jochum, Klaus Peter; Scheffers, Sander R (2017): Changes to Yucatán Peninsula precipitation associated with salinity and temperature extremes of the Caribbean Sea during the Maya civilization collapse. Scientific Reports, 7, 15825, https://doi.org/10.1038/s41598-017-15942-0
    Details
    Publication Date: 2024-06-01
    Description: Explanations of the Classic Maya civilization demise on the Yucatán Peninsula during the Terminal Classic Period (TCP; ~CE 750-1050) are controversial. Multiyear droughts are one likely cause, but the role of the Caribbean Sea, the dominant moisture source for Mesoamerica, remains largely unknown. Here we present bimonthly-resolved snapshots of reconstructed sea surface temperature (SST) and salinity (SSS) variability in the southern Caribbean from precisely dated fossil corals. The results indicate pronounced interannual to decadal SST and SSS variability during the TCP, which may be temporally coherent to precipitation anomalies on the Yucatán. Our results are best explained by changed Caribbean SST gradients affecting the Caribbean low-level atmospheric jet with consequences for Mesoamerican precipitation, which are possibly linked to changes in Atlantic Meridional Overturning Circulation strength. Our findings provide a new perspective on the anomalous hydrological changes during the TCP that complement the oft-suggested southward displacement of the Intertropical Convergence Zone. We advocate for a strong role of Caribbean SST and SSS condition changes and related ocean-atmosphere interactions that notably influenced the propagation and transport of precipitation to the Yucatán Peninsula during the TCP.
    Keywords: Center for Marine Environmental Sciences; MARUM
    Type: Dataset
    Format: application/zip, 7 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 21
    facet.materialart.
    Unknown
    Trace elements, stable isotopes and rare earth elements in ostracod valves from sediment cores from Lake Nam Co and Tangra Yumco, Tibetan Plateau (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: High-resolution multi-proxy records from two lakes on the southern Tibetan Plateau, Nam Co and Tangra Yumco, are used to infer long-term variations in the Asian monsoon system. We examine the moisture evolution during the Late Glacial Maximum and Holocene using the trace element and stable isotope composition of ostracod shells. The sediment records covering the past 24 cal. ka BP and 18 cal. ka BP, respectively, demonstrate the suitability of ostracod shell chemistry as paleoenvironmental proxy. We analysed (i) Mg/Ca, Ba/Ca and Sr/Ca ratios as salinity proxies, (ii) Fe/Ca, Mn/Ca and U/Ca ratios representing redox conditions and microbial activity, and (iii) rare earth elements (REEs) reflecting weathering and changes in provenance.
    Keywords: Ostracoda; Paleoclimate; Paleolimnology; Rare earth elements; Stable carbon and oxygen isotopes; trace elements ratio
    Type: Dataset
    Format: application/zip, 4 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 22
    facet.materialart.
    Unknown
    Mass balance and acceleration of the Greenland ice sheet (2012)
    PANGAEA
    In:  Supplement to: Sasgen, Ingo; van den Broeke, Michiel R; Bamber, Jonathan L; Rignot, Eric; Sørensen, Louise Sandberg; Wouters, Bert; Martinec, Zdenek; Velicogna, Isabella; Simonsen, Sebastian B (2012): Timing and origin of recent regional ice-mass loss in Greenland. Earth and Planetary Science Letters, 333-334, 293-303, https://doi.org/10.1016/j.epsl.2012.03.033
    Details
    Publication Date: 2024-06-01
    Description: Within the last decade, the Greenland ice sheet (GrIS) and its surroundings have experienced record high surface temperatures (Mote, 2007, doi:10.1029/2007GL031976; Box et al., 2010), ice sheet melt extent (Fettweis et al., 2011, doi:10.5194/tc-5-359-2011) and record-low summer sea-ice extent (Nghiem et al., 2007, doi:10.1029/2007GL031138). Using three independent data sets, we derive, for the first time, consistent ice-mass trends and temporal variations within seven major drainage basins from gravity fields from the Gravity Recovery and Climate Experiment (GRACE; Tapley et al., 2004, doi:10.1029/2004GL019920), surface-ice velocities from Inteferometric Synthetic Aperture Radar (InSAR; Rignot and Kanagaratnam, 2006, doi:10.1126/science.1121381) together with output of the regional atmospheric climate modelling (RACMO2/ GR; Ettema et al., 2009, doi:10.1029/2009GL038110), and surface-elevation changes from the Ice, cloud and land elevation satellite (ICESat; Sorensen et al., 2011, doi:10.5194/tc-5-173-2011). We show that changing ice discharge (D), surface melting and subsequent run-off (M/R) and precipitation (P) all contribute, in a complex and regionally variable interplay, to the increasingly negative mass balance of the GrIS observed within the last decade. Interannual variability in P along the northwest and west coasts of the GrIS largely explains the apparent regional mass loss increase during 2002-2010, and obscures increasing M/R and D since the 1990s. In winter 2002/2003 and 2008/2009, accumulation anomalies in the east and southeast temporarily outweighed the losses by M/R and D that prevailed during 2003-2008, and after summer 2010. Overall, for all basins of the GrIS, the decadal variability of anomalies in P, M/R and D between 1958 and 2010 (w.r.t. 1961-1990) was significantly exceeded by the regional trends observed during the GRACE period (2002-2011).
    Keywords: International Polar Year (2007-2008); IPY
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 23
    facet.materialart.
    Unknown
    Benthic foraminiferal δ¹⁸O alignments for IODP Site U1541, ODP Site 1090 and ODP Site 980-981 based on different tuning targets for the past ~3.5 Myr (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: This dataset presents benthic foraminiferal δ¹⁸O chronostratigraphies for International Ocean Discovery Program (IODP) Site U1541, Ocean Drilling Program (ODP) Site 1090 and ODP Site 980-981 based on different tuning targets including LR04 (Lisiecki and Raymo, 2005), LR09 (Lisiecki and Raymo, 2009), CENOGRID (Westerhold et al., 2020) and Probstack (Ahn et al., 2017) obtained by Middleton et al. (2024). The benthic foraminiferal δ¹⁸O record for IODP Site U1541 (54°13'S, 125°25'W) recently recovered from the central South Pacific on IODP Expedition 383 (Winckler et al., 2021) is shown for the first time and is published in Middleton et al. (2024). All data records are based on Cibicidoides wuellerstorfi and Cibicides kullenbergi, or combinations thereof. The dataset provides the basis for investigating and discussing the uncertainties of benthic foraminiferal δ¹⁸O stratigraphies for conventional manual and automated tuning techniques and evaluate their impact on sedimentary age models over the past 3.5 Myr (Middleton et al., 2024).
    Keywords: Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 7 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 24
    facet.materialart.
    Unknown
    Biogeochemical data of sediment cores of Herschel island (Yukon Coast 2022) (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: In July 2022 within the framework of an Alfred-Wegener-Institute-managed expedition and the Nunataryuk project, sediment cores were taken at three locations, off the coast of Herschel Island, Canada, using a hand corer: YC22_MR_6: 69°34'23.12N, 138°54'37.76W; 3 m water depth; July 6th 2022 YC22_MR_7: 69°34'23.53N, 138°56'37.66W, 6 m water depth; July 7th 2022 YC22_MR_8: 69°30'22.75''N, 138°53'21.69''W; 45 m water depth; July 24th 2022 Data sets were obtained to investigate carbon feedback from the sediments to the water column and atmosphere, using DIC concentrations and isotopic values. The local sediments are supplied primarily by organic carbon previously stored in adjacent permafrost soils (biomarker and bulk data), which erode and redeposit quickly (age model) on the ocean floor. The acquired data includes: 1) Sediment data: Bulk total organic carbon content (Lamping et al., 2021) and its isotopic values for 13C (Brodie et al., 2011; Werner & Brand, 2001) and 14C (Mollenhauer et al., 2021) and Biomarker data: Quantifying alkanes (CPI) , and fatty acids (TAR ratio) as described by Wei et al. (2020), Glycerol dialkyl glycerol tetraethers (GDGTs basis for BIT-Index) after Hopmans et al. (2016), Hopanes (fßß) following instructions by Meyer et al., (2019), and Sterols (Dinosterol) after Dauner et al. (2022). 2) Porewater was extracted from the cores using rhizomes and quantified as described in Oni et al., (2015). Dissolved inorganic carbon isotope signatures were determined as CO2 for 13C (Torres et al., 2005) and 14C (Mollenhauer et al., 2021). 3) Intact polar lipid fatty acids were extracted from the sediments, purified, and 14C analysis was performed as described in Ruben et al. (2023). The 13C isotopy was determined with GC-IRMS (Elvert et al., 2003). The respective precursor lipids of the polar fraction used for isotope analysis were quantified following the method described in Wörmer et al. (2013). Datasets are to be found at doi:10.1594/PANGAEA.966262 and doi:/10.1594/PANGAEA.966264. 4) Sedimentary age model of core YC22_MR_7 assuming constant rate of supply (CRS) model (Appleby, 2001), based on data obtained with a HPGe gamma detector.
    Keywords: NUNATARYUK; NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation
    Type: Dataset
    Format: application/zip, 7 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 25
    facet.materialart.
    Unknown
    Stable isotope, trace element and radiometric dating data covering 46.2-15.5 ka BP from stalagmite PR-LA-1 (Cueva Larga, Puerto Rico) (2020)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: We present results of Th/U dating, stable isotope and trace element data from a speleothem from Puerto Rico. Th/U dating was performed using isotope dilution MC-ICPMS. Activity ratios were corrected for initial Th assuming an detrital weight ratio 232Th/238U = 0.154 ± 0.038 (corresponding to an activity ratio of the detritus in secular equilibrium of (230Th/232Th)detr = 19.79 ± 4.93), and secular equilibrium of the detritus. Ages are calculated using the decay constants by Cheng et al. (2000)). Uncertainties are given as 2σ- range, and do not include half-life uncertainties. Th/U dating shows that stalagmite PR-LA-1 covers the period from 15.4 to 46.2 ka with a growth interruption between 35.5 and 41.1 ka. Stable isotope samples were drilled with a spatial resolution of 1 mm and measured using an IRMS equipped with a Gasbench. Element/Calcium ratios of the speleothem were measured by laser ablation ICPMS and were reduced to the resolution of the stable isotope records.
    Keywords: speleothem; Stable isotopes; trace elements
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 26
    facet.materialart.
    Unknown
    Activity Ratios, concentrations, calculated and model ages of LIG fossil reef corals from Aqaba, Jordan (2018)
    PANGAEA
    In:  Supplement to: Obert, J Christina; Scholz, Denis; Felis, Thomas; Lippold, Jörg; Jochum, Klaus Peter; Andreae, Meinrat O (2019): Improved constraints on open-system processes in fossil reef corals by combined Th/U, Pa/U and Ra/Th dating: A case study from Aqaba, Jordan. Geochimica et Cosmochimica Acta, 245, 459-478, https://doi.org/10.1016/j.gca.2018.11.024
    Details
    Publication Date: 2024-06-01
    Description: Here we present 230Th/U, 231Pa/U as well as 226Ra/230Th isotope ratios from five fossil reef corals of Last Interglacial origin from the Gulf of Aqaba, Northern Red Sea. The results show clear evidence for open-system behaviour with strongly elevated δ234U values and U concentrations indicating post-depositional U addition. The combined application of all isotope systems enables us to better constrain the nature and timing of the open-system processes than only based on the 230Th/U data. Quantitative modelling of the diagenetic processes allowed us to reproduce the trends in the isotope ratios. Two of the five corals were probably affected by two separate phases of U addition with different δ234U values. The trends observed for two other corals can be explained by U addition followed by U loss. The fifth coral shows signs of both U gain and loss at the same time in the more recent past. The timing of the diagenetic processes is remarkably similar for the five corals and can be constrained to approx. 1 and 6 thousand years (ka) and 100 and 102 ka after coral growth, respectively. Based on the modelling results, we suggest that conventional 231Pa/230Th ages provide the best estimate for the true age of four of the five corals, which range from 109.1 to 114.1 ka. This implies a late Last Interglacial time of deposition. For the fifth coral, the most reliable age estimate is the conventional 230Th/U age of one of the subsamples (117.3 ka), based on a concordia diagram for all subsamples. The timing of the modelled open-system processes suggests that the early event of U addition was associated with interaction of the corals with 234U-enriched seawater or saline groundwater. The later open-system event can be described as U redistribution within the coral reef, since some corals apparently lost U while others gained U. The timing of the second event is broadly consistent with the Bølling-Allerød interstadial, which was probably characterised by enhanced wetness in this typically hyper-arid region.
    Keywords: Center for Marine Environmental Sciences; MARUM
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 27
    facet.materialart.
    Unknown
    (Table 3) Details of field-based ice and snow profile measurements from the SIMBA 2007 experiment (2011)
    PANGAEA
    In:  Supplement to: Xie, Hongjie; Ackley, Stephen F; Yi, D; Zwally, H Jay; Wagner, P; Weissling, Blake P; Lewis, M; Ye, K (2011): Sea-ice thickness distribution of the Bellingshausen Sea from surface measurements and ICESat altimetry. Deep Sea Research Part II: Topical Studies in Oceanography, 58(9-10), 1039-1051, https://doi.org/10.1016/j.dsr2.2010.10.038
    Details
    Publication Date: 2024-06-01
    Description: Although sea-ice extent in the Bellingshausen-Amundsen (BA) seas sector of the Antarctic has shown significant decline over several decades, there is not enough data to draw any conclusion on sea-ice thickness and its change for the BA sector, or for the entire Southern Ocean. This paper presents our results of snow and ice thickness distributions from the SIMBA 2007 experiment in the Bellingshausen Sea, using four different methods (ASPeCt ship observations, downward-looking camera imaging, ship-based electromagnetic induction (EM) sounding, and in situ measurements using ice drills). A snow freeboard and ice thickness model generated from in situ measurements was then applied to contemporaneous ICESat (satellite laser altimetry) measured freeboard to derive ice thickness at the ICESat footprint scale. Errors from in situ measurements and from ICESat freeboard estimations were incorporated into the model, so a thorough evaluation of the model and uncertainty of the ice thickness estimation from ICESat are possible. Our results indicate that ICESat derived snow freeboard and ice thickness distributions (asymmetrical unimodal tailing to right) for first-year ice (0.29 ± 0.14 m for mean snow freeboard and 1.06 ± 0.40 m for mean ice thickness), multi-year ice (0.48 ± 0.26 and 1.59 ± 0.75 m, respectively), and all ice together (0.42 ± 0.24 and 1.38 ± 0.70 m, respectively) for the study area seem reasonable compared with those values from the in situ measurements, ASPeCt observations, and EM measurements. The EM measurements can act as an appropriate supplement for ASPeCt observations taken hourly from the ship's bridge and provide reasonable ice and snow distributions under homogeneous ice conditions. Our proposed approaches: (1) of using empirical equations relating snow freeboard to ice thickness based on in situ measurements and (2) of using isostatic equations that replace snow depth with snow freeboard (or empirical equations that convert freeboard to snow depth), are efficient and important ways to derive ice thickness from ICESat altimetry at the footprint scale for Antarctic sea ice. Spatial and temporal snow and ice thickness from satellite altimetry for the BA sector and for the entire Southern Ocean is therefore possible.
    Keywords: Bellingshausen Sea; Event label; Freeboard; ICE; Ice station; International Polar Year (2007-2008); IPY; Latitude of event; Longitude of event; Nathaniel B. Palmer; NBP0709; Number of measurements; Sea ice thickness; SIMBA; SIMBA_Brussels; SIMBA_Fabra; SIMBA_Station-1; SIMBA_Station-2; SIMBA_Station-3; Snow thickness
    Type: Dataset
    Format: text/tab-separated-values, 30 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 28
    facet.materialart.
    Unknown
    (Supplement Table S2) Results of 230Th/U-dating (2016)
    PANGAEA
    In:  Supplement to: Obert, J Christina; Scholz, Denis; Felis, Thomas; Brocas, William M; Jochum, Klaus Peter; Andreae, Meinrat O (2016): 230Th/U dating of Last Interglacial brain corals from Bonaire (southern Caribbean) using bulk and theca wall material. Geochimica et Cosmochimica Acta, 178, 20-40, https://doi.org/10.1016/j.gca.2016.01.011
    Details
    Publication Date: 2024-06-01
    Description: We compared the suitability of two skeletal materials of the Atlantic brain coral Diploria strigosa for 230Th/U-dating: the commonly used bulk material comprising all skeletal elements and the denser theca wall material. Eight fossil corals of presumably Last Interglacial age from Bonaire, southern Caribbean Sea, were investigated, and several sub-samples were dated from each coral. For four corals, both the ages and the activity ratios of the bulk material and theca wall agree within uncertainty. Three corals show significantly older ages for their bulk material than for their theca wall material as well as substantially elevated 232Th content and (230Th/238U) ratios. The bulk material samples of another coral show younger ages and lower (230Th/238U) ratios than the corresponding theca wall samples. This coral also contains a considerable amount of 232Th. The application of the available open-system models developed to account for post-depositional diagenetic effects in corals shows that none of the models can successfully be applied to the Bonaire corals. The most likely explanation for this observation is that the assumptions of the models are not fulfilled by our data set. Comparison of the theca wall and bulk material data enables us to obtain information about the open-system processes that affected the corals. The corals showing apparently older ages for their bulk material were probably affected by contamination with a secondary (detrital) phase. The most likely source of the detrital material is carbonate sand. The higher (230Th/232Th) ratio of this material implies that detrital contamination would have a much stronger impact on the ages than a contaminant with a bulk Earth (230Th/232Th) ratio and that the threshold for the commonly applied 232Th reliability criterion would be much lower than the generally used value of 1 ng g^-1. The coral showing apparently younger ages for its bulk material was probably influenced by more than one diagenetic process. A potential scenario is a combination of detrital contamination and U addition by secondary pore infillings. Our results show that the dense theca wall material of D. strigosa is generally less affected by post-depositional open-system behaviour and better suited for 230Th/U-dating than the bulk material. This is also obvious from the fact that all ages of theca wall material reflect a Last Interglacial origin (~125 ka), whereas the bulk material samples are either substantially older or younger. However, for some corals, the 230Th/U-ages and activity ratios of the bulk material and the theca wall samples are similar. This shows that strictly reliable 230Th/U-ages can also be obtained from bulk material samples of exceptionally well-preserved corals. However, the bulk material samples more frequently show elevated activity ratios and ages than the corresponding theca wall samples. Our findings should be generally applicable to brain corals (Mussidae) that are found in tropical oceans worldwide and may enable reliable 230Th/U-dating of fossil corals with similar skeletal architecture, even if their bulk skeleton is altered by diagenesis. The 230Th/U-ages we consider reliable (120–130 ka), along with a recently published age of 118 ka, provide the first comprehensive dating of the elevated lower reef terrace at Bonaire (118–130 ka), which is in agreement in timing and duration with other Last Interglacial records.
    Keywords: AGE; Age, 230Th/U Thorium-Uranium; Age, standard deviation; BON-12-A; BON-13-AI.1; BON-17-AI; BON-24-AII.2; BON-26-A; BON-28-AI; BON-33-BI.2; BON-5-A; Bonaire, Caribbean Netherlands; Center for Marine Environmental Sciences; Comment; DRILL; Drilling/drill rig; Event label; Group; Hand drill; HDRILL; MARUM; Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS); Thorium-230/Uranium-238 activity ratio; Thorium-230/Uranium-238 activity ratio, standard deviation; Thorium-232; Thorium-232/Uranium-238 activity ratio; Thorium-232/Uranium-238 activity ratio, standard deviation; Uranium-234/Uranium-238 activity ratio; Uranium-234/Uranium-238 activity ratio, standard deviation; Uranium-238
    Type: Dataset
    Format: text/tab-separated-values, 546 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 29
    facet.materialart.
    Unknown
    Bacterial and fungal communities in biological soil crusts from Oman (2019)
    PANGAEA
    In:  Supplement to: Abed, Raeid M M; Tamm, Susanne; Hassenrück, Christiane; Al-Rawahi, Ahmed N; Rodríguez-Caballero, Emilio; Fiedler, Stephanie; Maier, Stefanie; Weber, Bettina (2019): Habitat-dependent composition of bacterial and fungal communities in biological soil crusts from Oman. Scientific Reports, 9(1), https://doi.org/10.1038/s41598-019-42911-6
    Details
    Publication Date: 2024-06-01
    Description: Biological soil crusts (biocrusts) occur within drylands throughout the world, covering ~12% of the global terrestrial soil surface. Their occurrence in the deserts of the Arabian Peninsula has rarely been reported and their spatial distribution, diversity, and microbial composition remained largely unexplored. We investigated biocrusts at six different locations in the coastal and central deserts of Oman. The biocrust types were characterized, and the bacterial and fungal community compositions of biocrusts and uncrusted soils were analysed by amplicon sequencing. For each sample two different libraries were prepared: one for the V3V4 hypervariable region of the 16S rRNA gene (bacteria), and the other for the internal transcribed spacer 1 (ITS1; fungi). Sequences were processed in R using dada2. The code for sequence processing as well as statistical analysis, final OTU and taxonomy tables were archived on PANGAEA alongside the environmental information.
    Keywords: Area/locality; Carbon, total; Carbon/Nitrogen ratio; Conductivity, specific; Country; Date/Time of event; Depth, bottom/max; Depth, top/min; ELEVATION; Environment; Event label; Guidelines for soil description; Impact; Latitude of event; Longitude of event; Nitrogen, total; Oman; Oman_20160125; Oman_20160126; Oman_20160127-01; Oman_20160127-02; Oman_20160127-03; Oman_20160127-04; Oman_20160129; pH; pH electrode, Hamilton Messetechnik GmbH, Minitrode, [Höchst, Germany]; Replicates; Sample code/label; Sample comment; Soil properties; Soil type; Type
    Type: Dataset
    Format: text/tab-separated-values, 908 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 30
    facet.materialart.
    Unknown
    Stable isotopes covering 96-7 ka BP from stalagmite CM (Santo Tomas Cave, Cuba) (2020)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: We present a new speleothem trace element and stable isotope record, which extends previous paleoclimate evidence from Cuban speleothems to the last 96 ka. Stable isotope samples were micromilled at a resolution of 0.10-0.33mm, and measured using an IRMS equipped with a Gasbench. Line scans of Element/Calcium ratios of the speleothem were measured by laser ablation ICPMS and were reduced to the resolution of the stable isotope records.
    Keywords: AGE; Central America; Mass spectrometer DeltaPlusXL coupled to a Gasbench II; paleoclimatology; Santo Tomas Cave, Cuba; speleothem; Speleothem sample; SPS; Stable isotopes; Stalagmite Cuba Medio; STC-CM; δ13C, stacked; δ18O, stacked
    Type: Dataset
    Format: text/tab-separated-values, 3568 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 31
    facet.materialart.
    Unknown
    Trace element data covering 96-7 ka BP from stalagmite CM (Santo Tomas Cave, Cuba) (2020)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: We present a new speleothem trace element and stable isotope record, which extends previous paleoclimate evidence from Cuban speleothems to the last 96 ka. Stable isotope samples were micromilled at a resolution of 0.10-0.33mm, and measured using an IRMS equipped with a Gasbench. Line scans of Element/Calcium ratios of the speleothem were measured by laser ablation ICPMS and were reduced to the resolution of the stable isotope records.
    Keywords: AGE; Barium/Calcium ratio; Central America; Laser-ablation inductively coupled plasma sector field mass spectrometer (LA-ICP-SF-MS); Magnesium/Calcium ratio; paleoclimatology; Phosphorus/Calcium ratio; Santo Tomas Cave, Cuba; speleothem; Speleothem sample; SPS; Stalagmite Cuba Medio; STC-CM; Strontium/Calcium ratio; trace elements; Uranium/Calcium ratio
    Type: Dataset
    Format: text/tab-separated-values, 11205 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 32
    facet.materialart.
    Unknown
    Time resolved trace element–to–calcium values measured with Laser ablation ICP-MS along lines of coral colony A to D (Porites lobata and Porites lichen) cultured with different metal concentrations (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: Culturing experiments exposed the scleractinian corals Porites lobata and Porites lichen to a mixture of dissolved chromium (Cr), manganese (Mn), nickel (Ni), copper (Cu), zinc (Zn), silver (Ag), cadmium (Cd), tin (Sn), mercury (Hg) and lead (Pb) in a wide concentration range for a period of more than a year. The aim was to examine whether the incorporation of heavy metals into the aragonitic skeleton of the corals is a direct function of their concentration in seawater. Therefore, the trace-element-to-calcium ratio (TE/Ca) in the coral aragonite precipitated during culturing was measured by Laser ablation ICP-MS in 2020. The measurement showed that all metals used here were measureable in the coral skeleton and only minor, non-systematic intra- and interspecies differences in the trace metal concentrations was found. A positive correlation between the TE/Ca values and the coral skeleton was found for Cr, Mn, Ni, Zn, Ag, Cd and Pb. Cu, Sn and Hg did not show any clear trend. This dataset shows time resolved trace element-to-calcium values of coral colonies A to D cultured in the metal system along the measured Laser ablation ICP-MS scanning lines (Line XY stands for different Laser ablation lines measured at different positions at one respective coral colony) and values derived from the composite lines. Measurements were carried out from the top of the coral to the bottom and the distance starting from the top is indicated as “Elapse Time”. The energy density of the laser was set to 10 J/cm3, the laser spot size was 120 µm diameter and the stage moved 50 µm/s. Prior to every scan, a preablation pass with a spot size of 160 µm diameter was carried out to clean the cut surface of the coral skeleton. Culturing experiments were configured with two identically experimental aquaria. Four different coral colonies and two different species were used (Porites lobate Coral A-C, Porites lichen Coral D). All colonies were divided into subcolonies and growth control was performed with Alizarin Red S prior and during the experiment. One subcolony was placed in each experimental tank. The control aquarium remained unmodified while the trace metal concentration in the metal aquarium was elevated stepwise (Phase 1-4, Phase 1 = lowest metal concentration). The trace metal concentration in both tanks was monitored during the culturing period. After the experiment and more than 15 months later, specimens were cut again and the trace metal concentration in the coral skeleton was determined. It should be noted that coral D died 2.5 weeks after the exposure to the highest metal concentration in phase 4. TE/Ca values are processes as followed: (1) Time resolves raw intensities (in counts per seconds) for all isotopes measured were processed with the software Iolite (Version 4). The determination of element/Ca ratios was performed after the method of Rosenthal et al. (1999). High values of 25Mg, 27Al or 55Mn at the beginning of an ablation profile were related to contamination on the surface of the coral or remains of organic matter and these parts of the profiles were excluded from further data processing. (2) The NIST SRM 612 glass (Jochum et al., 2011) was used for monitoring and correction of the instrument drift. (3) The detection limit was defined by 3.3*SD of the gas blank in counts per seconds for every element in the raw data. Only values above this limit were used for further analyses and no data below the LOQ (limit of quantification = 10*SD) were interpreted. After processing the data with Iolite, an outlier detection of the TE/Ca ratios of the samples was performed. If trace metal values from deviated more than ±2SD from the average of the samples from the corresponding culturing phase, values were defined as outliers and discarded. (4) A composite line was calculated individually for all colonies consisting of the laser ablation measurements along the main growth axis of the coral (coral A line 1-3, coral B line 1-3, coral C line 2 + 3, coral D line 1). Laser ablation measurements along lines that were deviating from the main growth axis of the coral were not taken into account. Calculations were performed with QAnalyseries (Kotov and Paelike, 2018).
    Keywords: Argentum/Calcium ratio; Cadmium/Calcium ratio; Chromium/Calcium ratio; Copper/Calcium ratio; Coral; culture experiment; Elapsed time; Experiment; heavy metals; Laser Ablation; Laser ablation, ICP-MS; Lead/Calcium ratio; Magnesium/Calcium ratio; Manganese/Calcium ratio; Mercury/Calcium ratio; Nickel/Calcium ratio; Phase; Porites; Strontium/Calcium ratio; Tin/Calcium ratio; trace elements; Zinc/Calcium ratio
    Type: Dataset
    Format: text/tab-separated-values, 836360 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 33
    facet.materialart.
    Unknown
    Detrital zircon geochronology data, petrographic point count data and paleocurrent indicator data of Triassic turbidites in the Nanpanjiang Basin, South China (2015)
    PANGAEA
    In:  Supplement to: Lehrmann, Daniel; Chaikin, Daniel H; Enos, Paul; Minzoni, Marcello; Payne, Jonathan L; Yu, Meiyi; Goers, Alexa; Wood, Tanner; Richter, Paula; Kelley, Brian M; Li, Xiaowei; Quin, Yanijao; Liu, Lingyun; Lu, Gang (2015): Patterns of basin fill in Triassic turbidites of the Nanpanjiang basin: implications for regional tectonics and impacts on carbonate-platform evolution. Basin Research, 27(5), 587-612, https://doi.org/10.1111/bre.12090
    Details
    Publication Date: 2024-06-01
    Description: Triassic turbidites of the Nanpanjiang basin of south China represent the most expansive and voluminous siliciclastic turbidite accumulation in south China. The Nanpanjiang basin occurs at a critical junction between the southern margin of the south China plate and the Indochina, Siamo and Sibumasu plates to the south and southwest. The Triassic Yangtze carbonate shelf and isolated carbonated platforms in the basin have been extensively studied, but silicilastic turbidites in the basin have received relatively little attention. Deciphering the facies, paleocurrent indicators and provenance of the Triassic turbidites is important for several reasons: it promises to help resolve the timing of plate collisions along suture zones bordering the basin to the south and southwest, it will enable evaluation of which suture zones and Precambrian massifs were source areas, and it will allow an evaluation of the impact of the siliciclastic flux on carbonate platform evolution within the basin. Turbidites in the basin include the Early Triassic Shipao Formation and the Middle-Late Triassic Baifeng, Xinyuan, Lanmu Bianyang and Laishike formations. Each ranges upward of 700 m and the thickest is nearly 3 km. The turbidites contain very-fine sand in the northern part of the basin whereas the central and southern parts of the basin also commonly contain fine and rarely medium sand size. Coarser sand sizes occur where paleocurrents are from the south, and in this area some turbidites exhibit complete bouma sequences with graded A divisions. Successions contain numerous alternations between mud-rich and sand-rich intervals with thickness trends corresponding to proximal/ distal fan components. Spectacularly preserved sedimentary structures enable robust evaluation of turbidite systems and paleocurrent analyses. Analysis of paleocurrent measurements indicates two major directions of sediment fill. The northern part of the basin was sourced primarily by the Jiangnan massif in the northeast, and the central and southern parts of the basin were sourced primarily from suture zones and the Yunkai massif to the south and southeast respectively. Sandstones of the Lower Triassic Shipao Fm. have volcaniclastic composition including embayed quartz and glass shards. Middle Triassic sandstones are moderately mature, matrix-rich, lithic wackes. The average QFL ratio from all point count samples is 54.1/18.1/27.8% and the QmFLt ratio is 37.8/ 18.1/ 44.1%. Lithic fragments are dominantly claystone and siltstone clasts and metasedimentary clasts such as quartz mica tectonite. Volcanic lithics are rare. Most samples fall in the recycled orogen field of QmFLt plots, indicating a relatively quartz and lithic rich composition consistent with derivation from Precambrian massifs such as the Jiangnan, and Yunkai. A few samples from the southwest part of the basin fall into the dissected arc field, indicating a somewhat more lithic and feldspar-rich composition consistent with derivation from a suture zone Analysis of detrial zircon populations from 17 samples collected across the basin indicate: (1) Several samples contain zircons with concordant ages greater than 3000 Ma, (2) there are widespread peaks across the basin at 1800 Ma and 2500, (3) a widespread 900 Ma population, (3) a widespread population of zircons at 440 Ma, and (5) a larger population of younger zircons about 250 Ma in the southwestern part which is replaced to the north and northwest by a somewhat older population around 260-290 Ma. The 900 Ma provenance fits derivation from the Jiangnan Massif, the 2500, 1800, and 440 Ma provenance fits the Yunkai massif, and the 250 Ma is consistent with convergence and arc development in suture zones bordering the basin on the south or southwest. Early siliciclastic turbidite flux, proximal to source areas impacted carbonate platform evolution by infilling the basin, reducing accommodation space, stabilizing carbonate platform margins and promoting margin progradation. Late arrival, in areas far from source areas caused margin aggradation over a starved basin, development of high relief aggradational escarpments and unstable scalloped margins.
    Keywords: Age, error; Age, mineral; Area/locality; Correction; Feldspar; Formation; Guangxi, Guizhou, China; HAND; HR ICP-MS, Nu [Arizona Laserchron Center (ALC)]; Kalifeldspar; LATITUDE; Lead-206/Lead-204 ratio; Lead-206/Lead-207, error; Lead-206/Lead-207 ratio; Lead-206/Uranium-238, error; Lead-206/Uranium-238 ratio; Lead-207/Uranium-235, error; Lead-207/Uranium-235 ratio; Linear flow indicator; Lithic grains; LONGITUDE; Matrix; Nanpanjiang_Basin; Number of points; Plagioclase; Point counting, petrographic microscope; Protractor, corrected for strike and dip; Quartz; Quartz, monocrystalline; Quartz, polycrystalline; Sample code/label; Sampling by hand; Sedimentary fragments; Uranium; Uranium/Thorium ratio; Vector; Volcanic fragments
    Type: Dataset
    Format: text/tab-separated-values, 34067 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 34
    facet.materialart.
    Unknown
    (Table 1) GRACE-derived mass balance of the Greenland ice sheet 2002-2010 (2012)
    PANGAEA
    In:  Supplement to: Bergmann, Inga; Ramillien, Guillaume; Frappart, Frédéric (2012): Climate-driven interannual ice mass evolution in Greenland. Global and Planetary Change, 82-83, 1-11, https://doi.org/10.1016/j.gloplacha.2011.11.005
    Details
    Publication Date: 2024-06-01
    Description: We re-evaluate the Greenland mass balance for the recent period using low-pass Independent Component Analysis (ICA) post-processing of the Level-2 GRACE data (2002-2010) from different official providers (UTCSR, JPL, GFZ) and confirm the present important ice mass loss in the range of -70 and -90 Gt/y of this ice sheet, due to negative contributions of the glaciers on the east coast. We highlight the high interannual variability of mass variations of the Greenland Ice Sheet (GrIS), especially the recent deceleration of ice loss in 2009-2010, once seasonal cycles are robustly removed by Seasonal Trend Loess (STL) decomposition. Interannual variability leads to varying trend estimates depending on the considered time span. Correction of post-glacial rebound effects on ice mass trend estimates represents no more than 8 Gt/y over the whole ice sheet. We also investigate possible climatic causes that can explain these ice mass interannual variations, as strong correlations between GRACE-based mass balance and atmosphere/ocean parallels are established: (1) changes in snow accumulation, and (2) the influence of inputs of warm ocean water that periodically accelerate the calving of glaciers in coastal regions and, feed-back effects of coastal water cooling by fresh currents from glaciers melting. These results suggest that the Greenland mass balance is driven by coastal sea surface temperature at time scales shorter than accumulation.
    Keywords: Date/time end; Date/time start; Description; GeoForschungszentrum Potsdam; GFZ; GRACE satellite data, processed; Greenland; Greenland_Ice; International Polar Year (2007-2008); IPY; Mass balance; Reference/source; Standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 102 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 35
    facet.materialart.
    Unknown
    Analyses on Cibicidoides wuellerstorfi from ODP Hole 165-999A (2020)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: For trace element analyses, single specimens of C. wuellerstorfi have been analyzed using femtosecond laser ablation inductively coupled plasma mass spectrometry (fs-LA-ICP131 MS) at the Geochemistry Laboratory at the Max Planck Institute for Chemistry. Na, Mg, and Sr of 142 specimens of C. wuellerstorfi have been measured at high-resolution on (up to) each of the final five chambers to eliminate possible inaccuracies that are likely to be caused by varying sample size. The fs-LA-ICP-MS analyses were performed on 25-μm diameter spots on each chamber with a pulse repetition rate of 15 Hz at low fluence (0.1-0.3 J/cm2). Calibration was performed with the microanalytical synthetic reference material MACS‐3 for carbonate and NIST612 for silica. Average values of all chambers analyzed in the same specimen were used for further analyses. Since foraminifers from different regions show particular offsets in the Mg/Ca composition of their shell, depending on region specific temperature ranges of ambient seawater, region-specific formulas are used. We have applied the formula Mg/Ca=0.82e^0.19*BWT of Tisserand et al. (2013) from samples collected from similar geographic situations to avoid offsets. The formula has been applied to calculate temperature variability of each analyzed chamber. The average value obtained from chamber-to-chamber temperature variability of each specimen has been applied as average temperature data of the entire test.
    Keywords: 165-999A; Caribbean Sea; Cibicidoides wuellerstorfi, Magnesium/Calcium ratio; Cibicidoides wuellerstorfi, Sodium/Calcium ratio; Cibicidoides wuellerstorfi, Strontium/Calcium ratio; DRILL; Drilling/drill rig; Joides Resolution; LA-ICP-MS, Laser-ablation inductively coupled plasma mass spectrometer; Leg165; Sample code/label; Sample ID; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 3701 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 36
    facet.materialart.
    Unknown
    Occurrence of Globorotalia cavernula in the water column and sediments: global compilation of sightings and abundances (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: Here, we present a global compilation of previously reported sightings of the rare planktic foraminifer Globorotalia cavernula Bé, 1967 as well as new observations of live-collected specimens from the Southern Ocean (Subantarctic south of Africa). The goal of this synthesis is to provide the geographic and stratigraphic context needed to investigate the past and present-day distributions of this rare but possibly under-recognized species. The previous records include modern occurrences in the water column (collected by plankton net tows and a single sediment trap) and seafloor sediments ranging in age from recent to Eocene. Seafloor sediment samples were collected by dredge, sediment grabs and core-tops. Deeper sediments came from drilling cores. Existing databases provided a foundation for this compilation, particularly ForCenS for surface sediments (Siccha & Kucera, 2017) and FORCIS for water-column collections (de Garidel-Thoron et al., 2022; Chaabane et al., 2022, 2023). These records were supplemented with occurrences from the literature, PANGEA, and cruise reports of the Deep Sea Drilling Project (DSDP) / Ocean Drilling Program (ODP). Searches were conducted in October 2022 using Google Scholar, GBIF, EOL (Encyclopedia of Life, "http://eol.org", which includes records from the Smithsonian NMNH). Where available, we include information on the abundance of G. cavernula in each collection, and indicate whether photographic evidence (or drawings) could be found to support the identification. Globorotalia crozetensis Thompson, 1973 (reclassified as G. cavernula by Brummer & Kučera, 2022) and closely related Globorotalia petaliformis Boltovskoy, 1974 were also included in compilation.
    Keywords: 15-147; 154-925; 164-997A; 180-1108B; 26-253; 26-254; 26-258A; 2803; 2804; 29-284; 40-362A; 49-411A; 49-412; 54-423; 54-424; 54-425; 73-519; Abundance; abundance data; Abundance per volume; Age, comment; Antarctic Ocean/Tasman Sea/PLATEAU; ATLANTIS_II_cruise31_36; Author(s); Be67_EL_10-1-130; Be67_EL_10-1-131; Be67_EL_10-19-186; Be67_EL_10-19-187; Be67_EL_10-20-190; Be67_EL_10-2-133; Be67_EL_10-24-208; Be67_EL_10-28-219; Be67_EL_10-29-221; Be67_EL_10-31-225; Be67_EL_10-31-226; Be67_EL_10-31-227; Be67_EL_10-3-136; Be67_EL_10-32-230; Be67_EL_10-4-139; Be67_EL_10-5-141; Be67_EL_11-5-249; Be67_EL_13-1-443; Be67_EL_13-2-449; Be67_EL_13-3-456; Be67_EL_13-6-474; Be67_EL_14-4-594; Be67_EL_15-17-806; Be67_EL_15-23-843; Be67_EL_15-26-864; Be67_EL_15-5-751; Be67_EL_15-5-752; Be67_EL_17-34-1112; Be67_EL_18-1-1137; Be67_EL_18-2-1138; Be67_EL_18-3-1150; Be67_EL_19-1171; Be67_EL_19-13-1233; Be67_RC9_80; Be67_RC9_92; Be67_V16_202; BOFS31/1K; BOFS31#1; Caribbean Sea/RIDGE; CD53; Charles Darwin; Closing Discovery net, Manufacturer unknown, N70V; Comment; COMPCORE; Composite Core; Core tops; CP_trap; Cruise/expedition; Depth, description; Disc2_1951_2803; Disc2_1951_2804; DRILL; Drilling/drill rig; EL 10-1-130; EL 10-1-131; EL 10-19-186; EL 10-19-187; EL 10-20-190; EL 10-2-133; EL 10-24-208; EL 10-28-219; EL 10-29-221; EL 10-31-225; EL 10-31-226; EL 10-31-227; EL 10-3-136; EL 10-32-230; EL 10-4-139; EL 10-5-141; EL 11-5-249; EL 13-1-443; EL 13-2-449; EL 13-3-456; EL 13-6-474; EL 14-4-594; EL 15-17-806; EL 15-23-843; EL 15-26-864; EL 15-5-751; EL 15-5-752; EL 17-34-1112; EL 18-1-1137; EL 18-2-1138; EL 18-3-1150; EL 19-1171; EL 19-13-1233; ELT10; ELT11; ELT13; ELT14; ELT15; ELT17; ELT18; ELT19; Eltanin; Event label; GeoB1728-3; Giant box corer; GIK15612-2; GIK15637-1; GIK15667-1; GIK15669-2; GIK15672-2; GIK17933-2; GKG; Globorotalia cavernula; Globorotalia crozetensis; Globorotalia petaliformis; Glomar Challenger; Gravity corer (Kiel type); Hayward86_station17; Indian Ocean//PLATEAU; Indian Ocean//RIDGE; Joides Resolution; KAL; Kasten corer; Knorr73_MOC131; KOL; LATITUDE; Leg15; Leg154; Leg164; Leg180; Leg26; Leg29; Leg40; Leg49; Leg54; Leg73; LONGITUDE; M20/2; M35/1; M35027-1; M53; M53_167; M53_169; M53_172-1; M57; M6; M9; Meteor (1964); Meteor (1986); MOC; MOCNESS opening/closing plankton net; MONITOR MONSUN; Namibia Continental Margin; net tows; Nicaraguan Rise, North Atlantic Ocean; North Atlantic; North Atlantic/BASIN; North Atlantic/FRACTURE ZONE; Northeast Atlantic; North Pacific/MOUND; North Pacific/SEDIMENT POND; Number of specimens; occurrence data; Ocean and sea region; off West Africa; Optional event label; PC; Persistent Identifier; Piston corer; Piston corer (Kiel type); PLA; planktic foraminifera; Plankton net; R/V_Knorr_73_MOC131; RC08; RC08-39; RC 9-80; RC 9-92; Reference/source; Robert Conrad; S. A. Agulhas II; Sample method; Sediment cores; Sediment sample; SES; Site; SL; SO95; Solomon Sea; Sonne; South Atlantic/RIDGE; South Atlantic Ocean; South China Sea; Species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); station 17; Trap; TRAP; Uniform resource locator/link to reference; V16; V 16-202; van Veen Grab; Vema; VGRAB; VOY016; VOY016_W2; VOY016_W3; VOY019; VOY019_M6; VOY019_M9; W2; W3
    Type: Dataset
    Format: text/tab-separated-values, 1061 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 37
    facet.materialart.
    Unknown
    Untargeted 1H‐NMR based metabolic profiling of liver and muscle tissue of juvenile turbot (Scophthalmus maximus) fed with emerging protein sources (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: This study examined the metabolic response of juvenile turbot (Scophthalmus maximus) to diets with graded fishmeal (FM) replacement with plant, animal, and emerging protein sources (PLANT, PAP, and MIX) in comparison to a commercial-like diet (CTRL). The feeding experiment was carried out from April to July 2019 in the Centre for Aquaculture Research (ZAF) at the Alfred Wegener Institute for Polar and Marine research in Bremerhaven, Germany. The juvenile turbot (Scophthalmus maximus) were purchased from France Turbot (L'Épine, France) and acclimated to the recirculating aquaculture system (RAS) for 2 weeks prior to starting the 16 weeks experimental trial. To elucidate the effects of the protein sources and the level of FM replacement on the metabolic response of the fish, a 1H‐nuclear magnetic resonance (NMR) spectroscopy was used to assess the metabolic profiles of muscle and liver tissue after feeding the fish the experimental diets for 16 weeks. Feed, muscle, and liver samples were ground under liquid nitrogen and approx. 200–250 mg tissue was homogenized in 5x volume of ice‐cold 0.6 M perchloric acid (PCA) (w:v). After one cycle of 20 s at 6000 rpm and 3 °C, using Precellys 24 (Bertin Technologies, Montigny‐le‐Bretonneux, France), samples were sonicated for 2 min at 0 °C and 360 W (Branson Sonifier 450, FisherScientific, Schwerte, Germany). Homogenates of the experimental diets, muscle and liver tissues were centrifuged for 2 min at 0 °C and 16,000 g, and supernatants were neutralized with ice cold potassium hydroxide (KOH) and PCA to pH 7.0–7.5. To remove precipitated potassium, perchlorate samples were centrifuged again for 2 min at 0 °C and 16,000 g. The entire supernatant was transferred, shock‐ frozen in liquid nitrogen, and stored an −80 °C for later analysis. One‐dimensional 1H‐NMR spectra for feed and tissues extracts were acquired using a vertical 9.4 T wide bore magnet with Avance III HD (Bruker‐GmbH, Ettlingen, Germany) at 400.13 MHz with a 1.7 mm diameter triple tuned (1H‐13C‐15N) probe. Each spectrum was processed and analyzed with Chenomx NMR Suite 8.4 software (Chenomx Inc., Edmonton, Canada). Before analyzing, the spectra were corrected for phase, shim and baseline and calibrated to trymethylsilyl proprionate (TSP) signal (at 0.0 ppm).
    Keywords: Acetate; Adenine; Adenosine diphosphate; Adenosine monophosphate; Adenosine triphosphate; Alanine; Analysis; Analysis date/time, experiment; Anserine; Arginine; Aspartate; betaine; Betaine; by-product; Carnitine; Choline; Creatine; Creatine phosphate; Creatinine; D-Glucose 6-phosphate; Dimethylamine; Dimethyl sulfone; Experiment; Experiment number; Formate; Fumarate; Glutamate; Glutamine; Glycine; Identification; insect meal; Isoleucine; Laboratory experiment; Lactate; Leucine; Location; Malonate; Material; Methionine; Method comment; N,N-Dimethylglycine; Nuclear magnetic resonance spectrometer (NMR), Bruker, Avance III HD 400; O-Phosphocholine; Proline; Sample, optional label/labor no; Sample ID; Sampling date/time, experiment; Sarcosine; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Succinate; Tank number; Taurine; Threonine; Time point, descriptive; TMAO; Treatment; Trimethylamine N-oxide; Type of study; Valine
    Type: Dataset
    Format: text/tab-separated-values, 6200 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 38
    facet.materialart.
    Unknown
    Presence-absence records for four cold-water coral taxa on the seamounts of Cabo Verde (NW Africa) (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: Presence-absence records for four cold-water coral (CWC) taxa (Enallopsammia rostrata, Acanella arbuscula, Metallogorgia spp. and Paramuricea spp.) were gathered to conduct distribution models on seamounts (Cadamosto, Nola, Senghor and Cabo Verde) of the Cabo Verde archipelago (NW Africa), covering a bathymetric range from 2100 to 750 m water depth. Data were extracted from video footage collected with Remotely Operated Vehicles during the M80/3 Meteor (2010) and the iMirabilis2 (2021) research expeditions. Video data from the iMirabilis2 expedition was analysed, quantitively, using the open-source software BIIGLE (Langenkämper et al. 2017). Observations from five continuous 1 to 2 km-long video transects between 2000 and 1400 m depth at Cadamosto Seamount were converted into presence-absence data points. Similar data were not available for the seamounts explored during M80/3 Meteor. However, all the available images and short video clips from that expedition were analysed to identify presence and absence points for each of the four target CWC taxa. All the available presence/absence data from the two expeditions was transformed into one point per grid cell of a 100 m resolution bathymetry grid, with the prevalence of the presence records over the absence records, in grid cells where both categories overlapped.
    Keywords: Atlantic Ocean; Binary Object; Binary Object (File Size); Binary Object (Media Type); Cabo Verde; Cadamosto Seamount, Cabo Verde; Cape Verde; cold-water coral; Cruise/expedition; DATE/TIME; Deep-sea; distribution modelling; Event label; File content; Genus; Horizontal datum; iAtlantic; iMirabilis2_Leg1; iMirabilis2_Leg1_24; iMirabilis2_Leg1_46; iMirabilis2_Leg1_55; iMirabilis2_Leg1_64; iMirabilis2_Leg1_75; Integrated Assessment of Atlantic Marine Ecosystems in Space and Time; LATITUDE; Latitude, northbound; Latitude, southbound; Location; LONGITUDE; Longitude, eastbound; Longitude, westbound; M80/3; M80/3_10; M80/3_100; M80/3_33; M80/3_35; M80/3_7; M80/3_84; Meteor (1986); Presence/absence; Remote operated vehicle; ROV; ROV Luso; Sarmiento de Gamboa; Species; Taxon/taxa, unique identification (Semantic URI); Taxon/taxa, unique identification (URI); UTM Easting, Universal Transverse Mercator; UTM Northing, Universal Transverse Mercator; UTM Zone, Universal Transverse Mercator; Vertical datum; VIDEO; Video camera
    Type: Dataset
    Format: text/tab-separated-values, 10855 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 39
    facet.materialart.
    Unknown
    Pore-water salinity measurements in surface sediments within DynaCom experimental islands and saltmarsh enclosed plots at different elevation levels, Spiekeroog, Germany, 2022-01 to 2022-11 (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: Data presented here were collected between January 2022 to November 2022 within the research unit DynaCom (Spatial community ecology in highly dynamic landscapes: From island biogeography to metaecosystems) of the Universities of Oldenburg, Göttingen, and Münster, the iDiv Leipzig and the Nationalpark Niedersächsisches Wattenmeer. Experimental islands and saltmarsh enclosed plots were created in the back barrier tidal flat and in the saltmarsh zone of the island of Spiekeroog. Sediment samples for the determination of pore-water salinity were taken bi-/monthly in surface sediments (0-3 cm depth) of the experimental plots. Samples were stored dark and cool (8°C) until measurement. Samples were measured in the laboratory within two months after sampling according to DIN ISO 11265:1997-06. In the laboratory, sediment samples for the determination of pore-water salinity were weighed in pre-weighed Falcon™ 50 mL conical centrifuge tubes (10 g sediment on average, depending on sand content). After one month of air-drying samples were re-weighed to determine dry weight and therefore the loss in weight. Ultrapure water was added to the tubes and were homogenized using a pestle. Salinity was measured directly in the tubes with a HQ40D Digital two channel multi meter and a pre-calibrated Intellical CDC401 field 4-poles graphite conductivity cell (Hach Lange GmbH, Germany). Post-processing of measured values were done using MATLAB (R2018a). Quality control was performed by (a) visually checks, and hence (b) the classification into quality control flags using quality check algorithms
    Keywords: BEFmate; BEFmate_C1low; BEFmate_C1pio; BEFmate_C1upp; BEFmate_C2low; BEFmate_C2pio; BEFmate_C2upp; BEFmate_C3low; BEFmate_C3pio; BEFmate_C3upp; BEFmate_C4low; BEFmate_C4pio; BEFmate_C4upp; BEFmate_C5low; BEFmate_C5pio; BEFmate_C5upp; BEFmate_C6low; BEFmate_C6pio; BEFmate_C6upp; BEFmate_I10low; BEFmate_I10pio; BEFmate_I10upp; BEFmate_I11low; BEFmate_I11pio; BEFmate_I11upp; BEFmate_I12low; BEFmate_I12pio; BEFmate_I12upp; BEFmate_I1low; BEFmate_I1pio; BEFmate_I1upp; BEFmate_I2low; BEFmate_I2pio; BEFmate_I2upp; BEFmate_I3low; BEFmate_I3pio; BEFmate_I3upp; BEFmate_I4low; BEFmate_I4pio; BEFmate_I4upp; BEFmate_I5low; BEFmate_I5pio; BEFmate_I5upp; BEFmate_I6low; BEFmate_I6pio; BEFmate_I6upp; BEFmate_I7low; BEFmate_I7pio; BEFmate_I7upp; BEFmate_I8low; BEFmate_I8pio; BEFmate_I8upp; BEFmate_I9low; BEFmate_I9pio; BEFmate_I9upp; BEFmate_S10low; BEFmate_S10pio; BEFmate_S10upp; BEFmate_S11low; BEFmate_S11pio; BEFmate_S11upp; BEFmate_S12low; BEFmate_S12pio; BEFmate_S12upp; BEFmate_S1low; BEFmate_S1pio; BEFmate_S1upp; BEFmate_S2low; BEFmate_S2pio; BEFmate_S2upp; BEFmate_S3low; BEFmate_S3pio; BEFmate_S3upp; BEFmate_S4low; BEFmate_S4pio; BEFmate_S4upp; BEFmate_S5low; BEFmate_S5pio; BEFmate_S5upp; BEFmate_S6low; BEFmate_S6pio; BEFmate_S6upp; BEFmate_S7low; BEFmate_S7pio; BEFmate_S7upp; BEFmate_S8low; BEFmate_S8pio; BEFmate_S8upp; BEFmate_S9low; BEFmate_S9pio; BEFmate_S9upp; BEFmate_Watt; biodiversity - ecosystem functioning; DATE/TIME; DEPTH, sediment/rock; Depth, sediment/rock, bottom/maximum; Depth, sediment/rock, top/minimum; DynaCom; ELEVATION; Event label; experimental islands; FOR 2716: Spatial community ecology in highly dynamic landscapes: from island biogeography to metaecosystems; LATITUDE; LONGITUDE; Metacommunity; MULT; Multiple investigations; off Spiekeroog, German Bight, North Sea; Plot; pore-water salinity; Portable 2-channel multimeter, Hach, HQ40D; Quality flag, salinity; Salinity, porewater; salt marsh; Sample ID; Sampling date; SCO; Spiekeroog; Spiekeroog Coastal Observatory
    Type: Dataset
    Format: text/tab-separated-values, 7259 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 40
    facet.materialart.
    Unknown
    Seismic processed data (Ocean Bottom Seismometer working area dataset) of RV POSEIDON during cruise POS515, Venere mud volcano, Calabrian Arc, Mediterranean Sea (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: The data comprise processed active-source seismic data acquired with ocean bottom seismometer (OBS) data. The data were collected at Venere mud volcano during expedition POS515 with the research vessel POSEIDON (Riedel et al., 2017) in the Mediterranean Sea, Calabrian Arc offshore southern Italy (map under further details). The entire data set consists of 11 OBS stations. Seismic data were shot across the OBS along seven profiles. Each OBS consist of 4 channels (channel 1: hydrophone; channel 2: horizontal component 1; channel 3: horizontal component 2; channel 4: vertical component).
    Keywords: Binary Object; Binary Object (File Size); Binary Object (MD5 Hash); Binary Object (Media Type); Calabrian accretionary prism; CALVADOS; Event label; File content; Mediterranean Sea, Eastern Basin; mud volcano; OBS; OBS V01; OBS V02; OBS V03; OBS V04; OBS V05; OBS V06; OBS V07; OBS V08; OBS V09; OBS V11; OBS V12; Ocean bottom seismometer; POS515; POS515_10-1; POS515_12-1; POS515_13-1; POS515_2-1; POS515_3-1; POS515_4-1; POS515_5-1; POS515_6-1; POS515_7-1; POS515_8-1; POS515_9-1; Poseidon
    Type: Dataset
    Format: text/tab-separated-values, 616 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 41
    facet.materialart.
    Unknown
    Continous seismic raw data (Ocean Bottom Seismometer working area dataset) of RV POSEIDON during cruise POS515, Venere mud volcano, Calabrian Arc, Mediterranean Sea (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: The data comprise continuous records of seismic raw data acquired with ocean bottom seismometers (OBS). The data were collected at Venere mud volcano during expedition POS515 with the research vessel POSEIDON (Riedel et al., 2017) in the Mediterranean Sea, Calabrian Arc offshore southern Italy (map under further details). The entire data set consists of 11 OBS stations. Each OBS consist of 4 channels (channel 1: hydrophone; channel 2: horizontal component 1; channel 3: horizontal component 2; channel 4: vertical component). Data are not corrected for clock-drift. Data format is Passcal-SEGY. Data are accessible using the seismological software tools provided by EarthScope: https://www.passcal.nmt.edu/content/software-resources. The data were recorded using: HTI-04_PCA_ULF hydrophones from High Tech Inc., Short-period 4.5 Hz geophones and three-component seismometers (K/MT-210 manufactured by KUM GmbH). The recording device is an MBS recorder of SEND GmbH.
    Keywords: Binary Object; Binary Object (File Size); Binary Object (MD5 Hash); Binary Object (Media Type); Calabrian accretionary prism; CALVADOS; Event label; File content; Mediterranean Sea, Eastern Basin; mud volcano; OBS; OBS V01; OBS V02; OBS V03; OBS V04; OBS V05; OBS V06; OBS V07; OBS V08; OBS V09; OBS V11; OBS V12; ocean bottom seismometer; Ocean bottom seismometer; POS515; POS515_10-1; POS515_12-1; POS515_13-1; POS515_2-1; POS515_3-1; POS515_4-1; POS515_5-1; POS515_6-1; POS515_7-1; POS515_8-1; POS515_9-1; Poseidon
    Type: Dataset
    Format: text/tab-separated-values, 88 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 42
    facet.materialart.
    Unknown
    2D multichannel seismic reflection processed data (GI Gun working area dataset) of RV POSEIDON during cruise POS515, Venere mud volcano, Calabrian Arc, Mediterranean Sea (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: The data set constitutes a total of 84 2D multichannel seismic lines acquired in parallel 2D mode across Venere mud volcano. An additional 7 lines were acquired across a grid of 12 OBS deployed in the region. Data are fully processed and migrated (in time). Main processing steps include: Geometry definition, Common-Mid-(CMP) Point sorting, Normal-Moveout-Corrention (NMO) using an average velocity function (extracted from ocean-bottom-seismometer data), Stacking and FK-Migration (in time). Data processing was completed using the VISTA processing package, provided by Schlumberger to GEOMAR. Data acquisition for this survey started with profile P1001 on June 21, 2017 (at 17:30, CET) at a position of 38°34.42'N, 17°08.66'E. Data acquisition for this survey ended with profile P1102 on July 2, 2017 (at 04:00, CET) at a position of 38°40.39'N, 17°07.97'E.
    Keywords: Binary Object; Binary Object (File Size); Binary Object (Media Type); Calabrian accretionary prism; CALVADOS; File content; Mediterranean Sea, Eastern Basin; multichannel reflection seismics; POS515; POS515_14-1; POS515_15-1; POS515_16-1; POS515_17-1; POS515_18-1; POS515_19-1; POS515_20-1; Poseidon; SEIS; Seismic; Seismic reflection profile; SEISREFL
    Type: Dataset
    Format: text/tab-separated-values, 182 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 43
    facet.materialart.
    Unknown
    Seismic processed data (Ocean Bottom Seismometer working area dataset) of RV POSEIDON during cruise POS515, Poseidon mud volcano, Calabrian Arc, Mediterranean Sea (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: The data comprise processed active-source seismic data acquired with ocean bottom seismometers (OBS). The data were collected at Poseidon mud volcano chain during expedition POS515 with the research vessel POSEIDON (Riedel et al., 2017) in the Mediterranean Sea, Calabrian Arc, offshore southern Italy. The entire data set consists of 12 OBS stations. Seismic data were shot across the OBS along 14 2D profiles. Each OBS consist of 4 channels (channel 1: hydrophone; channel 2: horizontal component 1; channel 3: horizontal component 2; channel 4: vertical component).
    Keywords: Binary Object; Binary Object (File Size); Binary Object (MD5 Hash); Binary Object (Media Type); Calabrian accretionary prism; CALVADOS; Event label; File content; Mediterranean Sea, Eastern Basin; mud volcano; OBS; OBS P01; OBS P02; OBS P03; OBS P04; OBS P05; OBS P06; OBS P07; OBS P08; OBS P09; OBS P10; OBS P11; OBS P12; Ocean bottom seismometer; POS515; POS515_33-1; POS515_34-1; POS515_35-1; POS515_36-1; POS515_37-1; POS515_38-1; POS515_39-1; POS515_40-1; POS515_41-1; POS515_42-1; POS515_43-1; POS515_44-1; Poseidon
    Type: Dataset
    Format: text/tab-separated-values, 1216 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 44
    facet.materialart.
    Unknown
    Mg/Ca ratios measured by Electron Probe Microanalyzer in shells of the planktic foraminifer Morozovella velascoensis from ODP Site 865 (Central Pacific) across the PETM (~56 Ma) (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: Foraminiferal shells of the species M. velascoensis from sediments spanning ~650 ka across the PETM section of ODP Site 865, Central Pacific, were embedded in epoxy and polished to midsection. Suitable, well-preserved domains for in-situ analysis were identified by scanning electron microscopy. In-situ measurements of the Mg/Ca ratios were performed using a CAMECA SX-51 electron microprobe housed in the Cameron and Wilcox Microbeam Laboratory at the UW-Madison Department of Geoscience. Depending on the number of suitable targets for analysis, between one and seven Mg/Ca measurements were performed for each shell. Fully quantitative microanalyses (mineral standards, background subtracted, and matrix corrected) were performed using Probe for EPMA software (Probe Software, Inc.). The natural carbonate standards Delight Dolomite and Callender Calcite were used for Mg and Ca, respectively. Mg-K alpha X-rays were measured on two spectrometers and aggregated. Carbon was calculated within the matrix correction, being allocated as one atom of carbon to 3 atoms of oxygen, and oxygen by stoichiometry to the cations measured, thus analytical totals of 98 – 100.5 wt. % are a measure of accuracy. Analyses featuring analytical totals below 98 wt. % or above 100.5 wt. % were excluded from the data set.
    Keywords: 143-865C; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Electron microprobe, CAMECA, SX-51; EPMA; Event label; Foraminifera; Hole; Identification; Interval; Joides Resolution; Leg143; Mg/Ca; Morozovella velascoensis, Magnesium/Calcium ratio; North Pacific Ocean; PETM; Sample code/label; Section; Size fraction
    Type: Dataset
    Format: text/tab-separated-values, 371 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 45
    facet.materialart.
    Unknown
    Oxygen isotope and Sr/Ca ratio of fossil coral BON-1-AII from Bonaire (2017)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: Age, 230Th/U Thorium-Uranium; BON-1-AII; CaribClim_Coral_2006; Center for Marine Environmental Sciences; Hand drill; HDRILL; ICP-OES (Agilent 720 Simultan); precision 1%; Internal coral chronology; MARUM; Mass spectrometer Finnigan MAT 251; Montastraea annularis species complex, Strontium/Calcium ratio; Montastraea annularis species complex, δ18O; Southern Caribbean Sea, Bonaire
    Type: Dataset
    Format: text/tab-separated-values, 723 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 46
    facet.materialart.
    Unknown
    Oxygen isotope and Sr/Ca ratio of fossil coral BON-1-BI from Bonaire (2017)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: Age, 230Th/U Thorium-Uranium; BON-1-BI; CaribClim_Coral_2006; Center for Marine Environmental Sciences; Hand drill; HDRILL; ICP-OES (Agilent 720 Simultan); precision 1%; Internal coral chronology; MARUM; Mass spectrometer Finnigan MAT 251; Montastraea annularis species complex, Strontium/Calcium ratio; Montastraea annularis species complex, δ18O; Southern Caribbean Sea, Bonaire
    Type: Dataset
    Format: text/tab-separated-values, 1145 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 47
    facet.materialart.
    Unknown
    Oxygen isotope and Sr/Ca ratio of fossil coral BON-3-B from Bonaire (2017)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: Age, 230Th/U Thorium-Uranium; BON-3-B; CaribClim_Coral_2006; Center for Marine Environmental Sciences; Hand drill; HDRILL; ICP-OES (Agilent 720 Simultan); precision 1%; Internal coral chronology; MARUM; Mass spectrometer Finnigan MAT 251; Montastraea annularis species complex, Strontium/Calcium ratio; Montastraea annularis species complex, δ18O; Southern Caribbean Sea, Bonaire
    Type: Dataset
    Format: text/tab-separated-values, 613 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 48
    facet.materialart.
    Unknown
    Oxygen isotope and Sr/Ca ratio of fossil coral BON-3-DII from Bonaire (2017)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: Age, 230Th/U Thorium-Uranium; BON-3-DII; CaribClim_Coral_2006; Center for Marine Environmental Sciences; Hand drill; HDRILL; ICP-OES (Agilent 720 Simultan); precision 1%; Internal coral chronology; MARUM; Mass spectrometer Finnigan MAT 251; Montastraea annularis species complex, Strontium/Calcium ratio; Montastraea annularis species complex, δ18O; Southern Caribbean Sea, Bonaire
    Type: Dataset
    Format: text/tab-separated-values, 894 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 49
    facet.materialart.
    Unknown
    Oxygen isotope and Sr/Ca ratio of fossil coral BON-9-E from Bonaire (2017)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: Age, 230Th/U Thorium-Uranium; BON-9-E; CaribClim_Coral_2006; Center for Marine Environmental Sciences; Hand drill; HDRILL; ICP-OES (Agilent 720 Simultan); precision 1%; Internal coral chronology; MARUM; Mass spectrometer Finnigan MAT 251; Montastraea annularis species complex, Strontium/Calcium ratio; Montastraea annularis species complex, δ18O; Southern Caribbean Sea, Bonaire
    Type: Dataset
    Format: text/tab-separated-values, 724 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 50
    facet.materialart.
    Unknown
    Oxygen isotope and Sr/Ca ratio of fossil coral BON-3-F-C from Bonaire (2017)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: Age, 230Th/U Thorium-Uranium; BON-3-F-C; CaribClim_Coral_2006; Center for Marine Environmental Sciences; Hand drill; HDRILL; ICP-OES (Agilent 720 Simultan); precision 1%; Internal coral chronology; MARUM; Mass spectrometer Finnigan MAT 251; Montastraea annularis species complex, Strontium/Calcium ratio; Montastraea annularis species complex, δ18O; Southern Caribbean Sea, Bonaire
    Type: Dataset
    Format: text/tab-separated-values, 409 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 51
    facet.materialart.
    Unknown
    Oxygen isotope and Sr/Ca ratio of fossil coral BON-3-F-B from Bonaire (2017)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: Age, 230Th/U Thorium-Uranium; BON-3-F-B; CaribClim_Coral_2006; Center for Marine Environmental Sciences; Hand drill; HDRILL; ICP-OES (Agilent 720 Simultan); precision 1%; Internal coral chronology; MARUM; Mass spectrometer Finnigan MAT 251; Montastraea annularis species complex, Strontium/Calcium ratio; Montastraea annularis species complex, δ18O; Southern Caribbean Sea, Bonaire
    Type: Dataset
    Format: text/tab-separated-values, 502 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 52
    facet.materialart.
    Unknown
    Continous seismic raw data (Ocean Bottom Seismometer working area dataset) of RV POSEIDON during cruise POS515, Poseidon mud volcano chain, Calabrian Arc, Mediterranean Sea (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: The data comprise continuous records of seismic raw data acquired with ocean bottom seismometers (OBS). The data were collected at Poseidon mud volcano chain during expedition POS515 with the research vessel POSEIDON (Riedel et al., 2017) in the Mediterranean Sea, Calabrian Arc offshore southern Italy (map under further details). The entire data set consists of 12 OBS stations. Each OBS consist of 4 channels (channel 1: hydrophone; channel 2: horizontal component 1; channel 3: horizontal component 2; channel 4: vertical component). Data are not corrected for clock-drift. Data format is Passcal-SEGY. Data are accessible using the seismological software tools provided by EarthScope: https://www.passcal.nmt.edu/content/software-resources. The data were recorded using: HTI-04_PCA_ULF hydrophones from High Tech Inc., Short-period 4.5 Hz geophones and Three-component seismometers (K/MT-210 manufactured by KUM GmbH). The recording device is an MBS recorder of SEND GmbH
    Keywords: Binary Object; Binary Object (File Size); Binary Object (MD5 Hash); Binary Object (Media Type); Calabrian accretionary prism; CALVADOS; Event label; File content; Mediterranean Sea, Eastern Basin; mud volcano; OBS; OBS P01; OBS P02; OBS P03; OBS P04; OBS P05; OBS P06; OBS P07; OBS P08; OBS P09; OBS P10; OBS P11; OBS P12; Ocean bottom seismometer; POS515; POS515_33-1; POS515_34-1; POS515_35-1; POS515_36-1; POS515_37-1; POS515_38-1; POS515_39-1; POS515_40-1; POS515_41-1; POS515_42-1; POS515_43-1; POS515_44-1; Poseidon
    Type: Dataset
    Format: text/tab-separated-values, 96 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 53
    facet.materialart.
    Unknown
    (Table 1) Regional mass trends of the Greenland ice sheet for the common time interval October 2003-2009 (2012)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: ANU* corrected GRACE satellite data, CSR-RL04; Area; Area/locality; Event label; Greenland; Greenland_A; Greenland_B; Greenland_C; Greenland_D; Greenland_E; Greenland_F; Greenland_G; Greenland_Ice; ICE-5G* corrected GRACE satellite data, CSR-RL04; ICESat satellite data, ICE-5G corrected; Mass balance; SAT; Satellite remote sensing; Standard deviation; Surface mass balance and ice discharge SMB-D; Time coverage
    Type: Dataset
    Format: text/tab-separated-values, 88 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 54
    facet.materialart.
    Unknown
    (Table 2) Regional mass trends and acceleration of the Greenland ice sheet for the common time interval August 2002-2010 (2012)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: Acceleration; Area; Area/locality; Event label; Greenland; Greenland_A; Greenland_B; Greenland_C; Greenland_D; Greenland_E; Greenland_F; Greenland_G; Greenland_Ice; ICE-5G* corrected GRACE satellite data, CSR-RL04; Mass balance; SAT; Satellite remote sensing; Standard deviation; Surface mass balance and ice discharge SMB-D; Time coverage
    Type: Dataset
    Format: text/tab-separated-values, 104 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 55
    facet.materialart.
    Unknown
    Sr-Nd-Hf isotopes, REEs and particle size of dust collected across the Atlantic Ocean (Other version) (2018)
    PANGAEA
    In:  Royal Netherlands Institute for Sea Research, Texel
    Details
    Publication Date: 2024-06-01
    Type: Dataset
    Format: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, 68.9 kBytes
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 56
    facet.materialart.
    Unknown
    Growth rate of Bolinopsis mikado determined experimentally (2014)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: B_mikado_GROWTHEXP; Biomass as carbon per individual; Growth rate as carbon per carbon biomass; Growth rate as carbon per individual; Taxon/taxa; Treatment: temperature; Uniform resource locator/link to reference; Water sample; WS
    Type: Dataset
    Format: text/tab-separated-values, 96 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 57
    facet.materialart.
    Unknown
    (Table 1) Activity ratios and respective uncertainties for the five fossil AQB corals (2018)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: Aqaba96_00; AQB-1A; AQB-1H; AQB-1K; AQB-3A; AQB-7G; Center for Marine Environmental Sciences; DRILL; Drilling/drill rig; Event label; MARUM; Northern Gulf of Aqaba (Aqaba/Jordan, Red Sea); Protactinium-231/Thorium-230 activity ratio; Protactinium-231/Thorium-230 activity ratio, standard error; Protactinium-231/Uranium-235 activity ratio; Protactinium-231/Uranium-235 activity ratio, standard error; Radium-226/Thorium-230 activity ratio; Radium-226/Thorium-230 activity ratio, standard error; Radium-226/Uranium-238 activity ratio; Radium-226/Uranium-238 activity ratio, standard error; Sample code/label; Sampling/drilling corals; Thorium-230/Uranium-238 activity ratio; Thorium-230/Uranium-238 activity ratio, standard error; Uranium-234/Uranium-238 activity ratio; Uranium-234/Uranium-238 activity ratio, standard error
    Type: Dataset
    Format: text/tab-separated-values, 312 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 58
    facet.materialart.
    Unknown
    (Table S1) Conventional 230Th/U, 231Pa/U and 231Pa/230Th ages, d234Ui values and 238U and 232Th concentrations (2018)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: Age, dated; Age, error; Aqaba96_00; AQB-1A; AQB-1H; AQB-1K; AQB-3A; AQB-7G; Center for Marine Environmental Sciences; DRILL; Drilling/drill rig; Event label; MARUM; Northern Gulf of Aqaba (Aqaba/Jordan, Red Sea); Sample code/label; Sampling/drilling corals; Thorium-232; Uranium-238; δ234 Uranium; δ234 Uranium, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 297 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 59
    facet.materialart.
    Unknown
    Thorium / uranium dating of stalagmite PR-LA-1 (Cueva Larga, Puerto Rico) (2020)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: Age, 230Th/U Thorium-Uranium; Age, dated; Age, dated standard deviation; Comment; Corrected, using the decay constants by Cheng et al. (2000); Cueva Larga, Puerto Rico; DISTANCE; GEOTRACES; Global marine biogeochemical cycles of trace elements and their isotopes; Laboratory code/label; PR-LA-1; Sample ID; speleothem; Speleothem sample; SPS; Thorium-230/Thorium-232 activity ratio; Thorium-230/Thorium-232 activity ratio, standard deviation; Thorium-230/Uranium-238 activity ratio; Thorium-230/Uranium-238 activity ratio, standard deviation; Thorium-232; Thorium-232, standard deviation; Uranium-234/Uranium-238 activity ratio; Uranium-234/Uranium-238 activity ratio, standard deviation; Uranium-234/Uranium-238 activity ratio (0); Uranium-234/Uranium-238 activity ratio (0), standard deviation; Uranium-238; Uranium-238, standard deviation; Uranium-thorium isotope dilution measurement by MC-ICPMS
    Type: Dataset
    Format: text/tab-separated-values, 1289 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 60
    facet.materialart.
    Unknown
    Geochemistry of tephra from sediment core IZN19-09 from Lake Iznik (NW Turkey) (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: The occurrence of previously geochemically identified tephra allowed refinement of the age-depth model by comparison with previously established volcanic eruption history (Roeser et al., 2012). Tephra layers were polished on thin sections and the glass shards were geochemically characterized using a JEOL JXA-8230 Electron Probe X-ray Micro Analyzer (EMPA; ISTerre Laboratory, University Grenoble Alpes) equipped with 5 wavelength dispersive spectrometers (WDS) and one energy dispersive spectrometer (EDS) detector. The measurements used the following conditions: 15 kV voltage, 2 nA beam current, and 5 to 7 µm beam size. For standardization, MPI-DING glasses (StHs6/80-G, GOR132-G) (http://georem.mpch-mainz.gwdg.de; Jochum et al., 2000), natural minerals, and synthetic oxides were used. Two glasses, Atho-G (http://georem.mpch-mainz.gwdg.de; Jochum et al., 2000) and KE-12 (Metrich & Rutherford, 1992), were analyzed together with the samples to verify analytical accuracy and to exclude the loss of alkalis. Analyses of glass shards yielding a total oxide sum less than 96% or suggesting mineral impurities were not included in this study. Analytical data were normalized to 100% total oxide values to enable comparison.
    Keywords: Aluminium oxide; BASILIZNIK-SECRETS; Calculated; Core; Electron probe microanalyzer (EPMA), JEOL JXA 8230; EPMA; GLASS; Hammering-push core, UWITEC PILOTE 63; HPUWI63; Iron oxide, FeO; IZN19-09; Iznik; IZNIK_04_2019; Iznik Lake, Turkey; lake; Potassium oxide; Sample comment; Secret Archives of the Basilica of Nicea provided by the Sediments of Iznik Lake; sediment; sediment core data; Silicon dioxide; Sodium oxide; Sum; Turkey; volcanic eruption
    Type: Dataset
    Format: text/tab-separated-values, 344 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 61
    facet.materialart.
    Unknown
    Calibrated international standards including ATHO-G, T1-G, and VG-568 (USNM 72854) (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: Aluminium oxide; Calcium oxide; Chlorine; Expedition 374; Integrated Ocean Drilling Program / International Ocean Discovery Program; International Ocean Discovery Program (IODP); IODP; Iron oxide, FeO; Magnesium oxide; Manganese oxide; Marie Byrd Land; Potassium oxide; Ross Sea; Sample ID; Silicon dioxide; Site U1524; Sodium oxide; Tephra; tephrochronology; Titanium dioxide; Total
    Type: Dataset
    Format: text/tab-separated-values, 381 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 62
    facet.materialart.
    Unknown
    Stable isotopes in ostracod shells of core NC08/01 (Table 3) (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: AGE; DEPTH, sediment/rock; KIEL-IV-Carbonate Device connected to a Finnigan MAT253 mass spectrometer; Lake Nam Co, Tibetan Plateau; Leucocytherella sinensis, δ13C; Leucocytherella sinensis, δ18O; NC_08/01; Ostracoda; Paleoclimate; Paleolimnology; PC; Piston corer; Rare earth elements; Stable carbon and oxygen isotopes; trace elements ratio
    Type: Dataset
    Format: text/tab-separated-values, 228 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 63
    facet.materialart.
    Unknown
    Stable isotopes in bulk sediment TAN12-2 (Table 4) (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: AGE; DEPTH, sediment/rock; Finnigan GasBench-II connected to a DELTAplus XL isotope ratio mass spectrometer (IRMS); GC; Gravity corer; Ostracoda; Paleoclimate; Paleolimnology; Rare earth elements; Stable carbon and oxygen isotopes; TAN12-2; trace elements ratio; δ13C, bulk carbonate; δ18O, bulk carbonate
    Type: Dataset
    Format: text/tab-separated-values, 652 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 64
    facet.materialart.
    Unknown
    Geochemistry of tephra from sediment core IZN19-15 from Lake Iznik (NW Turkey) (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: The occurrence of previously geochemically identified tephra allowed refinement of the age-depth model by comparison with previously established volcanic eruption history (Roeser et al., 2012). Tephra layers were polished on thin sections and the glass shards were geochemically characterized using a JEOL JXA-8230 Electron Probe X-ray Micro Analyzer (EMPA; ISTerre Laboratory, University Grenoble Alpes) equipped with 5 wavelength dispersive spectrometers (WDS) and one energy dispersive spectrometer (EDS) detector. The measurements used the following conditions: 15 kV voltage, 2 nA beam current, and 5 to 7 µm beam size. For standardization, MPI-DING glasses (StHs6/80-G, GOR132-G) (http://georem.mpch-mainz.gwdg.de; Jochum et al., 2000), natural minerals, and synthetic oxides were used. Two glasses, Atho-G (http://georem.mpch-mainz.gwdg.de; Jochum et al., 2000) and KE-12 (Metrich & Rutherford, 1992), were analyzed together with the samples to verify analytical accuracy and to exclude the loss of alkalis. Analyses of glass shards yielding a total oxide sum less than 96% or suggesting mineral impurities were not included in this study. Analytical data were normalized to 100% total oxide values to enable comparison.
    Keywords: Aluminium oxide; BASILIZNIK-SECRETS; Calculated; Core; Electron probe microanalyzer (EPMA), JEOL JXA 8230; EPMA; GLASS; Hammering-push core, UWITEC PILOTE 63; HPUWI63; Iron oxide, FeO; IZN19-15; Iznik; IZNIK_04_2019; Iznik Lake, Turkey; lake; Potassium oxide; Sample comment; Secret Archives of the Basilica of Nicea provided by the Sediments of Iznik Lake; sediment; sediment core data; Silicon dioxide; Sodium oxide; Sum; Turkey; volcanic eruption
    Type: Dataset
    Format: text/tab-separated-values, 256 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 65
    facet.materialart.
    Unknown
    Trace elements in ostracod valves of NC08/01 from Nam Co (Table 1) (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: AGE; DEPTH, sediment/rock; ICP–MS Thermo Element 2 combined with a 213 nm (UP-213) Nd:YAG laser ablation system from New Wave; Lake Nam Co, Tibetan Plateau; Leucocytherella sinensis, Barium/Calcium ratio; Leucocytherella sinensis, heavy rare-earth elements (Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu)/Calcium ratio; Leucocytherella sinensis, Iron/Calcium ratio; Leucocytherella sinensis, light rare-earth elements (La, Ce, Pr, Nd, Sm, Eu)/Calcium ratio; Leucocytherella sinensis, Magnesium/Calcium ratio; Leucocytherella sinensis, Manganese/Calcium ratio; Leucocytherella sinensis, rare-earth elements/Calcium ratio; Leucocytherella sinensis, Strontium/Calcium ratio; Leucocytherella sinensis, Uranium/Calcium ratio; NC_08/01; Ostracoda; Paleoclimate; Paleolimnology; PC; Piston corer; Rare earth elements; Stable carbon and oxygen isotopes; trace elements ratio
    Type: Dataset
    Format: text/tab-separated-values, 1593 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 66
    facet.materialart.
    Unknown
    Trace elements in ostracod valves of TAN12-2 from Tangra Yumco (Table 2) (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Keywords: AGE; DEPTH, sediment/rock; GC; Gravity corer; ICP–MS Thermo Element 2 combined with a 213 nm (UP-213) Nd:YAG laser ablation system from New Wave; Leucocytherella sinensis, Barium/Calcium ratio; Leucocytherella sinensis, heavy rare-earth elements (Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu)/Calcium ratio; Leucocytherella sinensis, Iron/Calcium ratio; Leucocytherella sinensis, light rare-earth elements (La, Ce, Pr, Nd, Sm, Eu)/Calcium ratio; Leucocytherella sinensis, Magnesium/Calcium ratio; Leucocytherella sinensis, Manganese/Calcium ratio; Leucocytherella sinensis, rare-earth elements/Calcium ratio; Leucocytherella sinensis, Strontium/Calcium ratio; Leucocytherella sinensis, Uranium/Calcium ratio; Ostracoda; Paleoclimate; Paleolimnology; Rare earth elements; Stable carbon and oxygen isotopes; TAN12-2; trace elements ratio
    Type: Dataset
    Format: text/tab-separated-values, 1215 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 67
    facet.materialart.
    Unknown
    Pore water data of sediment core YC22_MR_7 off Herschel island (Yukon Coast 2022) (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: In July 2022 within the framework of an Alfred-Wegener-Institute-managed expedition and the Nunataryuk project, sediment core YC22_MR_7 was taken off the coast of Herschel Island, Canada, using a hand corer. Data sets were obtained to investigate carbon feedback from the sediments to the water column and atmosphere, using DIC concentrations and isotopic values. The local sediments are supplied primarily by organic carbon previously stored in adjacent permafrost soils (biomarker and bulk data), which erode and redeposit quickly (age model) on the ocean floor. Porewater was extracted from the cores using rhizomes and quantified as described in Oni et al., (2015). Dissolved inorganic carbon isotope signatures were determined as CO2 for 13C (Torres et al., 2005) and 14C (Mollenhauer et al., 2021).
    Keywords: Ammonium; Ammonium, standard deviation; AWI Arctic Land Expedition; CA-Land_2022_YukonCoast; CA-Land_2022_YukonCoast_MR_7; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Chloride; Chloride, standard deviation; DEPTH, sediment/rock; Fraction modern carbon; Fraction modern carbon, standard deviation; Hand corer; HCOR; Herschel Island, Yukon Territory, Canada; Iron; Iron, standard deviation; Manganese; Manganese, standard deviation; Nitrate; Nitrate, standard deviation; Nitrite; NUNATARYUK; NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation; pH; Phosphate; Phosphate, standard deviation; Sample ID; Silicate; Silicate, standard deviation; Sulfate; Sulfate, standard deviation; YC22_MR_7; Yukon Coast 2022; δ13C, dissolved inorganic carbon, standard deviation; δ18O, dissolved inorganic carbon
    Type: Dataset
    Format: text/tab-separated-values, 269 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 68
    facet.materialart.
    Unknown
    Pore water data of sediment core YC22_MR_8 off Herschel island (Yukon Coast 2022) (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: In July 2022 within the framework of an Alfred-Wegener-Institute-managed expedition and the Nunataryuk project, sediment core YC22_MR_8 was taken off the coast of Herschel Island, Canada, using a hand corer. Data sets were obtained to investigate carbon feedback from the sediments to the water column and atmosphere, using DIC concentrations and isotopic values. The local sediments are supplied primarily by organic carbon previously stored in adjacent permafrost soils (biomarker and bulk data), which erode and redeposit quickly (age model) on the ocean floor. Porewater was extracted from the cores using rhizomes and quantified as described in Oni et al., (2015). Dissolved inorganic carbon isotope signatures were determined as CO2 for 13C (Torres et al., 2005) and 14C (Mollenhauer et al., 2021).
    Keywords: AWI Arctic Land Expedition; CA-Land_2022_YukonCoast; CA-Land_2022_YukonCoast_MR_8; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Chloride; Chloride, standard deviation; DEPTH, sediment/rock; Fraction modern carbon; Fraction modern carbon, standard deviation; Hand corer; HCOR; Herschel Island, Yukon Territory, Canada; Iron; Iron, standard deviation; Manganese; Manganese, standard deviation; NUNATARYUK; NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation; Sample ID; YC22_MR_8; Yukon Coast 2022; δ13C, dissolved inorganic carbon, standard deviation; δ18O, dissolved inorganic carbon
    Type: Dataset
    Format: text/tab-separated-values, 161 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 69
    facet.materialart.
    Unknown
    Age model of sediment core YC22_MR_7 off Herschel island (Yukon Coast 2022) (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: In July 2022 within the framework of an Alfred-Wegener-Institute-managed expedition and the Nunataryuk project, sediment core YC22_MR_7 was taken off the coast of Herschel Island, Canada, using a hand corer. Data sets were obtained to investigate carbon feedback from the sediments to the water column and atmosphere, using DIC concentrations and isotopic values. The local sediments are supplied primarily by organic carbon previously stored in adjacent permafrost soils (biomarker and bulk data), which erode and redeposit quickly (age model) on the ocean floor. Sedimentary age model of core YC22_MR_7 assuming Constant Flux: Constant Sedimentation (CFCS) model (Appleby, 2001), based on data obtained with a HPGe gamma detector.
    Keywords: Actinium-228; Actinium-228, error; Age; Age, error; Americium-241; AWI Arctic Land Expedition; Bismuth-214; Bismuth-214, error; Caesium-137; Caesium-137, error; CA-Land_2022_YukonCoast; CA-Land_2022_YukonCoast_MR_7; Calculated; Constant Flux - Constant Sedimentation (CFCS) dating model; Constant Initial Concentration (CIC) dating model; DEPTH, sediment/rock; Hand corer; HCOR; Herschel Island, Yukon Territory, Canada; High-purity Germanium (HPGe) detector; Lead-210; Lead-210, error; Lead-210, supported; Lead-210, supported, error; Lead-210 excess; Lead-210 excess, error; Lead-214; Lead-214, error; NUNATARYUK; NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation; YC22_MR_7; Yukon Coast 2022
    Type: Dataset
    Format: text/tab-separated-values, 503 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 70
    facet.materialart.
    Unknown
    Pore water data of sediment core YC22_MR_6 off Herschel island (Yukon Coast 2022) (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: In July 2022 within the framework of an Alfred-Wegener-Institute-managed expedition and the Nunataryuk project, sediment core YC22_MR_6 was taken off the coast of Herschel Island, Canada, using a hand corer. Data sets were obtained to investigate carbon feedback from the sediments to the water column and atmosphere, using DIC concentrations and isotopic values. The local sediments are supplied primarily by organic carbon previously stored in adjacent permafrost soils (biomarker and bulk data), which erode and redeposit quickly (age model) on the ocean floor. Porewater was extracted from the cores using rhizomes and quantified as described in Oni et al., (2015). Dissolved inorganic carbon isotope signatures were determined as CO2 for 13C (Torres et al., 2005) and 14C (Mollenhauer et al., 2021).
    Keywords: Ammonium; Ammonium, standard deviation; AWI Arctic Land Expedition; CA-Land_2022_YukonCoast; CA-Land_2022_YukonCoast_MR_6; Carbon, inorganic, dissolved; Chloride; Chloride, standard deviation; DEPTH, sediment/rock; Hand corer; HCOR; Herschel Island, Yukon Territory, Canada; Iron; Iron, standard deviation; Manganese; Manganese, standard deviation; Nitrate; Nitrate, standard deviation; Nitrite; NUNATARYUK; NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation; pH; Phosphate; Phosphate, standard deviation; Sample ID; Silicate; Silicate, standard deviation; Sulfate; Sulfate, standard deviation; YC22_MR_6; Yukon Coast 2022
    Type: Dataset
    Format: text/tab-separated-values, 179 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 71
    facet.materialart.
    Unknown
    Electron micro probe analyser (EMPA) glass standards measurements associated with glass geochemistry data of Lateglacial cryptotephra from the International Continental Scientific Drilling Program (ICDP) Dead Sea core (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: This dataset provides the data for the four glass standards used for monitoring of the precision and accuracy of electron probe microanalyses (EPMA) during analytical runs of cryptotephra glass-shards in the International Continental Scientific Drilling Program (ICDP) sediment core 5017-1 (see first dataset). For each EPMA run, all four glass standards were measured. The major-element composition of the glass standards was measured using a JEOL JXA-8230 electron microprobe at GFZ Potsdam, Germany (15 kV, 5-10 nA, 5-10 µm beam size). Instrumental calibration used natural mineral standards. Glass standards were Lipari obsidian (Hunt & Hill 1996, doi:10.1016/1040-6182(95)00088-7; Kuehn et al. 2011, doi:10.1016/j.quaint.2011.08.022) and MPI-Ding glasses ATHO-G, StHs-6-80-G and GOR-132-G (Jochum et al. 2006, doi:10.1029/2005GC001060).
    Keywords: Aluminium oxide; Beam current; Beam size; Calcium oxide; Chlorine; Cryptotephra; Date; Dead Sea; Dead Sea Basin, Israel; Description; DRILL; Drilling/drill rig; DSDDP_5017-1; Eastern Mediterranean; Electron Probe Microanalysis (EPMA); Fluorine; Iron oxide, FeO; Magnesium oxide; Manganese oxide; palaeoclimate; Phosphorus pentoxide; Potassium oxide; Sample ID; Silicon dioxide; Sodium oxide; Sum; tephrochronology; Titanium dioxide
    Type: Dataset
    Format: text/tab-separated-values, 216 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 72
    facet.materialart.
    Unknown
    Tie points for manual alignment of the benthic foraminiferal δ¹⁸O record at IODP Site U1541 to LR04 (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: This dataset presents user-defined tiepoints of the manual alignment of the benthic foraminiferal δ¹⁸O record at IODP Site U1541 to the benthic foraminiferal LR04 δ¹⁸O stack of Lisiecki and Raymo (2005) obtained by Middleton et al. (2024). The benthic foraminiferal δ¹⁸O record for IODP Site U1541 is based on stable isotope analyses of Cibicidoides wuellerstorfi and Cibicides kullenbergi, and was published in Middleton et al. (2024).
    Keywords: 383-U1541; AGE; COMPCORE; Composite Core; DEPTH, sediment/rock; EXP383; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution
    Type: Dataset
    Format: text/tab-separated-values, 0 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 73
    facet.materialart.
    Unknown
    Tie points between sediment core PS75/059-2 and IODP Site U1541 based on an alignment of high-resolution X-ray fluorescence (XRF) Fe intensity variations (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: This dataset presents tie points between sediment core PS75/059-2 and IODP Site U1541 based on an alignment of high-resolution X-ray fluorescence (XRF) Fe intensity variations in both cores, obtained by Middleton et al. (2024). The splicing of the two cores provides the basis for a combination of the benthic foraminiferal δ¹⁸O records for PS75/059-2 (Ullermann et al., 2016) and IODP Site U1541 (Middleton et al., 2024).
    Keywords: 383-U1541; ANT-XXVI/2; COMPCORE; Composite Core; DEPTH, sediment/rock; EXP383; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; KL; Piston corer (BGR type); Polarstern; PS75/059-2; PS75 BIPOMAC; South Pacific Ocean
    Type: Dataset
    Format: text/tab-separated-values, 0 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 74
    facet.materialart.
    Unknown
    Benthic foraminiferal δ¹⁸O alignments for IODP Site U1541 based on the tuning targets LR04, L09, CENOGRID and Probstack for the past ~3.5 Myr (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: This dataset presents benthic foraminiferal δ¹⁸O chronostratigraphies and associated uncertainties for International Ocean Discovery Program (IODP) Site U1541, based on different tuning targets including LR04 (Lisiecki and Raymo, 2005), LR09 (Lisiecki and Raymo, 2009), CENOGRID (Westerhold et al., 2020) and Probstack (Ahn et al., 2017) and based on manual versus automated tuning techniques (Middleton et al., 2024). The benthic foraminiferal δ¹⁸O record for IODP Site U1541 (54°13'S, 125°25'W) recently recovered from the central South Pacific on IODP Expedition 383 (Winckler et al., 2021) is presented for the first time in Middleton et al. (2024). It is based on stable isotope analyses of Cibicidoides wuellerstorfi and Cibicides kullenbergi (Middleton et al., 2024), and was combined with the benthic foraminiferal δ¹⁸O record of PS75/059-2 (Ullermann et al., 2016). Automated tuning is based on Hidden Markov Model (HMM)-Match-based alignments (Middleton et al., 2024) generated using the automated probabilistic HMM-Match algorithm of Lin et al. (2014). The manual tuning was generated by visual alignment of characteristic peaks and troughs of the benthic foraminiferal δ¹⁸O record of IODP Site U1541 to the benthic foraminiferal LR04 stack using the publicly available QAnalySeries software (Kotov and Pälike, 2018). The dataset provides the basis for investigating and discussing the uncertainties of benthic foraminiferal δ¹⁸O stratigraphies for conventional manual and automated tuning techniques and evaluate their impact on sedimentary age models over the past 3.5 Myr (Middleton et al., 2024).
    Keywords: 383-U1541; 383-U1541A; 383-U1541B; 383-U1541C; Age, dated; Age model; ANT-XXVI/2; Cibicidoides spp., δ18O; COMPCORE; Composite Core; Core; Data source; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; EXP383; Hidden Markov Model (HMM)-Match-based alignment to CENOGRID; Hidden Markov Model (HMM)-Match-based alignment to LR04; Hidden Markov Model (HMM)-Match-based alignment to LR09 Pacific; Hidden Markov Model (HMM)-Match-based alignment to Prob-stack; Hole; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; KL; Leg Number; Manual Alignment to LR04; Piston corer (BGR type); Polarstern; PS75/059-2; PS75 BIPOMAC; Sample code/label; Section; Section position; Site; South Pacific Ocean; Type
    Type: Dataset
    Format: text/tab-separated-values, 33741 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 75
    facet.materialart.
    Unknown
    Benthic foraminiferal δ¹⁸O alignments for ODP Site 1090 based on the tuning targets LR04, L09, CENOGRID and Probstack for the past ~2.9 Myr (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: This dataset presents benthic foraminiferal δ¹⁸O chronostratigraphies and associated uncertainties for Ocean Drilling Program (ODP) Site 1090, based on different tuning targets including LR04 (Lisiecki and Raymo, 2005), LR09 (Lisiecki and Raymo, 2009), CENOGRID (Westerhold et al., 2020) and Probstack (Ahn et al., 2017) and based on manual versus automated tuning techniques (Middleton et al., 2024). The benthic foraminiferal δ¹⁸O record at ODP Site 1090 is based on Cibicidoides wuellerstorfi and was previously published in Hodell et al. (2000) and Venz and Hodell (2002). Automated tuning is based on Hidden Markov Model (HMM)-Match-based alignments (Middleton et al., 2024) generated using the automated probabilistic HMM-Match algorithm of Lin et al. (2014). The manual alignments of ODP Site 1090 were obtained by realigning the original age model tie points (Venz and Hodell, 2002) to the benthic foraminiferal LR04 δ¹⁸O stack using the QAnalySeries software (Kotov and Pälike, 2018). The dataset provides the basis for investigating and discussing the uncertainties of benthic foraminiferal δ¹⁸O stratigraphies for conventional manual and automated tuning techniques and evaluate their impact on sedimentary age models over the past 2.9 Myr (Middleton et al., 2024).
    Keywords: 177-1090; 177-1090B; 177-1090D; 177-1090E; Age, dated; Age model; Cibicidoides spp., δ18O; COMPCORE; Composite Core; Core; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Hidden Markov Model (HMM)-Match-based alignment B to Probstack; Hidden Markov Model (HMM)-Match-based alignment to CENOGRID; Hidden Markov Model (HMM)-Match-based alignment to LR04; Hidden Markov Model (HMM)-Match-based alignment to LR09 Atlantic; Hidden Markov Model (HMM)-Match-based alignment to Prob-stack; Joides Resolution; Leg177; Leg Number; Manual Alignment to LR04; Ocean Drilling Program; ODP; PC; Piston corer; Sample code/label; Section; Section position; Site; South Atlantic Ocean; TN057-6-PC4
    Type: Dataset
    Format: text/tab-separated-values, 21310 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 76
    facet.materialart.
    Unknown
    Benthic foraminiferal δ¹⁸O alignments for ODP Site 980 and ODP Site 981 based on the tuning targets LR04, L09, CENOGRID and Probstack for the past ~1.8 Myr (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: This dataset presents benthic foraminiferal δ¹⁸O chronostratigraphies and associated uncertainties for Ocean Drilling Program (ODP) Site 980 and 981, based on different tuning targets including LR04 (Lisiecki and Raymo, 2005), LR09 (Lisiecki and Raymo, 2009), CENOGRID (Westerhold et al., 2020) and Probstack (Ahn et al., 2017) and based on manual versus automated tuning techniques (Middleton et al., 2024). The benthic foraminiferal δ¹⁸O record at ODP 980 is based on Cibicidoides wuellerstorfi and Cibicides kullenbergi, and was previously published (McManus et al., 1999; Flower et al., 2000; Oppo et al., 1998). The ODP Site 981 data were measured on benthic foraminifera of the genus Cibicidoides (Raymo et al., 2004). The benthic foraminiferal δ¹⁸O records of ODP Site 980 and 981 were spliced together at ~860 ka (Raymo et al., 2004). Automated tuning is based on Hidden Markov Model (HMM)-Match-based alignments (Middleton et al., 2024) generated using the automated probabilistic HMM-Match algorithm of Lin et al. (2014). The manual alignments of ODP Site 980/981 were obtained by realigning the original age model tie points (e.g., Raymo et al., 2004) to the benthic foraminiferal LR04 δ¹⁸O stack using the QAnalySeries software (Kotov and Pälike, 2018). The dataset provides the basis for investigating and discussing the uncertainties of benthic foraminiferal δ¹⁸O stratigraphies for conventional manual and automated tuning techniques and evaluate their impact on sedimentary age models over the past 1.8 Myr (Middleton et al., 2024).
    Keywords: 162-980; 162-981; Age, dated; Age model; Cibicidoides spp., δ18O; COMPCORE; Composite Core; DEPTH, sediment/rock; Event label; Hidden Markov Model (HMM)-Match-based alignment to CENOGRID; Hidden Markov Model (HMM)-Match-based alignment to LR04; Hidden Markov Model (HMM)-Match-based alignment to LR09 Atlantic; Hidden Markov Model (HMM)-Match-based alignment to Prob-stack; Joides Resolution; Leg162; Manual Alignment to LR04; Ocean Drilling Program; ODP; South Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 22351 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 77
    facet.materialart.
    Unknown
    Intact polar lipid concentrations of sediment core YC22_MR_7 off Herschel island (Yukon Coast 2022) (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: In July 2022 within the framework of an Alfred-Wegener-Institute-managed expedition and the Nunataryuk project, sediment core YC22_MR_7 was taken off the coast of Herschel Island, Canada, using a hand corer. Data sets were obtained to investigate carbon feedback from the sediments to the water column and atmosphere, using DIC concentrations and isotopic values. The local sediments are supplied primarily by organic carbon previously stored in adjacent permafrost soils (biomarker and bulk data), which erode and redeposit quickly (age model) on the ocean floor. The precursor lipids of the polar fractions used for isotope analysis were quantified following the method described in Wörmer et al. (2013). Quantified lipid classes include: betaine lipids (BL), phosphatidyl-(N)-monomethylethanolamine (PME), phosphatidylcholine (PC), phosphatidylethanolamine (PE), phosphatidylglycerol (PG), diphosphatidylglycerol (DPG) and lyso-DPG.
    Keywords: AWI Arctic Land Expedition; Betaine lipids per unit sediment mass; CA-Land_2022_YukonCoast; CA-Land_2022_YukonCoast_MR_7; DEPTH, sediment/rock; Depth, sediment/rock, standard deviation; Diphosphatidylglycerol per unit sediment mass; Hand corer; HCOR; Herschel Island, Yukon Territory, Canada; Lyso-Diphosphatidylglycerol per unit sediment mass; NUNATARYUK; NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation; Phosphatidylcholine per unit sediment mass; Phosphatidylethanolamine per unit sediment mass; Phosphatidylglycerol per unit sediment mass; Phosphatidylmethylethanolamine per unit sediment mass; YC22_MR_7; Yukon Coast 2022
    Type: Dataset
    Format: text/tab-separated-values, 32 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 78
    facet.materialart.
    Unknown
    Benthic foraminifera from the Mauritanian shelf and upper slope (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: Foraminiferal assemblage data was collected from the top 0-1 cm sediment layer of 30 surface samples from the Mauritanian slope and shelf. The material was sampled with a box corer (50x50x55cm), grabs and gravity corer (6m lenght) during the expedition MSM16/3 of RV Maria S. Merian in October-November 2010. The samples range from water depths of 13 m on the shelf to 1310 m on the middle bathyal slope. They are from the inner and outer shelf, upper bathyal slope, canyons, coral mounds, the cold-water coral reef chains at 400–600 m water depth and the middle bathyal slope. The samples were washed over a 250 µm sieve and dried. Per sample 200 benthic foraminiferal specimens were counted on species level. 154 were documented with illustrations and descriptions. The purpose of the study was to investigate the foraminiferal faunas of the Mauritanian shelf and upper slope and their association with cold water coral habitats.
    Keywords: 1015-1; 1016-1; 1020-1; 1021-1; 1022-1; 1024-1; 1026-1; 1028-1; 1033-1; 1035-1; 1045-1; 1056-1; 1061-1; 1062-1; 1064-1; 1069-1; 1070-1; 1071-1; 1076-2; 1077-1; 869-1; 870-1; 871-1; 872-1; 880-1; 945-2; 949-1; 951-4; 954-1; 965-1; Acervulina inhaerens; Ammobaculites filiformis; Ammodiscus tenuis; Ammolagena clavata; Ammonia neobeccarii; Amphicoryna scalaris; Arguin mud wedge; Baie du Levrier; Banda mounds; Benthos; Bolivina beyrichi; Bolivina earlandi; Bolivina spathulata; Bolivina subaenariensis; Bulimina aculeata; Bulimina marginata; Bulimina striata; Cancris auriculus; Canyon area southern Banc dArguin (ROV2); Canyon S of Timiris mound chain; Cassidulina laevigata; central outer Banc dArguin; Chilostomella oolina; Cibicidoides lobatulus; Cibicidoides mundulus; Cibicidoides wuellerstorfi; Cold water coral habitats; Connemarella rudis; Counting 〉250 µm fraction; Cribromiliolinella subvalvularis; Cribrostomoides subglobosum; Cyclammina cancellata; Deep mound chain; DEPTH, sediment/rock; Discammina compressa; Dorothia pseudoturris; Eggerella sp.; Eggerelloides advena; Eggerelloides scaber; Ehrenbergina serrata; Elevation of event; Elphidium crispum; Elphidium fichtelianum; Elphidium maorium; Eponides repandus; Event label; Fissurina sp.; Foraminifera; Foraminifera, benthic, total; Fursenkoina complanata; GC; GeoB14703-1; GeoB14704-1; GeoB14705-1; GeoB14706-1; GeoB14714-1; GeoB14780-2; GeoB14782-3; GeoB14785-4; GeoB14788-1; GeoB14799-1; GeoB14847-1; GeoB14848-1; GeoB14852-1; GeoB14853-1; GeoB14854-1; GeoB14856-1; GeoB14858-1; GeoB14860-1; GeoB14865-1; GeoB14867-1; GeoB14878-1; GeoB14889-1; GeoB14895-1; GeoB14896-1; GeoB14898-1; GeoB14903-1; GeoB14904-1; GeoB14905-1; GeoB14910-2; GeoB14911-1; Giant box corer; GKG; Globobulimina doliolum; Globobulimina turgida; Globulina gibba; Goesella cylindrica; Grab; GRAB; Gravity corer; Gyroidina orbicularis; Hanzawaia boueana; Heterolepa bradyi; Hoeglundina elegans; Homalohedra borealis; Homalohedra williamsoni; Hormosina globulifera; Hyalinea balthica; Hyrrokkin sarcophaga; Karreriella bradyi; Lachlanella bicornis; Laevidentalina communis; Lagena gibbera; Lagenammina arenulata; Lagenammina testacea; Lagena striata; Latitude of event; Lenticulina iota; Lenticulina rotulata; Lenticulina sp.; Lenticulina submamilligera; Longitude of event; Marginulina glabra; Maria S. Merian; Marsipella elongata; Martinottiella communis; Mauritania; Melonis zaandamae; Miliolina oblonga; Miliolinella sp.; MSM16/3; Neolenticulina peregrina; Nonion fabum; northern Banda slide; northern canyon area west of Banc dArguin (ROV3); Oridorsalis umbonatus; outer shelf off Banc dArguin; Pararotalia sp.; Placopsilina bradyi; Planispirinella exigua; Planodiscorbis rarescens; Planorbulina mediterranensis; Planulina ariminensis; Procerolagena gracilis; Proemassilina arenaria; Psammosphaera fusca; Pullenia subcarinata; Pyrgo depressa; Pyrgoella sphaera; Pyrgo williamsoni; Quinqueloculina lamarckiana; Quinqueloculina sp.; Quinqueloculina viennensis; Rectuvigerina elongatastriata; Recurvoides contortus; Reophax agglutinatus; Reophax bilocularis; Reophax bradyi; Rhabdammina abyssorum; Rhabdammina scabra; Rosalina semipunctata; Rosalina vermiculata; Rutherfordoides rotundiformis; Rutherfordoides sp.; Sahulia barkeri; Sigmoilopsis schlumbergeri; Siphouvigerina proboscidea; Site; southern Banc d Arguin; southern Banda slide; Sphaeroidina bulloides; Spiroloculina dilatata; Spiroloculina excavata; Spiroloculina tenuiseptata; Spiroplectinella wrighti; Spirorutilus carinatus; Stomatorbina concentrica; Tetragonostomina rhombiformis; Textularia pseudotrochus; Textularia sp.; Textularia truncata; Timiris deep coral mound chain; Timiris mud wedge; Trifarina albatrossi; Trifarina angulosa; Trifarina fornasinii; Triloculina angusteoralis; Triloculina fichteliana; Tritaxis conica; Trochammina inflata; Uvigerina hispida; Uvigerina mediterranea; Uvigerina peregrina; Uvigerina pygmaea
    Type: Dataset
    Format: text/tab-separated-values, 3690 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 79
    facet.materialart.
    Unknown
    Intact polar lipid fatty acids carbon isotopic composition of sediment core YC22_MR_7 off Herschel island (Yukon Coast 2022) (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-01
    Description: In July 2022 within the framework of an Alfred-Wegener-Institute-managed expedition and the Nunataryuk project, sediment core YC22_MR_7 was taken off the coast of Herschel Island, Canada, using a hand corer. Data sets were obtained to investigate carbon feedback from the sediments to the water column and atmosphere, using DIC concentrations and isotopic values. The local sediments are supplied primarily by organic carbon previously stored in adjacent permafrost soils (biomarker and bulk data), which erode and redeposit quickly (age model) on the ocean floor. Intact polar lipid fatty acids were extracted from the sediments, purified, and 14C analysis was performed as described in Ruben et al. (2023). The 13C isotopy was determined with GC-IRMS (Elvert et al., 2003).
    Keywords: AWI Arctic Land Expedition; CA-Land_2022_YukonCoast; CA-Land_2022_YukonCoast_MR_7; DEPTH, sediment/rock; Depth, sediment/rock, standard deviation; Fatty acid methyl ester, compound; Fatty acid methyl ester, compound specific, δ13C; Fatty acid methyl ester, compound specific, δ13C, standard deviation; Fraction modern carbon, compound specific; Fraction modern carbon, compound specific, standard deviation; Hand corer; HCOR; Herschel Island, Yukon Territory, Canada; NUNATARYUK; NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation; Sample ID; YC22_MR_7; Yukon Coast 2022
    Type: Dataset
    Format: text/tab-separated-values, 119 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 80
    facet.materialart.
    Unknown
    Exploring Prokaryotic Communities in the Guts and Mucus of Nudibranchs, and Their Similarity to Sediment and Seawater Microbiomes (2023)
    In:  Current Microbiology vol. 80 no. 294
    Details
    Publication Date: 2024-05-31
    Description: In the present study, we compared mucus and gut-associated prokaryotic communities from seven nudibranch species with sediment and seawater from Thai coral reefs using high-throughput 16S rRNA gene sequencing. The nudibranch species were identified as Doriprismatica atromarginata (family Chromodorididae), Jorunna funebris (family Discodorididae), Phyllidiella nigra, Phyllidiella pustulosa, Phyllidia carlsonhoffi, Phyllidia elegans, and Phyllidia picta (all family Phyllidiidae). The most abundant bacterial phyla in the dataset were Proteobacteria, Tenericutes, Chloroflexi, Thaumarchaeota, and Cyanobacteria. Mucus and gut-associated communities differed from one another and from sediment and seawater communities. Host phylogeny was, furthermore, a significant predictor of differences in mucus and gut-associated prokaryotic community composition. With respect to higher taxon abundance, the order Rhizobiales (Proteobacteria) was more abundant in Phyllidia species (mucus and gut), whereas the order Mycoplasmatales (Tenericutes) was more abundant in D. atromarginata and J. funebris. Mucus samples were, furthermore, associated with greater abundances of certain phyla including Chloroflexi, Poribacteria, and Gemmatimonadetes, taxa considered to be indicators for high microbial abundance (HMA) sponge species. Overall, our results indicated that nudibranch microbiomes consisted of a number of abundant prokaryotic members with high sequence similarities to organisms previously detected in sponges.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 81
    facet.materialart.
    Unknown
    A standardized database of Last Interglacial (MIS 5e) sea-level indicators in Southeast Asia (2021)
    Copernicus GmbH
    In:  Earth System Science Data vol. 13 no. 9, pp. 4313-4329
    Details
    Publication Date: 2024-05-31
    Description: Marine Isotope Stage 5e (MIS 5e; the Last Interglacial, 125 ka) represents a process analog for a warmer world. Analysis of sea-level proxies formed in this period helps in constraining both regional and global drivers of sea-level change. In Southeast Asia, several studies have reported elevation and age information on MIS 5e sea-level proxies, such as fossil coral reef terraces or tidal notches, but a standardized database of such data was hitherto missing. In this paper, we produced such a sea-level database using the framework of the World Atlas of Last Interglacial Shorelines (WALIS; https://warmcoasts.eu/world-atlas.html). Overall, we screened and reviewed 14 studies on Last Interglacial sea-level indicators in Southeast Asia, from which we report 43 proxies (42 coral reef terraces and 1 tidal notch) that were correlated to 134 dated samples. Five data points date to MIS 5a (80 ka), six data points are MIS 5c (100 ka), and the rest are dated to MIS 5e. The database compiled in this study is available at https://doi.org/10.5281/zenodo.5040784 (Maxwell et al., 2021).
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 82
    facet.materialart.
    Unknown
    Dynamics of large benthic foraminiferal assemblages: A tool to foreshadow reef degradation? (2022)
    In:  Science of The Total Environment vol. 811 no. 151396
    Details
    Publication Date: 2024-05-31
    Description: Ecological regime shifts in the marine realm have been recorded from a variety of systems and locations around the world. Coral reefs have been especially affected, with their benthic habitat changing from a dominance of stony corals to a dominance of other organisms such as fleshy algae. To detect changes in the benthic habitat of coral reefs, simple tools applicable on a global scale are necessary for future monitoring programs. Hence, the aim of this research is to explore the hypothesis that shifts in assemblages of large benthic foraminifera (LBF) can detect early signs of degradation in the reef benthic habitat. To do so, data on living assemblages of LBF collected between 1997 and 2018 at 12 islands in the Spermonde Archipelago (South Sulawesi, Indonesia) were analyzed. Foraminiferal specimens were morphologically identified to the species level and statistical analyses performed to assess changes in their assemblage composition. A clear temporal shift was observed. Typical foraminiferal assemblages in a coral-dominated (e.g., Amphistegina lobifera, Calcarina spengleri, Heterostegina depressa) and fleshy algaedominated (e.g., Neorotalia gaimardi, C. mayori) reef habitats were identified and significantly linked to the substrate type. Other species (e.g., Elphidium spp., Peneroplis planatus and Sphaerogypsina globulus) seem to reflect a spatial and temporal gradient of anthropogenic pollution from local inhabited islands and ongoing urban development on the mainland. Hence communities of LBF consistently follow gradual shifts in environmental conditions. Additionally to foraminiferal assemblages being an indicator for actual reef condition, closely monitoring LBF may provide early information on reef degradation, in time to take action against identified stressors (e.g., eutrophication or intensive fishing) at local and regional scales. The circumtropical distribution of LBF is such that they can be included worldwide in reef monitoring programs, conditional to calibration to the regional species pool.
    Keywords: Temporal dynamics ; Bioindicator ; Early detection ; Coral reef ; Spermonde Archipelago ; Indonesia
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 83
    facet.materialart.
    Unknown
    Marine conservation beyond MPAs: Towards the recognition of other effective area-based conservation measures (OECMs) in Indonesia (2022)
    In:  Marine Policy vol. 137 no. 104939
    Details
    Publication Date: 2024-05-31
    Description: In a marine environment that is rapidly changing due to anthropogenic activities and climate change, area-based management tools are often used to mitigate threats and conserve biodiversity. Marine protected areas (MPAs) are amongst the most widespread and recognized marine conservation tools worldwide, however, MPAs alone are inadequate to address the environmental crisis. The promotion of other effective area-based conservation measures (OECMs) under draft Target 3 of the Post-2020 Global Biodiversity Framework, i.e., conserving 30% of marine areas by 2030, holds promise to acknowledge sites and practices occurring beyond MPAs that contribute to conservation. Here, we evaluate the potential recognition of OECMs into Indonesia's national policy framework on marine resource management and provide the first-ever overview of distribution and types of potential marine OECMs in Indonesia, including a review of the existing evidence on conservation effectiveness. We identified 〉 390 potential marine OECMs, led by government, customary and local communities, or the private sector, towards diverse management objectives, including habitat protection, traditional/customary management, fisheries, tourism, or other purposes. While some evidence exists regarding the conservation effectiveness of these practices, the long-term impacts on biodiversity of all potential marine OECMs in Indonesia are unknown. Many OECM elements have been included in several national policies, yet there are no established mechanisms to identify, recognize and report sites as OECMs in Indonesia. We propose four transformational strategies for future OECM recognition in Indonesia, namely: (i) safeguard customary and traditional communities, (ii) leverage cross-sector and cross-scale collaboration, (iii) focus on delivering outcomes, and (iv) streamline legal frameworks. Our study shows that OECMs have the potential to play a significant role in underpinning marine area-based conservation in Indonesia, including supporting the Government of Indonesia in reaching national and international conservation targets and goals.
    Keywords: Area-based management ; Biodiversity conservation ; Customary management ; Fisheries ; Co-management ; Sustainable marine management
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 84
    facet.materialart.
    Unknown
    The annelid community of a natural deep-sea whale fall off eastern Australia (2023)
    Australian Museum
    In:  Records of the Australian Museum vol. 75 no. 3, pp. 167-213
    Details
    Publication Date: 2024-05-31
    Description: n the deep ocean, whale falls (deceased whales that sink to the seafloor) act as a boost of productivity in this otherwise generally food-limited setting, nourishing organisms from sharks to microbes during the various stages of their decomposition. Annelid worms are habitual colonizers of whale falls, with new species regularly reported from these settings and their systematics helping to resolve biogeographic patterns among deep-sea organic fall environments. During a 2017 expedition of the Australian research vessel RV Investigator to sample bathyal to abyssal communities off Australia’s east coast, a natural whale fall was opportunistically trawled at ~1000 m depth. In this study, we provide detailed taxonomic descriptions of the annelids associated with this whale-fall community, using both morphological and molecular techniques. From this material we describe nine new species from five families (Dorvilleidae: Ophryotrocha dahlgreni sp. nov. Ophryotrocha hanneloreae sp. nov., Ophryotrocha ravarae sp. nov.; Hesionidae: Vrijenhoekia timoharai sp. nov.; Nereididae: Neanthes adriangloveri sp. nov., Neanthes visicete sp. nov.; Orbiniidae: Orbiniella jamesi sp. nov.), including two belonging to the bone-eating genus Osedax (Siboglinidae: Osedax waadjum sp. nov., Osedax byronbayensis sp. nov.) that are the first to be described from Australian waters. We further provide systematic accounts for 10 taxa within the Ampharetidae, Amphinomidae, Microphthalmidae, Nereididae, Orbiniidae, Phyllodocidae, Protodrilidae, Sphaerodoridae and Phascolosomatidae. Our investigations uncover unique occurrences and for the first time enable the evaluation of biogeographic links between Australian whale falls and others in the western Pacific as well as worldwide.
    Keywords: polychaete ; chemosynthesis ; organic fall ; bathyal ; Bathymodiolinae ; Pacific Ocean
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 85
    facet.materialart.
    Unknown
    Limited Progress in Improving Gender and Geographic Representation in Coral Reef Science (2021)
    Frontiers Media SA
    In:  Frontiers in Marine Science vol. 8 no. 731037
    Details
    Publication Date: 2024-05-31
    Description: Despite increasing recognition of the need for more diverse and equitable representation in the sciences, it is unclear whether measurable progress has been made. Here, we examine trends in authorship in coral reef science from 1,677 articles published over the past 16 years (2003–2018) and find that while representation of authors that are women (from 18 to 33%) and from non-OECD nations (from 4 to 13%) have increased over time, progress is slow in achieving more equitable representation. For example, at the current rate, it would take over two decades for female representation to reach 50%. Given that there are more coral reef non-OECD countries, at the current rate, truly equitable representation of non-OECD countries would take even longer. OECD nations also continue to dominate authorship contributions in coral reef science (89%), in research conducted in both OECD (63%) and non-OECD nations (68%). We identify systemic issues that remain prevalent in coral reef science (i.e., parachute science, gender bias) that likely contribute to observed trends. We provide recommendations to address systemic biases in research to foster a more inclusive global science community. Adoption of these recommendations will lead to more creative, innovative, and impactful scientific approaches urgently needed for coral reefs and contribute to environmental justice efforts.
    Keywords: coral reef science ; gender ; equity ; inclusion ; representation ; diversity
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 86
    facet.materialart.
    Unknown
    Simulation of the mid-Pliocene Warm Period using HadGEM3: experimental design and results from model–model and model–data comparison (2021)
    Copernicus GmbH
    In:  Climate of the Past vol. 17 no. 5, pp. 2139-2163
    Details
    Publication Date: 2024-05-31
    Description: Here we present the experimental design and results from a new mid-Pliocene simulation using the latest version of the UK's physical climate model, HadGEM3-GC31-LL, conducted under the auspices of CMIP6/PMIP4/PlioMIP2. Although two other palaeoclimate simulations have been recently run using this model, they both focused on more recent periods within the Quaternary, and therefore this is the first time this version of the UK model has been run this far back in time. The mid-Pliocene Warm Period, ∼3 Ma, is of particular interest because it represents a time period when the Earth was in equilibrium with CO2 concentrations roughly equivalent to those of today, providing a possible analogue for current and future climate change. The implementation of the Pliocene boundary conditions is firstly described in detail, based on the PRISM4 dataset, including CO2, ozone, orography, ice mask, lakes, vegetation fractions and vegetation functional types. These were incrementally added into the model, to change from a pre-industrial setup to a Pliocene setup. The results of the simulation are then presented, which are firstly compared with the model's pre-industrial simulation, secondly with previous versions of the same model and with available proxy data, and thirdly with all other models included in PlioMIP2. Firstly, the comparison with the pre-industrial simulation suggests that the Pliocene simulation is consistent with current understanding and existing work, showing warmer and wetter conditions, and with the greatest warming occurring over high-latitude and polar regions. The global mean surface air temperature anomaly at the end of the Pliocene simulation is 5.1 ∘C, which is the second highest of all models included in PlioMIP2 and is consistent with the fact that HadGEM3-GC31-LL has one of the highest Effective Climate Sensitivities of all CMIP6 models. Secondly, the comparison with previous generation models and with proxy data suggests a clear increase in global sea surface temperatures as the model has undergone development. Up to a certain level of warming, this results in a better agreement with available proxy data, and the “sweet spot” appears to be the previous CMIP5 generation of the model, HadGEM2-AO. The most recent simulation presented here, however, appears to show poorer agreement with the proxy data compared with HadGEM2 and may be overly sensitive to the Pliocene boundary conditions, resulting in a climate that is too warm. Thirdly, the comparison with other models from PlioMIP2 further supports this conclusion, with HadGEM3-GC31-LL being one of the warmest and wettest models in all of PlioMIP2, and if all the models are ordered according to agreement with proxy data, HadGEM3-GC31-LL ranks approximately halfway among them. A caveat to these results is the relatively short run length of the simulation, meaning the model is not in full equilibrium. Given the computational cost of the model it was not possible to run it for a longer period; a Gregory plot analysis indicates that had it been allowed to come to full equilibrium, the final global mean surface temperature could have been approximately 1.5 ∘C higher.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 87
    facet.materialart.
    Unknown
    In welche Richtung steuert die internationale Klimapolitik? : Eine Bilanz der COP28 in Dubai Bericht (2024)
    Details
    Publication Date: 2024-05-31
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: German
    Type: contributiontoperiodical , doc-type:contributionToPeriodical
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 88
    facet.materialart.
    Unknown
    A generative toolkit to help raise industrial design students' awareness of low metal recycling rates (2024)
    Cambridge : Cambridge University Press
    Details
    Publication Date: 2024-05-31
    Description: Education for Sustainable Development requires raising individuals' awareness of problems relevant to the environment. We designed a Generative Toolkit that supports industrial design students carrying out a Speculative Design task and through this process initiates greater problem awareness of low metal recycling rates. In this paper we give insights into the Toolkit's theoretical derivation and the design process. Findings from testing suggest that there are several opportunities for improvement, such as considering further content-related competencies in the Toolkit's design.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
    Type: conferenceobject , doc-type:conferenceObject
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 89
    facet.materialart.
    Unknown
    Humboldtn and the sustainable transformation of universities (2024)
    Cham : Springer
    Details
    Publication Date: 2024-05-31
    Description: The sustainable transformation of society is one of the greatest challenges of our time. Universities are central actors for knowledge generation and transfer in the sustainability field and, at the same time, are facing the question of how they can become sustainable social actors and make their activities and infrastructure sustainable. Against this background, the 16 member universities of the State Rectors' Conference of North Rhine-Westphalia have joined forces in the Humboldtn initiative to pool their efforts in the field of sustainability and to anchor generational responsibility for sustainable action in research, teaching, administration, infrastructure, and transfer. How the joint responsibility for the questions for the future in the aforementioned complex of topics is addressed via Humboldtn and which focal points are set in the process will be presented and discussed using examples from the institutional sustainability transformation and examples from the research area from RWTH Aachen University. In this way, the implementation of transformation processes at universities and their possible blueprint effect can be illuminated.
    Keywords: ddc:300
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
    Type: bookpart , doc-type:bookPart
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 90
    facet.materialart.
    Unknown
    Comparative analysis of residential building decarbonization policies in major economies : insights from the EU, China, and India (2024)
    Details
    Publication Date: 2024-05-31
    Description: The global building sector, responsible for over 30% of CO2 emissions, necessitates urgent decarbonization efforts. This paper examines residential building decarbonization policies in three major economies - the European Union (EU), China, and India. It provides an overview of diverse policies through policy landscape analysis and delves into the design specifics with a detailed policy intensity analysis of building energy codes, information disclosure, and financial incentives in each region. Our findings reveal a diverse mix of policies targeting residential building decarbonization in all three regions. While the EU and China have long-established diverse policy instruments, India's building energy efficiency policies are relatively recent and limited. Detailed analyses of building energy codes, information disclosure, and financial incentives expose variations in ambition, scope, and implementation, even with shared policy instruments. Significant advancements in building energy codes, particularly in stringency and compliance checks, are evident in the EU and China. Conversely, India faces a notable obstacle with limited adoption of residential building energy codes, impacting its journey towards net-zero. The EU leads in building energy labelling policies, while China and India encounter various challenges hindering widespread implementation. Financial incentives across the three regions predominantly take the form of subsidies, potentially straining public budgets. The study concludes with reflections on the pressing need for future research extending beyond the operational phase of buildings.
    Keywords: ddc:320
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
    Type: article , doc-type:article
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 91
    facet.materialart.
    Unknown
    CbD (Circular by Design): Ressourcenwende über nachhaltiges Produktdesign von Konsumgütern am Fallbeispiel Kühl-/Gefriergerät : Abschlussbericht (2024)
    Freiberg : Helmholtz-Zentrum Dresden Rossendorf
    Details
    Publication Date: 2024-05-31
    Description: Im Projekt wird ein kreislauffähiges Produktdesign für Kühl-/Gefriergeräte auf Basis von im Labor- und Industriemaßstab ermittelten Daten entwickelt, das gleichermaßen energie- als auch ressourceneffizient ist. Übergreifendes Ziel war die modellhafte Weiterentwicklung eines Konsumgutes, das neben dem bereits bestehenden Fokus auf Energieeffizienz auch das Thema Ressourceneffizienz in den Blick nimmt. In der Konzeptphase wurden dazu verschiedene Ansätze entwickelt und mit einem Bewertungs- und Entscheidungstool ergänzt, das als Standard für weitere Konsumgüter dienen kann. Dabei wurde ein übertragbares Designkonzept zur Kreislaufführung der verwendeten Materialien von Konsumgütern am Beispiel eines Kühl-/Gefriergerät-Prototyps erstellt. Da die dafür erforderlichen Daten in der Literatur sowie über öffentlich zugängliche Datenbanken nicht vorhanden bzw. für Forschungseinrichtungen zugänglich waren, wurden diese über Labor- und Großversuch beim Recycling-Unternehmen Stena (Recular) selbst und damit in jedem Schritt nachvollziehbar erhoben. Auf dieser Grundlage wurden verschiedene Designoptionen, mit dem Fokus auf ein möglichst ressourceneffizientes und reparaturfreundliches Produkt zur Schaffung tatsächlich geschlossener Stoffkreisläufe und von Möglichkeiten für Repair/Reuse sowie neuer Geschäftsmodelle, entwickelt. Die Zusammenführung der Ressourceneffizienzanalyse mit einem multiregional erweiterten Input-Output-Modell wird zukünftig die Abschätzung der Recyclingfähigkeit von Produkten bereits im Designstadium ermöglichen und dadurch ein Design-for-Repair und/oder -Recycling unterstützen.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: German
    Type: report , doc-type:report
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 92
    facet.materialart.
    Unknown
    Aerosol Transport from the Asian Summer Monsoon into the Arctic Lower Stratosphere (2024)
    Copernicus Publications
    In:  EPIC3Copernicus Publications
    Details
    Publication Date: 2024-05-31
    Description: The Asian summer monsoon is linked to deep convection over the Indian subcontinent and to an anticyclonic flow that extends from the upper troposphere into the lower stratosphere region. This allows both gas-phase aerosol precursors and aerosol particles from surface sources to reach the stratosphere. The horizontal transport out of the Asian monsoon anticyclone towards the extratropical lower stratosphere of the Northern Hemisphere is the focus of this study. We present an annual record of Lidar observations at AWIPEV in Ny-Ålesund. The data record is free from obvious layers like polar stratospheric clouds, volcanic eruptions or forest fires. Nevertheless, the lower stratosphere reveals an annual cycle with lower backscatter values in winter and spring and higher backscatter values in summer and autumn. The Lidar measurements have been linked to backward trajectory calculations and simulations of artificial surface origin tracers with the three-dimensional Chemical Lagrangian Model of the Stratosphere (CLaMS). The simulations show that air masses observed above Ny-Ålesund have been transported from surface sources in Asia into the Arctic lower stratosphere. Thus, the increased backscatter values during summer and autumn can be explained by transport of aerosol particles from the Asian summer monsoon into the Arctic lower stratosphere.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Other , notRev
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 93
    facet.materialart.
    Unknown
    Improvement of Star Photometer Validation (2024)
    In:  EPIC3
    Details
    Publication Date: 2024-05-31
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , NonPeerReviewed
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 94
    facet.materialart.
    Unknown
    Improving daily-to-seasonal sea ice forecasts of the AWI coupled prediction system with sea-ice and ocean data assimilation and atmospheric large-scale wind nudging. (2024)
    Copernicus Publications
    In:  EPIC3Copernicus Publications
    Details
    Publication Date: 2024-05-31
    Description: Predictive skills of coupled sea-ice/ocean and atmosphere models are limited by the chaotic nature of the atmosphere. Assimilation of observational information on ocean hydrography and sea ice allows to obtain a coupled-system state that provides a basis for subseasonal-to-seasonal ocean and sea-ice forecast (Mu et al., 2022). However, if the atmosphere is not additionally constrained, the quasi-random atmospheric states within an ensemble forecast lead to a fast divergence of the ocean and sea-ice states, degrading the system’s performance with respect to the sea ice forecasts. As reported previously, imposing an additional constraint by nudging large-scale winds to the ERA5 reanalysis data (Sánchez-Benítez et al., 2021; Athanase et al., 2022) improves predictive skills of the AWI Coupled Prediction System (AWI-CPS, Mu et al. 2022) with regard to sea ice drift (Losa et al., 2023). Here we provide results based on a much more extensive set of ensemble-based data assimilation experiments spanning the time period from 2002 to 2023 and a series of long forecast experiments over 2010 – 2023, initialized in four different seasons. We compare the performance of forecasts initialized from two sets of data assimilation experiments, with and without atmospheric wind nudging. The additional relaxation of the large-scale atmospheric circulation to the ERA5 reanalysis data for the initialization leads to reasonable atmospheric forecast skill on weather timescales: Despite the simple technique, the coarse resolution compared to NWP systems, and the limited optimization efforts, 10-day forecasts of the 500 hPa geopotential height are about as skillful as the best performing NWP forecasts were about 10 –15 years ago. Among other aspects, this leads to significantly improved subseasonal-to-seasonal sea-ice concentration and thickness forecasts. Athanase, M., Schwager, M., Streffing, J., Andrés-Martínez, M., Loza, S., and Goessling, H.: Impact of the atmospheric circulation on the Arctic snow cover and ice thickness variability , EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-5836, https://doi.org/10.5194/egusphere-egu22-5836, 2022. Losa, S. N., Mu, L., Athanase, M., Streffing, J., Andrés-Martínez, M., Nerger, L., Semmler, T., Sidorenko, D., and Goessling, H. F.: Combining sea-ice and ocean data assimilation with nudging atmospheric circulation in the AWI Coupled Prediction System, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-14227, https://doi.org/10.5194/egusphere-egu23-14227, 2023. Mu, L. , Nerger, L. , Streffing, J. , Tang, Q. , Niraula, B. , Zampieri, L., Loza, S. N. and Goessling, H. F. (2022): Sea‐Ice Forecasts With an Upgraded AWI Coupled Prediction System , Journal of Advances in Modeling Earth Systems, 14 (12) . doi: 10.1029/2022ms003176 Sánchez-Benítez, A. , Goessling, H. , Pithan, F. , Semmler, T. and Jung, T. (2022): The July 2019 European Heat Wave in a Warmer Climate: Storyline Scenarios with a Coupled Model Using Spectral Nudging , Journal of Climate, 35 (8), pp. 2373-2390 . doi: 10.1175/JCLI-D-21-0573.1
    Repository Name: EPIC Alfred Wegener Institut
    Type: Other , notRev
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 95
    facet.materialart.
    Unknown
    Improvement of Aerosol Coarse-Mode Detection through Additional Use of Infrared Wavelengths in the Inversion of Arctic Lidar Data (2024)
    MDPI
    In:  EPIC3Remote Sensing, MDPI, 16(9), pp. 1576-1576, ISSN: 2072-4292
    Details
    Publication Date: 2024-05-31
    Description: An Nd:YAG-based Raman lidar provides a mature technology to derive profiles of the optical properties of aerosols over a wide altitude range. However, the derivation of micro-physical parameters is an ill-posed problem. Hence, increasing the information content of lidar data is desirable. Recently, ceilometers and wind lidar systems, both operating in the near-infrared region, have been successfully employed in aerosol research. In this study, we demonstrate that the inclusion of additional backscatter coefficients from these two latter instruments clearly improves the inversion of micro-physical parameters such as volume distribution function, effective radius, or single-scattering albedo. We focus on the Arctic aerosol and start with the typical volume distribution functions of Arctic haze and boreal biomass burning. We forward calculate the optical coefficients that the lidar systems should have seen and include or exclude the backscatter coefficients of the ceilometer (910 nm) and wind lidar data (1500 nm) to analyze the value of these wavelengths in their ability to reproduce the volume distribution function, which may be mono- or bimodal. We found that not only the coarse mode but also the properties of the accumulation mode improved when the additional wavelengths were considered. Generally, the 1500 nm wavelength has greater value in correctly reproducing the aerosol properties
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 96
    facet.materialart.
    Unknown
    Yedoma: Late Pleistocene ice-rich syngenetic permafrost of Beringia (2024)
    Elsevier
    In:  EPIC3Elsevier, 16 p., ISBN: 9780124095489
    Details
    Publication Date: 2024-05-31
    Description: Yedoma is a permafrost deposit widely distributed across the Arctic and found exclusively within the unglaciated regions in northern Siberia, Alaska, and the Yukon, which are the core regions of Beringia. Yedoma deposits accumulated during the late Pleistocene Stage and are characterized by their predominantly fine-grained texture and association with syngenetic perma-frost formation. The very high ground ice content is most commonly present as pore ice and wedge ice that formed contemporaneously with sediment deposition. In the last decade, research has transitioned from debates about the origin of the Yedoma deposits towards increasing attention on the large carbon and nitrogen pools in Yedoma, their vulnerability to thaw, and increasing mobilization as the climate has warmed across the Arctic. In addition to classical cryolithological and sedimentological research, new methods such as stable isotope paleoclimate reconstruction and ancient sedimentary DNA studies have been more widely applied to better understand the characteristics of Yedoma deposits and helped emphasize their value as archives of Quaternary climate and paleoecological conditions during Ice Age Beringia.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Inbook , peerRev
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 97
    facet.materialart.
    Unknown
    Glacial isostatic adjustment reduces past and future Arctic subsea permafrost (2024)
    Springer Nature
    In:  EPIC3Nature Communications, Springer Nature, 15(1), pp. 3232-3232, ISSN: 2041-1723
    Details
    Publication Date: 2024-05-31
    Description: Sea-level rise submerges terrestrial permafrost in the Arctic, turning it into subsea permafrost. Subsea permafrost underlies ~ 1.8 million km2 of Arctic continental shelf, with thicknesses in places exceeding 700 m. Sea-level variations over glacial-interglacial cycles control subsea permafrost distribution and thickness, yet no permafrost model has accounted for glacial isostatic adjustment (GIA), which deviates local sea level from the global mean due to changes in ice and ocean loading. Here we incorporate GIA into a pan-Arctic model of subsea permafrost over the last 400,000 years. Including GIA significantly reduces present-day subsea permafrost thickness, chiefly because of hydro-isostatic effects as well as deformation related to Northern Hemisphere ice sheets. Additionally, we extend the simulation 1000 years into the future for emissions scenarios outlined in the Intergovernmental Panel on Climate Change’s sixth assessment report. We find that subsea permafrost is preserved under a low emissions scenario but mostly disappears under a high emissions scenario.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 98
    facet.materialart.
    Unknown
    (Figure 2) Proxy records of sediment core GeoB6007-2 (2010)
    PANGAEA
    In:  Supplement to: Bamberg, Audrey; Rosenthal, Yair; Paul, André; Heslop, David; Mulitza, Stefan; Rühlemann, Carsten; Schulz, Michael (2010): Reduced North Atlantic Central Water formation in response to early Holocene ice-sheet melting. Geophysical Research Letters, 37, L17705, https://doi.org/10.1029/2010GL043878
    Details
    Publication Date: 2024-05-31
    Description: Central waters of the North Atlantic are fundamental for ventilation of the upper ocean and are also linked to the strength of the Atlantic Meridional Overturning Circulation (AMOC). Here, we show based on benthic foraminiferal Mg/Ca ratios, that during times of enhanced melting from the Laurentide Ice Sheet (LIS) between 9.0-8.5 thousand years before present (ka) the production of central waters weakened the upper AMOC resulting in a cooling over the Northern Hemisphere. Centered at 8.54 ± 0.2 ka and 8.24 ± 0.1 ka our dataset records two ~150-year cooling events in response to the drainage of Lake Agassiz/Ojibway, indicating early slow-down of the upper AMOC in response to the initial freshwater flux into the subpolar gyre (SPG) followed by a more severe weakening of both the upper and lower branches of the AMOC at 8.2 ka. These results highlight the sensitivity of regional North Atlantic climate change to the strength of central-water overturning and exemplify the impact of both gradual and abrupt freshwater fluxes on eastern SPG surface water convection. In light of the possible future increase in Greenland Ice Sheet melting due to global warming these findings may help us to better constrain and possibly predict future North Atlantic climate change.
    Keywords: BGR; Bundesanstalt für Geowissenschaften und Rohstoffe, Hannover; Center for Marine Environmental Sciences; GeoB6007-2; Gravity corer (Kiel type); Integrierte Analyse zwischeneiszeitlicher Klimadynamik; INTERDYNAMIK; M45/5a; MARUM; Meteor (1986); SL
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 99
    facet.materialart.
    Unknown
    Palynology and radiocarbon dating on sediment profile PG1756 from Lake Billyakh, NE Siberia, Russia (2008)
    PANGAEA
    In:  Supplement to: Müller, Stefanie; Tarasov, Pavel E; Andreev, Andrei A; Diekmann, Bernhard (2009): Late Glacial to Holocene environments in the present-day coldest region of the Northern Hemisphere inferred from a pollen record of Lake Billyakh, Verkhoyansk Mts, NE Siberia. Climate of the Past, 5, 73-84, https://doi.org/10.5194/cp-5-73-2009
    Details
    Publication Date: 2024-05-31
    Description: In this study a radiocarbon-dated pollen record from Lake Billyakh (65°17'N, 126°47'E; 340 m a.s.l.) in the Verkhoyansk Mountains was used to reconstruct vegetation and climate change since about 15 kyr BP (1 kyr=1000 cal. yr). The pollen record and pollen-based biome reconstruction suggest that open cool steppe and grass and sedge tundra communities with Poaceae, Cyperaceae, Artemisia, Chenopodiaceae, Caryophyllaceae and Selaginella rupestris dominated the area from 15 to 13.5 kyr BP. On the other hand, the constant presence of Larix pollen in quantities comparable to today's values points to the constant presence of boreal deciduous conifer trees in the regional vegetation during the last glaciation. A major spread of shrub tundra communities, including birch (Betula sect. Nanae), alder (Duschekia fruticosa) and willow (Salix) species, is dated to 13.5-12.7 kyr BP, indicating a noticeable increase in precipitation toward the end of the last glaciation, particularly during the Allerød Interstadial. Between 12.7 and 11.4 kyr BP pollen percentages of herbaceous taxa rapidly increased, whereas shrub taxa percentages decreased, suggesting strengthening of the steppe communities associated with the relatively cold and dry Younger Dryas Stadial. However, the pollen data in hand indicate that Younger Dryas climate was less severe than the climate during the earlier interval from 15 to 13.5 kyr BP. The onset of the Holocene is marked in the pollen record by the highest values of shrub and lowest values of herbaceous taxa, suggesting a return of warmer and wetter conditions after 11.4 kyr BP. Percentages of tree taxa increase gradually and reach maximum values after 7 kyr BP, reflecting the spread of boreal cold deciduous and taiga forests in the region. An interval between 7 and 2 kyr BP is noticeable for the highest percentages of Scots spine (Pinus subgen. Diploxylon), spruce (Picea) and fir (Abies) pollen, indicating mid-Holocene spread of boreal forest communities in response to climate amelioration and degradation of the permafrost layer.
    Keywords: AWI_PerDyn; AWI Arctic Land Expedition; Integrierte Analyse zwischeneiszeitlicher Klimadynamik; INTERDYNAMIK; Lake Billyakh, Verkhoyansk Mountains, Yakuti, Russia; PCUWI; Permafrost Research (Periglacial Dynamics) @ AWI; PG1756; Piston corer, UWITEC; RU-Land_2005_Verkhoyansk; Yakutia2005
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 100
    facet.materialart.
    Unknown
    Palynology on sediment profile Tso Kar in Ladakh (2009)
    PANGAEA
    In:  Supplement to: Demske, Dieter; Tarasov, Pavel E; Wünnemann, Bernd; Riedel, Frank (2009): Late glacial and Holocene vegetation, Indian monsoon and westerly circulation in the Trans-Himalaya recorded in the lacustrine pollen sequence from Tso Kar, Ladakh, NW India. Palaeogeography, Palaeoclimatology, Palaeoecology, 279(3-4), 172-185, https://doi.org/10.1016/j.palaeo.2009.05.008
    Details
    Publication Date: 2024-05-31
    Description: Palynological investigation of a 410 cm long core section from Tso Kar (33°10'N, 78°E, 4527 m a.s.l.), an alpine lake situated in the arid Ladakh area of NW India at the limit of the present-day Indian summer monsoon, was performed in order to reconstruct post-glacial regional vegetation and climate dynamics. The area was covered with alpine desert vegetation from ca. 15.2 to 14 kyr BP (1 kyr=1000 cal. years), reflecting dry and cold conditions. High influx values of long-distance transported Pinus sylvestris type pollen suggest prevailing air flow from the west and northwest. The spread of alpine meadow communities and local aquatic vegetation is a weak sign of climate amelioration after ca. 14 kyr BP. Pollen data (e.g. influx values of Pinus roxburghii type and Quercus) suggest that this was due to a strengthening of the summer monsoon and the reduced activity of westerly winds. The further spread of Artemisia and species-rich meadows occurred in response to improved moisture conditions between ca. 12.9 and 12.5 kyr BP. The subsequent change towards drier desert-steppe vegetation likely indicates more frequent westerly disturbances and associated snowfalls, which favoured the persistence of alpine meadows on edaphically moist sites. The spread of Chenopodiaceae-dominated vegetation associated with an extremely weak monsoon occurred at ca. 12.2-11.8 kyr BP during the Younger Dryas interstadial. A major increase in humidity is inferred from the development of Artemisia-dominated steppe and wet alpine meadows with Gentianaceae after the late glacial/early Holocene transition in response to the strengthening of the summer monsoon. Monsoonal influence reached maximum activity in the Tso Kar region between ca. 10.9 and 9.2 kyr BP. The subsequent development of the alpine meadow, steppe and desert-steppe vegetation points to a moderate reduction in the moisture supply, which can be linked to the weaker summer monsoon and the accompanying enhancement of the winter westerly flow from ca. 9.2 to 4.8 kyr BP. The highest water levels of Tso Kar around 8 kyr BP probably reflect combined effect of both monsoonal and westerly influence in the region. An abrupt shift towards aridity in the Tso Kar region occurred after ca. 4.8 kyr BP, as evidenced by an expansion of Chenopodiaceae-dominated desert-steppe. Low pollen influx values registered ca. 2.8-1.3 kyr BP suggest scarce vegetation cover and unfavourable growing conditions likely associated with a further weakening of the Indian Monsoon.
    Keywords: Geological profile sampling; GEOPRO; Integrierte Analyse zwischeneiszeitlicher Klimadynamik; INTERDYNAMIK; Ladakh, NW India, Himalaya; Tso_Kar
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...