ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
Filter
Collection
Language
Years
  • 1
    Publication Date: 2024-03-28
    Description: Im Frühjahr dieses Jahres wurde von der Heinrich-Böll-Stiftung, dem Bund für Umwelt und Naturschutz Deutschland (BUND) und der Michael Succow Stiftung, Partner im Greifswald Moor Moorzentrum der „Mooratlas 2023 – Daten und Fakten zu nassen Klimaschützern“ herausgegeben (im August 2023 in der 4. Auflage erschienen). Auf 50 Seiten beschreiben 27 Autorinnen und Autoren Moore, ihre ökosystemare Bedeutung als Bestandteile der Naturlandschaft – mit Schwerpunkt auf ihrer Bedeutung als Kohlenstoffspeicher, für die Biodiversität und als einzigartige Lebensräume, als (land- und forstwirtschaftliche) Produktionsstandorte sowie die komplexen Zusammenhänge der Auswirkungen ihrer Melioration und Nutzung auf das Klima. Dazu wird in 19 doppelseitigen Beiträgen umfangreiches Zahlenmaterial dargeboten. Mit einem Verweis auf neue Nutzungsformen nasser Standorte, die Paludikultur, bietet der Mooratlas darüber hinaus Diskussionsansätze für eine zukünftige landwirtschaftliche Wertschöpfung mit positiven Auswirkungen. Damit liefern die Verfasserinnen und Verfasser einen Beitrag, der dazu führen soll, den Themenkomplex Moor, Moornutzung und Moorschutz und dessen Relevanz in der aktuellen Klimadebatte einer breiteren Öffentlichkeit zugänglich zu machen und ihm einen größeren Stellenwert in der gesellschaftspolitischen Diskussion zuteilwerden zu lassen. [...]
    Description: abstract
    Keywords: ddc:553.21 ; ddc:333.72 ; ddc:631.4 ; ddc:630.914 ; ddc:581.7 ; ddc:333 ; Moor ; Torf ; peatland ; peat
    Language: German
    Type: doc-type:article , publishedVersion
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    facet.materialart.
    Unknown
    Scientific Committee on Oceanic Research | Newark, Delaware, USA
    Publication Date: 2024-03-28
    Description: This proceeding summarizes the discussions during the 49th SCOR Annual Meeting held in Guayaquil, Ecuador, 17-19 October 2023. This proceeding also provides information from and links to the background information submitted for review at the meeting, including the proposals for new working groups and the reports from current SCOR working groups, projects, capacity development activities, and affiliated and partner organizations, all of which were traditionally included in the SCOR Annual Meeting background book until 2019. All of these can also be accessed online through the SCOR website at: https://scor-int.org/events/scor-2023-annual-meeting/.
    Description: Published
    Description: Non Refereed
    Keywords: SCOR
    Repository Name: AquaDocs
    Type: Book/Monograph/Conference Proceedings
    Format: 73pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    facet.materialart.
    Unknown
    The Royal Society
    In:  EPIC3Philosophical Transactions of the Royal Society B Biological Sciences, The Royal Society, 376(1817), pp. 20200431-20200431, ISSN: 0962-8436
    Publication Date: 2024-03-28
    Description: The originally published version of this paper incorrectly listed Gregor Scheiffarth's affiliation as 8Institute for Chemistry and Biology of Marine Environments [ICBM]. It should instead be 5Lower SaxonWadden Sea National Park Authority, Virchowstrasse 1, 26382 Wilhelmshaven, Germany. This has been corrected on the publisher's website.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    facet.materialart.
    Unknown
    American Geophysical Union (AGU)
    In:  EPIC3Geophysical Research Letters, American Geophysical Union (AGU), 50(1), ISSN: 0094-8276
    Publication Date: 2024-03-28
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    facet.materialart.
    Unknown
    American Chemical Society (ACS)
    In:  EPIC3Environmental Science & Technology, American Chemical Society (ACS), 58(9), pp. 4302-4313, ISSN: 0013-936X
    Publication Date: 2024-03-28
    Description: The pollution of the marine environment with plastic debris is expected to increase, where ocean currents and winds cause their accumulation in convergence zones like the North Pacific Subtropical Gyre (NPSG). Surface-floating plastic (〉330 μm) was collected in the North Pacific Ocean between Vancouver (Canada) and Singapore using a neuston catamaran and identified by Fourier-transform infrared spectroscopy (FT-IR). Baseline concentrations of 41,600–102,700 items km–2 were found, dominated by polyethylene and polypropylene. Higher concentrations (factors 4–10) of plastic items occurred not only in the NPSG (452,800 items km–2) but also in a second area, the Papaha̅naumokua̅kea Marine National Monument (PMNM, 285,200 items km–2). This second maximum was neither reported previously nor predicted by the applied ocean current model. Visual observations of floating debris (〉5 cm; 8–2565 items km–2 and 34–4941 items km–2 including smaller “white bits”) yielded similar patterns of baseline pollution (34–3265 items km–2) and elevated concentrations of plastic debris in the NPSG (67–4941 items km–2) and the PMNM (295–3748 items km–2). These findings suggest that ocean currents are not the only factor provoking plastic debris accumulation in the ocean. Visual observations may be useful to increase our knowledge of large-scale (micro)plastic pollution in the global oceans.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Publication Date: 2024-03-28
    Description: The Arctic Ocean is experiencing unprecedented changes because of climate warming, necessitating detailed analyses on the ecology and dynamics of biological communities to understand current and future ecosystem shifts. Here, we generated a four-year, high-resolution amplicon dataset along with one annual cycle of PacBio HiFi read metagenomes from the East Greenland Current (EGC), and combined this with datasets spanning different spatiotemporal scales (Tara Arctic and MOSAiC) to assess the impact of Atlantic water influx and sea-ice cover on bacterial communities in the Arctic Ocean. Densely ice-covered polar waters harboured a temporally stable, resident microbiome. Atlantic water influx and reduced sea-ice cover resulted in the dominance of seasonally fluctuating populations, resembling a process of “replacement” through advection, mixing and environmental sorting. We identified bacterial signature populations of distinct environmental regimes, including polar night and high-ice cover, and assessed their ecological roles. Dynamics of signature populations were consistent across the wider Arctic; e.g. those associated with dense ice cover and winter in the EGC were abundant in the central Arctic Ocean in winter. Population- and community-level analyses revealed metabolic distinctions between bacteria affiliated with Arctic and Atlantic conditions; the former with increased potential to use bacterial- and terrestrial-derived substrates or inorganic compounds. Our evidence on bacterial dynamics over spatiotemporal scales provides novel insights into Arctic ecology and indicates a progressing Biological Atlantification of the warming Arctic Ocean, with consequences for food webs and biogeochemical cycles.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Publication Date: 2024-03-28
    Description: The purpose of the present study was to analyze the composition of marine bacterial communities around the world, and to investigate bacterial isolates regarding the production of antibiotics. This included molecular analyses of marine bacterioplankton, as well as culture-based studies of marine bacterial isolates with antagonistic activity. The work was based on samples collected during the Galathea 3 and LOMROG-II marine research expeditions that have explored many different oceanic regions worldwide. A molecular survey of marine bacterioplankton at 24 worldwide stations investigated the abundance of major bacterial groups, potential biogeographical patterns, and their relation to environmental parameters. The original aim was to determine whether the composition of the total microbiota correlates with the occurrence of culturable bioactive bacteria. No such correlation was found. Quantitative community analyses showed latitudinal patterns in bacterial distribution, revealing significantly different relative abundances of Bacteroidetes, unclassified Bacteria and Vibrio between warmer and colder oceans. Absolute cell numbers of most bacterial groups were positively correlated with nutrient concentrations in warmer oceans, and negatively with oxygen saturation in colder oceans. The finding of differing communities in warmer and colder oceans underlined the presence of biogeographical patterns among marine bacteria and the influence of environmental parameters on bacterial distribution. Studies of antagonistic isolates focused on six bioactive Vibrionaceae isolated during Galathea 3. The six strains were identified as Vibrio coralliilyticus (two strains), V. neptunius (two strains), V. nigripulchritudo (one strain), and Photobacterium halotolerans (one strain) by sequencing of housekeeping genes. Chemical metabolite profiling underlined genetic relationships by showing highly similar production of secondary metabolites for each species. Two known antibiotics were purified; andrimid from V. coralliilyticus and holomycin from P. halotolerans. In addition, two novel cyclic peptides from P. halotolerans and a novel siderophore-like compound from V. nigripulchritudo were isolated. All three compounds interfere with quorum sensing in S. aureus. During LOMROG-II further seventeen strains with antagonistic activity were isolated, affiliating with the Actinobacteria (8 strains), Pseudoalteromonas (4 strains), the Vibrionaceae (3 strains), and Psychrobacter (2 strains). Seven of the eight bioactive Actinobacteria, being isolated from different sources throughout the Arctic Ocean, were related to Arthrobacter davidanieli. Its broad antibiotic spectrum was likely based on production of the known arthrobacilin antibiotics. The eighth actinomycete, tentatively identified as Brevibacterium sp., produces a potentially novel antimicrobial compound. Most studies of antagonistic marine bacteria have been conducted with the aim of isolating novel antimicrobials with potential clinical applications. However, little is known about production and role of these compounds in the natural environment. This thesis took one step in this direction and demonstrated that V. coralliilyticus S2052 produced its antibiotic andrimid when grown with chitin as the sole carbon source. Whilst the strain produced an array of secondary metabolites in laboratory media, it focused on andrimid production with chitin. This indicates that the antibiotic is likely produced in the natural habitat and may serve an ecophysiological function. The finding that two related strains from public culture collections do not produce andrimid and have different biosynthetic temperature optima suggested that V. coralliilyticus may comprise different subspecies with different niches. In summary, the present study shows biogeographical patterns of marine bacterioplankton on a global scale. In addition, the thesis work has demonstrated that marine Vibrionaceae and polar Actinobacteria are a resource of antibacterial compounds and may have potential for future natural product discovery.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Thesis , notRev
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Publication Date: 2024-03-28
    Description: Volcanic rocks are the prominent host rocks in geothermal and volcanic systems in general, displaying heterogeneity. Although various external factors such as temperature, pressure, time, fluid chemistry, and subsurface geology have been thoroughly researched regarding the source of hydrothermal minerals in geothermal fields, the effect of hydrothermal alteration on volcanic hosts is still controversial in the literature. This review compiles data on the physical and mechanical properties of the host rocks composing volcanic environments exhibiting hydrothermal alteration or remaining unaltered. The considered data is originated from hydrothermal areas from Kuril-Kamchatka (Russia), Los Humeros (Mexico), Ngatamaraki, Rotokawa, Kawerau and Ohakuri geothermal fields and Mt. Ruapehu, Mt. Taranaki, and Whakaari volcanoes (New Zealand), Solfatara (Italy), Reykjanes, Nesjavellir, and Theistarereykir geothermal fields (Iceland), La Soufrière de Guadeloupe (Caribbean) volcano, and Merapi volcano (Indonesia). Analysis of average values displayed in several graphical representations and correlations finds that dense rocks (such as lavas and intrusive rocks) exhibit greater competence and lower porosity than fragmental rocks. However, altered dense rocks display greater variability in mechanical properties compared to pyroclastic rocks, primarily influenced by mineral dissolution leading to rock weakening. Exceptions occur for high-temperature hydrothermal alteration, such as advanced silicification and propylitic alteration, with the latter influenced by minor types of alteration. Fragmental rocks have diverse behaviour with the extent of hydrothermal alteration and welding/compaction. According to the compiled data, an overall strengthening of pyroclastic rocks develops as hydrothermal alteration increases, regardless of the type of hydrothermal alteration. The complexity of hydrothermal systems, the variability shown by different hydrothermal settings and histories in terms of temperature, fluid chemistry and secondary mineral assemblage, and the variety of rock materials with different microstructures contribute to moderate correlations between properties compared to those established in an unaltered state. However, the same trends (linear, nonlinear, positive, negative) are preserved along hydrothermal alteration. This review emphasizes the significance of the type and degree of hydrothermal alteration, along with the rock type and pre-existence of fractures, in shaping the development of alteration in volcanic environments and modifying the properties of host rocks. The relevance of the review relies on the fact that these properties are considered to enhance the productivity of geothermal fields and improve the assessment of volcanic hazards. Future research is expected to expand on this groundwork.
    Description: In press
    Description: 104754
    Description: OSV4: Preparazione alle crisi vulcaniche
    Description: JCR Journal
    Keywords: Hydrothermal alteration ; physical properties ; degree of hydrothermal alteration ; mechanical properties ; hydrothermal alteration facies ; intrusion-related geothermal systems ; 04.08. Volcanology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Publication Date: 2024-03-28
    Description: An earthquake sequence occurred in the Central Adriatic region during March–June 2021. This sequence started on 27 March with a mainshock of moment magnitude (Mw) 5.2 occurring at 13:47 coordinated universal time (UTC). No foreshock was observed before this mainshock. The sequence lasted approximately three months, until the end of June 2021. Approximately 200 seismic events were recorded by the regional seismic network during this time, including four M ≥ 4.0 earthquakes. The 27 March 2021 earthquake was one of the strongest instrumentally recorded events in the area bounded approximately by the Ancona–Zadar line to the north and the Gargano–Dubrovnik line to the south. The mainshock originated at a focal depth of 9.9 km. The seismicity spread from the mainshock up-dip and down-dip along a northeast-dipping plane. Here, we investigate the geometry of the fault activated by this seismic sequence by using sP depth phases. We aim to significantly reduce the large uncertainties associated with the hypocentral locations of offshore earthquakes beneath the Adriatic Sea—an area that plays a fundamental role in the geodynamics of the Mediterranean. These refined earthquake locations also allow us to make inferences with regards to the seismotectonic context responsible for the analyzed seismicity, thus identifying a structure (here referred to as the MidAdriatic fault) consisting of a northwest–southeast-striking thrust fault with a ∼ 35° northeast-dipping plane. The use of depth-phase arrival times to constrain off-network event locations is of particular interest in Italy due to both the peculiar shape of the peninsula and the extreme scarcity of seafloor stations, the cost and management of which are very expensive and complex. Here, we present the first attempt to apply this off-network locating technique to the Italian offshore seismicity research with the aim of improving hazard estimations in these hard-to-monitor regions.
    Description: Published
    Description: 480–493
    Description: OST3 Vicino alla faglia
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    facet.materialart.
    Unknown
    In:  Zoologische Mededelingen vol. 17 no. 3, pp. 11-14
    Publication Date: 2024-03-28
    Description: Unter dem mir von Herrn Dr. F. P. Koumans freundlichst überlassenen Hemirhamphiden-Material des Rijksmuseum van Natuurlijke Historie te Leiden ist eine Serie einer neuen Zenarchopterus-Art, die ich wegen der Form der Anale beim erwachsenen Männchen bezeichne als: Zenarchopterus xiphophorus nov. spec. Mus. Leiden:Belawan-Deli, Sumatra; 4 ♂ von 12.5, 12.5, 13.0, 13.5 cm; 2 ♀ von 13.0, 17.0 cm. ♂ D 15; A 10—11; P 11; V 6; Sq. 1. ca. 40. ♀ D 14; A 11—12; P 11; V 6; Sq. 1. ca. 40. Oberschnabel etwas breiter als lang; Länge sechs- bis siebenmal im Schnabelfortsatz enthalten. Analpapille beim ♂ gross mit besonderer Spitze, nicht beschuppt, ♀ ohne. Iriszipfel nicht mehr zu finden. ♂: Vierter D-Strahl verbreitert und um mehr als die Flossenhöhe verlängert; der 4. Strahl ist so stark gebogen, dass — wenigstens bei den erwachsenen konservierten Tieren — der Klunker des Strahlenendes neben dem Silberstreifen an der Körperseite liegt. ♂ A dreiteilig, im vorderen Teil 5 dünne Gliederstrahlen; 6. Strahl stark verdickt, verbreitert, gefiedert und etwa viermal so lang wie der 5., sodass das Ende des 6. bei erwachsenen ♂ noch weit über den Hinterrand der Caudale hinweg ragt. Bei den 12.5 cm langen ♂ überragt der 6. Strahl das C-Ende noch nicht, wohl aber die C-Basis. Im Gegensatz zu Z. brevirostris Gthr. legt sich bei der neuen Art der 6. Strahl nicht neben die Körperseite, sondern bleibt in der Flossenebene unterhalb der Unterkante des Fisches. Hinter dem verlängerten und verbreiterten 6. Strahl folgen der 7.—10. (11.) A-Strahl als selbständiges Flösschen von
    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 ...
  • 11
    Publication Date: 2024-03-28
    Description: Water frogs (genus Pelophylax) are one of the most widespread and diverse, but also most invasive amphibians of the Western Palearctic region. As such, Pelophylax studies face the challenge of identifying similar taxa that hybridize in sympatry. For this purpose, the nuclear marker serum albumin intron 1 (SAI-1) has been used for over a decade in Pelophylax. Initially praised for its diagnosticity, notably to discriminate common species such as the pool frog (P. lessonae), the marsh frog (P. ridibundus) and their hybridogenetic hybrid the edible frog (P. esculentus) without sequencing (by amplicon length polymorphism), SAI-1 was later questioned due to misidentifications and doubtful patterns of genetic divergence. In this study, we incorporate an up-to-date multilocus phylogeographic framework spanning the entire Pelophylax diversification, to re-assess the performance of SAI-1 for lineage identification and discovery. We show that SAI-1 sequences discriminate all Palearctic water frog species and most of their phylogeographic lineages, enabling us to map their distributions and identify the genomes of hybridogenetic hybrids. However, the phylogeny of SAI-1 is aberrant and unrepresentative of the evolutionof the genus. In particular, differentiated P. l. lessonae alleles segregating in the Alpine region mimic a species-level divergence that is not recovered by any other marker. Moreover, the indel polymorphism that supposedly distinguishes P. lessonae from P. ridibundus, as well as the main P. ridibundus lineages from the Balkans (P. r. ridibundus vs kurtmuelleri), are not diagnostic across the entire range of these taxa. Hence, SAI-1 is neither the panacea for nor the nemesis of Pelophylax genotyping. Sequencing SAI-1 shall continue to offer a reliable and informative preliminary approach of single-gene barcoding identification of lineages, but analyses without sequencing, and other applications such as phylogenetic and taxonomic inferences, should be avoided.
    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 ...
  • 12
    Publication Date: 2024-03-28
    Description: Cycloclypeus carpenteri is one of the deepest living large benthic foraminifera. It has an obligatory relationship with diatom photosymbionts, and, in addition, houses a diverse prokaryotic community. Variations in the eukaryotic and prokaryotic endobiotic community composition might be key in allowing Cycloclypeus to occur in low light environments. We assessed the variability of the prokaryotic and eukaryotic communities associated with Cycloclypeus along a depth gradient from 50 to 130 m at two locations in the Federated States of Micronesia (Northwest Pacific) by metabarcoding of the 18S V9 rRNA region for eukaryotes and the 16S V3-V4 rRNA region for prokaryotes. We observed a single foraminiferal operational taxonomic unit (OTU), as well as a single dominant diatom OTU that was abundant in all sequenced specimens. Both the prokaryotic and the eukaryotic endobiotic communities (excluding the dominant diatom) changed with water depth and associated irradiance levels. We observed a distinct change in the prokaryotic community composition around 90–100 m water depth at Pohnpei, equivalent to ∼1% surface radiation. This change in microbial communities in the Cycloclypeus holobiont suggests a potential role of the associated microbial communities in accommodating differences in (micro)- habitat, although we cannot exclude that the prokaryote community is to a large extent driven by their community composition in the ambient environment.
    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 ...
  • 13
    Publication Date: 2024-03-28
    Description: Ecological indicators for monitoring strategies are expected to combine three major characteristics: ecological significance, statistical credibility, and cost-effectiveness. Strategies based on stranding networks rank highly in cost-effectiveness, but their ecological significance and statistical credibility are disputed. Our present goal is to improve the value of stranding data as population indicator as part of monitoring strategies by constructing the spatial and temporal null hypothesis for strandings. The null hypothesis is defined as: small cetacean distribution and mortality are uniform in space and constant in time. We used a drift model to map stranding probabilities and predict stranding patterns of cetacean carcasses under H0 across the North Sea, the Channel and the Bay of Biscay, for the period 1990–2009. As the most common cetacean occurring in this area, we chose the harbour porpoise Phocoena phocoena for our modelling. The difference between these strandings expected under H0 and observed strandings is defined as the stranding anomaly. It constituted the stranding data series corrected for drift conditions. Seasonal decomposition of stranding anomaly suggested that drift conditions did not explain observed seasonal variations of porpoise strandings. Long-term stranding anomalies increased first in the southern North Sea, the Channel and Bay of Biscay coasts, and finally the eastern North Sea. The hypothesis of changes in porpoise distribution was consistent with local visual surveys, mostly SCANS surveys (1994 and 2005). This new indicator could be applied to cetacean populations across the world and more widely to marine megafauna.
    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 ...
  • 14
    Publication Date: 2024-03-28
    Description: With global increases in anthropogenic pressures on wildlife populations comes a responsibility to manage them effectively. The assessment of marine ecosystem health is challenging and often relies on monitoring indicator species, such as cetaceans. Most cetaceans are however highly mobile and spend the majority of their time hidden from direct view, resulting in uncertainty on even the most basic population metrics. Here, we discuss the value of long-term and internationally combined stranding records as a valuable source of information on the demographic and mortality trends of the harbour porpoise (Phocoena phocoena) in the North Sea. We analysed stranding records (n = 16,181) from 1990 to 2017 and demonstrate a strong heterogeneous seasonal pattern of strandings throughout the North Sea, indicative of season-specific distribution or habitat use, and season-specific mortality. The annual incidence of strandings has increased since 1990, with a notable steeper rise particularly in the southern North Sea since 2005. A high density of neonatal strandings occurred specifically in the eastern North Sea, indicative of areas important for calving, and large numbers of juvenile males stranded in the southern parts, indicative of a population sink or reflecting higher male dispersion. These findings highlight the power of stranding records to detect potentially vulnerable population groups in time and space. This knowledge is vital for managers and can guide, for example, conservation measures such as the establishment of time-areaspecific limits to potentially harmful human activities, aiming to reduce the number and intensity of humanwildlife conflicts.
    Keywords: Surveillance programme ; Wildlife monitoring ; Marine mammal ; Mortality ; North Sea ; Harbour porpoise ; Phocoena phocoena
    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 ...
  • 15
    Publication Date: 2024-03-28
    Description: Background Mosquito-borne diseases are on the rise. While climatic factors have been linked to disease occurrences, they do not explain the non-random spatial distribution in disease outbreaks. Landscape-related factors, such as vegetation structure, likely play a crucial but hitherto unquantified role. Methods We explored how three critically important factors that are associated with mosquito-borne disease outbreaks: microclimate, mosquito abundance and bird communities, vary at the landscape scale. We compared the co-occurrence of these three factors in two contrasting habitat types (forest versus grassland) across five rural locations in the central part of the Netherlands between June and September 2021. Results Our results show that forest patches provide a more sheltered microclimate, and a higher overall abundance of birds. When accounting for differences in landscape characteristics, we also observed that the number of mosquitoes was higher in isolated forest patches. Conclusions Our findings indicate that, at the landscape scale, variation in tree cover coincides with suitable microclimate and high Culex pipiens and bird abundance. Overall, these factors can help understand the non-random spatial distribution of mosquito-borne disease outbreaks.
    Keywords: Birds ; Culex pipiens ; Forest ; Grassland ; Habitat fragmentation ; Microclimate ; Usutu virus ; West Nile virus
    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 ...
  • 16
    Publication Date: 2024-03-28
    Description: The Arctic Ocean (AO) is being rapidly transformed by global warming, but its biodiversity remains understudied for many planktonic organisms, in particular for unicellular eukaryotes that play pivotal roles in marine food webs and biogeochemical cycles. The aim of this study was to characterize the biogeographic ranges of species that comprise the contemporary pool of unicellular eukaryotes in the AO as a first step toward understanding mechanisms that structure these communities and identifying potential target species for monitoring. Leveraging the Tara Oceans DNA metabarcoding data, we mapped the global distributions of operational taxonomic units (OTUs) found on Arctic shelves into five biogeographic categories, identified biogeographic indicators, and inferred the degree to which AO communities of unicellular eukaryotes share members with assemblages from lower latitudes. Arctic/Polar indicator OTUs, as well as some globally ubiquitous OTUs, dominated the detection and abundance of DNA reads in the Arctic samples. OTUs detected only in Arctic samples (Arctic-exclusives) showed restricted distribution with relatively low abundances, accounting for 10–16% of the total Arctic OTU pool. OTUs with high abundances in tropical and/or temperate latitudes (non-Polar indicators) were also found in the AO but mainly at its periphery. We observed a large change in community taxonomic composition across the Atlantic-Arctic continuum, supporting the idea that advection and environmental filtering are important processes that shape plankton assemblages in the AO. Altogether, this study highlights the connectivity between the AO and other oceans, and provides a framework for monitoring and assessing future changes in this vulnerable ecosystem.
    Keywords: Marine protists ; Unicellular ; Phytoplankton ; Global change ; Advection ; Environmental filtering
    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 ...
  • 17
    Publication Date: 2024-03-28
    Description: Aim: Amazonia hosts more tree species from numerous evolutionary lineages, both young and ancient, than any other biogeographic region. Previous studies have shown that tree lineages colonized multiple edaphic environments and dispersed widely across Amazonia, leading to a hypothesis, which we test, that lineages should not be strongly associated with either geographic regions or edaphic forest types. Location: Amazonia. Taxon: Angiosperms (Magnoliids; Monocots; Eudicots). Methods: Data for the abundance of 5082 tree species in 1989 plots were combined with a mega-phylogeny. We applied evolutionary ordination to assess how phylogenetic composition varies across Amazonia. We used variation partitioning and Moran's eigenvector maps (MEM) to test and quantify the separate and joint contributions of spatial and environmental variables to explain the phylogenetic composition of plots. We tested the indicator value of lineages for geographic regions and edaphic forest types and mapped associations onto the phylogeny. Results: In the terra firme and várzea forest types, the phylogenetic composition varies by geographic region, but the igapó and white-sand forest types retain a unique evolutionary signature regardless of region. Overall, we find that soil chemistry, climate and topography explain 24% of the variation in phylogenetic composition, with 79% of that variation being spatially structured (R2= 19% overall for combined spatial/environmental effects). The phylogenetic composition also shows substantial spatial patterns not related to the environmental variables we quantified (R2= 28%). A greater number of lineages were significant indicators of geographic regions than forest types. Main Conclusion: Numerous tree lineages, including some ancient ones (〉66 Ma), show strong associations with geographic regions and edaphic forest types of Amazonia. This shows that specialization in specific edaphic environments has played a long-standing role in the evolutionary assembly of Amazonian forests. Furthermore, many lineages, even those that have dispersed across Amazonia, dominate within a specific region, likely because of phylogenetically conserved niches for environmental conditions that are prevalent within regions.
    Keywords: community assembly ; dispersal limitation ; environmental selection ; evolutionary principal ; component analysis ; indicator lineage analysis ; Moran's eigenvector maps ; neotropics ; Niche ; conservatism ; tropical rain forests
    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 ...
  • 18
    Publication Date: 2024-03-28
    Description: Although the general impacts of zooplankton grazing on phytoplankton communities are clear, we know comparatively less about how specific grazing strategies interact with environmental conditions to shape the size structure of phytoplankton communities. Here, we present a new data-driven, size-based model that describes changes in the size composition of lake phytoplankton under various environmental constraints. The model includes an ecological trade-off emerging from observed allometric relationships between (1) phytoplankton cell size and phytoplankton growth and (2) phytoplankton cell size and zooplankton grazing. In our model, phytoplankton growth is nutrient-dependent and zooplankton grazing varies according to specific grazing strategies, namely, specialists (targeting a narrow range of the size-feeding spectrum) vs. generalists (targeting a wide range of the size-feeding spectrum). Our results indicate that grazing strategies shape the size composition of the phytoplankton community in nutrient-rich conditions, whereas inorganic nutrient concentrations govern phytoplankton biomass. Under oligotrophic regimes, the phytoplankton community is dominated by small cell sizes and the grazers have little to no impact. Under eutrophic regimes, dominating specialist grazers push phytoplankton towards small cells, whereas dominating generalist grazers push phytoplankton towards large cells. Our work highlights that trait-based modeling, based on realistic eco-physiological trade-offs, represents a valuable tool for disentangling the interactive roles played by nutrient regimes and grazing strategies in determining the size compositions of lake phytoplankton. Ultimately, our study offers a quantitative basis for understanding how communities of lake phytoplankton may reorganize in the future in response to changes in nutrient levels and zooplankton grazing strategies.
    Type: info:eu-repo/semantics/article
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 19
    Publication Date: 2024-03-28
    Type: info:eu-repo/semantics/article
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 20
    Publication Date: 2024-03-28
    Description: Sediment mass accumulation rate (MAR) is a proxy for paleoceanographic conditions, especially if biological productivity generated most of the sediment. We determine MAR records from pelagic calcareous sediments in Tasman Sea based on analysis of 11 boreholes and 〉3 million seismic reflection horizon picks. Seismic data from regions of 10,000–30,000 km2 around each borehole were analyzed using data from International Ocean Discovery Program Expedition 371 and other boreholes. Local MAR was affected by deepwater currents that winnowed, eroded, or deposited seafloor sediment. Therefore, it is necessary to average MARs across regions to test paleoceanographic and productivity models. MARs during the Miocene Climate optimum (18–14 Ma) were slightly lower than Quaternary values but increased on southern Lord Howe Rise at 14–13 Ma, when global climate became colder. Intensification of the Indian and East Asian monsoons at ∼8 Ma and ∼3.6 Ma approximately corresponds to the start and end, respectively, of the Biogenic Bloom, which had MARs at least double Quaternary values. On northern Lord Howe Rise, we recognize peak MARs at∼7 Ma and ∼5 Ma. There is no correlation between Neogene MAR and ocean pH or atmospheric CO2 concentration. Neogene MARs are on average higher than Quaternary values. We posit that future long-term productivity in the southwest Pacific could be higher than Quaternary values, but new computer models that can fit our observations are required to test this hypothesis.
    Type: info:eu-repo/semantics/article
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 21
    Publication Date: 2024-03-28
    Type: info:eu-repo/semantics/article
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 22
    Publication Date: 2024-03-28
    Description: Rapid onset of subduction tectonics across the western Pacific convergent margins in the early Eocene was followed by a slower phase of margin growth of the proto Tonga-Kermadec subduction system north of Zealandia during a middle Eocene phase of tectonic adjustment. We present new age constraints from International Ocean Discovery Program Expedition 371 borehole data on deformation events in northern Zealandian sediments that document the formation of the convergent margin boundary northwest of New Zealand. The deformation shows a shortening event that lasted up to 20 myr and acted over distances of ∼1000 km inboard of the evolving plate margin, just northwest of New Zealand. Multichannel seismic profiles tied to our new borehole sites show shortening occurred predominantly between 45 and 35 Ma with some deformation related to slope failure continuing into the Oligocene. The termination of shortening is linked to opening of the backarc basins of the southwest Pacific and the migration of the Tonga-Kermadec Trench to the east which may have removed the structural evidence of the Eocene plate margin. Palaeogene deformation observed inboard of the evolving proto Tonga-Kermadec subduction system indicates that the lithosphere of northern Zealandia, a region of thin continental crust, was strong enough to act as a stress guide. Compressive stresses that caused intraplate folding and faulting developed behind the initiating subduction system with the finite period of deformation indicating the time frame over which an active convergent margin lay along the northern margin of Zealandia.
    Type: info:eu-repo/semantics/article
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 23
    Publication Date: 2024-03-28
    Description: Siliceous marine ecosystems play a critical role in shaping the Earth's climate system by influencing rates of organic carbon burial and marine authigenic clay formation (i.e., reverse weathering). The ecological demise of silicifying organisms associated with the Permian-Triassic mass extinction is postulated to have elevated marine authigenic clay formation rates, resulting in a prolonged greenhouse climate during the Early Triassic. Yet, our understanding of the response of siliceous marine organisms during this critical interval is poor. Whilst radiolarians experienced the strongest diversity loss in their evolutionary history and perhaps also the greatest population decline of silica-secreting organisms during this event, only a small number of Griesbachian (post-extinction) localities that record siliceous organisms are known. Here, we report newly discovered latest Changhsingian to early Griesbachian (Clarkina meishanensis - Hindeodus parvus Zone) radiolarians and siliceous sponge spicules from Svalbard. This fauna documents the survival of a low-diversity radiolarian assemblage alongside stem-group hexactinellid sponges making this the first described account of post-extinction silica-secreting organisms from the Permian/Triassic boundary in a shallow marine shelf environment and a mid-northern paleolatitudinal setting. Our findings indicate that latitudinal diversity gradients for silica-secreting organisms following the mass extinction were significantly altered, and that silica productivity was restricted to high latitude and deep water thermal refugia. This result has potential to further shape our understanding of changes in marine dissolved silica levels and in turn rates of reverse weathering, with implications for our understanding of carbon cycle dynamics during this interval.
    Type: info:eu-repo/semantics/article
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 24
    Publication Date: 2024-03-28
    Description: Life on Earth is diverse at many levels, meaning there is a lot of variety within species and there are many different kinds of species. This biodiversity provides many of the resources that humans need and enhances our quality of life. All of Earth’s organisms are affected by Earth’s climate, but they also influence Earth’s climate. In this article, we show how research on plants, animals, and microbes helps us better understand how living things can both impact and respond to climate change. This research also gives us insight into what the future might be like for life on Earth. Such knowledge will help us to protect our planet—and the living things on it—from the harmful effects of future climate change.
    Type: info:eu-repo/semantics/article
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 25
    Publication Date: 2024-03-28
    Description: Data from International Ocean Discovery Program (IODP) Expedition 371 reveal vertical movements of 1–3 km in northern Zealandia during early Cenozoic subduction initiation in the western Pacific Ocean. Lord Howe Rise rose from deep (∼1 km) water to sea level and subsided back, with peak uplift at 50 Ma in the north and between 41 and 32 Ma in the south. The New Caledonia Trough subsided 2–3 km between 55 and 45 Ma. We suggest these elevation changes resulted from crust delamination and mantle flow that led to slab formation. We propose a “subduction resurrection” model in which (1) a subduction rupture event activated lithospheric-scale faults across a broad region during less than ∼5 m.y., and (2) tectonic forces evolved over a further 4–8 m.y. as subducted slabs grew in size and drove plate-motion change. Such a subduction rupture event may have involved nucleation and lateral propagation of slip-weakening rupture along an interconnected set of preexisting weaknesses adjacent to density anomalies.
    Type: info:eu-repo/semantics/article
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 26
    Publication Date: 2024-03-28
    Type: info:eu-repo/semantics/bookPart
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 27
    Publication Date: 2024-03-28
    Language: English
    Type: info:eu-repo/semantics/report
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 28
    Publication Date: 2024-03-28
    Language: German
    Type: info:eu-repo/semantics/report
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 29
    Publication Date: 2024-03-28
    Type: info:eu-repo/semantics/lecture
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 30
    Publication Date: 2024-03-28
    Description: Introduction: Urban pluvial flooding is a growing concern worldwide as consequence of rising urban population and climate change induced increases in heavy rainfall. Easy-to-implement and fast simulation tools are needed to cope with this challenge. Methods: This study describes the development of the parsimonious, GPU-accelerated hydraulic model RIM2D for urban pluvial flood simulations. This is achieved by considering the built-up urban area as flow obstacles, and by introducing capacity-based approaches to consider urban drainage by infiltration on pervious surfaces and sewer drainage from roofs and sealed surfaces. The model performance was analyzed by simulating 8 heavy rainfall events in a test area in the city of Dresden, Germany. For these events detailed discharge measurements of sewer discharge are available, providing a unique dataset for evaluating the sewer drainage simulation, which is of high importance for realistic pluvial inundation simulations in urban areas. Results and discussion: We show that the model simulates the temporal dynamics of the sewer discharge and the sewer volume within acceptable ranges. Moreover, the erratic variation of the simulated to measured sewer discharge suggests that the deviations from the measurements are caused by the precipitation input rather than the model simplifications. We conclude that RIM2D is a valid tool for urban inundation simulation. Its short simulation runtimes allow probabilistic flood risk assessments and operational flood forecasts.
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 31
    Publication Date: 2024-03-28
    Description: Digital infrastructures have become indispensable in the field of modern research and science. These technological frameworks play a crucial role for the entire research cycle, supporting literature searches, aiding in data collection and analysis, facilitating the creation and publication of scholarly works, and ensuring the thorough documentation and long-term storage of research findings. Additionally, these infrastructures serve as a vital means for networking and communication among peers, creating the essential foundation of an open and transparent science and research ecosystem. Helmholtz employees were invited to join the Helmholtz Open Science Forum "Towards Open Digital Research Ecosystems - Interconnection Infrastructures" on February 14, 2024, where options for the seamless integration of these digital infrastructures have been discussed. Speakers presented insights into diverse efforts to the provision of open infrastructure structures and how their interconnection offers new possibilities for seamless and integrated workflows within the increasingly digitized research. Further, it was examined how such an integrated ecosystem can support open science practices and vice versa
    Language: English
    Type: info:eu-repo/semantics/report
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 32
    Publication Date: 2024-03-28
    Description: Plankton community modeling is a critical tool for understanding the processes that shape marine ecosystems and their impacts on global biogeochemical cycles. These models can be of variable ecological, physiological, and physical complexity. Many published models are either not publicly available or implemented in static and inflexible code, thus hampering adoption, collaboration, and reproducibility of results. Here we present Phydra, an open-source library for plankton community modeling, and Xarray-simlab-ODE (XSO), a modular framework for efficient, flexible, and reproducible model development based on ordinary differential equations. Both tools are written in Python. Phydra provides pre-built models and model components that can be modified and assembled to develop plankton community models of various levels of ecological complexity. The components can be created, adapted, and modified using standard variable types provided by the XSO framework. XSO is embedded in the Python scientific ecosystem and is integrated with tools for data analysis and visualization. To demonstrate the range of applicability and how Phydra and XSO can be used to develop and execute models, we present three applications: (1) a highly simplified nutrient–phytoplankton (NP) model in a chemostat setting, (2) a nutrient–phytoplankton–zooplankton–detritus (NPZD) model in a zero-dimensional pelagic ocean setting, and (3) a size-structured plankton community model that resolves 50 phytoplankton and 50 zooplankton size classes with functional traits determined by allometric relationships. The applications presented here are available as interactive Jupyter notebooks and can be used by the scientific community to build, modify, and run plankton community models based on differential equations for a diverse range of scientific pursuits.
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 33
    Publication Date: 2024-03-28
    Description: On January 22, 2024 the Helmholtz Open Science Office hosted the Second Helmholtz Open Science Forum on the topic of Open Science and Transfer. The online event addressed various aspects and issues around the interplay of Open Science, Technology Transfer, Knowledge Transfer and Citizen Science at the Helmholtz Association. Together with the participants important overlaps were identified against the backdrop of the digital transformation. Open science as a standard for scientific work creates foundations for successful transfer - and both topics can complement each other very well. The Helmholtz-internal event gave insights into current projects and initiatives relating to transfer to society, business and industry. Moreover, Helmholtz initiatives for Citizen Science and the successful practical implementation of Open Hardware were presented. The event also offered opportunities for networking and the exchange of ideas. This report documents the Second Helmholtz Open Science Forum on Open Science and Transfer.
    Language: English
    Type: info:eu-repo/semantics/report
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 34
    Publication Date: 2024-03-28
    Description: On April 13, 2023, the Helmholtz Open Science Office, together with the joint Task Group “Open Access Transformation” of the Working Groups Open Science and Library and Information Management organized a Helmholtz Open Science Forum on Scholar-Led Publishing at Helmholtz. Around 100 people registered for participation. The high level of interest in this event indicates its relevance in the ongoing Open Access-Transformation. Diamond Open Access and scholar-led publishing are current buzzwords in this context; focusing on the stronger localization of scientific publishing opportunities in the scientific environment beyond profit- oriented platforms. The first draft of a position statement on scholar-led publishing at Helmholtz, which was developed together with the Task Group Open Access Transformation, was presented at the forum and participants were invited to discuss and comment on it. Presentations and discussions provided insights into various operating models and workflows of external Diamond Open Access journals, service providers and publication services already active in the natural sciences, as well as those operated by Helmholtz Centers. In addition, the EU Commission's perspectives on the further development of the Open Research Europe publication platform were presented.
    Language: English
    Type: info:eu-repo/semantics/report
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 35
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Loginova, Alexandra; Thomsen, Soeren; Dengler, Marcus; Lüdke, Jan; Engel, Anja (2019): Diapycnal dissolved organic matter supply into the upper Peruvian oxycline. Biogeosciences, 16(9), 2033-2047, https://doi.org/10.5194/bg-16-2033-2019
    Publication Date: 2024-03-28
    Description: Concentrations of dissolved organic carbon (DOC), total dissolved nitrogen (TDN), amino acids and carbohydrates
    Keywords: amino acids; carbohydrates; Climate - Biogeochemistry Interactions in the Tropical Ocean; Dissolved Organic Matter; eastern tropical South Pacific; SFB754
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 36
    Publication Date: 2024-03-28
    Description: Sediment and pore water samples were collected during the M147 cruise of Research Vessel Meteor in April and May 2018. Additional sediment samples (GeoB 4417-5 and GeoB 4409-2) were collected during the M38-2 cruise in March 1997. Total element concentrations (Fe, Al, K) of the solid phase were measured after acid digestion (HF, HNO3 and HClO4) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase iron speciation data were measured following single step sodium dithionite extraction (FeD) or sequential Fe extraction (FeAc, FeDith, FeOxal) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase pyrite concentrations (FePy) were calculated stoichiometrically from photometrically measured S2- released via chromium(II) chloride reduction. Total organic carbon (TOC) of the sediment samples was measured in an Elemental Analyzer (Euro EA). Prior to analysis carbon bound to carbonate minerals was removed by leaching the sediment with 0.25 N HCl. Pore water nitrate concentrations were measured on board with a SEAL QuAAtro continuous flow auto analyzer. Pore water samples for dissolved element analysis were acidified with HCl to pH 〈 2 after sampling. Depending on the concentration range, pore water K and Fe was measured by inductively coupled plasma optical emission spectrometry (Varian 720 ES) or inductively coupled plasma mass spectrometry (Agilent 7500).
    Keywords: continental shelf; Fe speciation; porewater; sediment
    Type: Dataset
    Format: application/zip, 17 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 37
    Publication Date: 2024-03-28
    Description: The volume low-field susceptibility (k) and the Anhysteretic Remanent Magnetization (ARM) divided by k were measured using u-channel sampling technique on 2G cryogenic magnetometers at the Laboratoire des Sciences du Climat et de l'Environnement (LSCE). The Summer sea surface temperature has been determined by N. pachyderma s. percentages and planktic foraminifera assemblages (in the 〉150µ fraction) at LSCE. The percentage of clay and silt were measured at Laboratoire d'Océanologie et de Géosciences, Université de Lille, using a laser (0.02 -2000 µm) Malvern Mastersizer 2000.
    Keywords: Antarctic Circumpolar Current; magnetic parameters; mineralogic parameters; Summer sea surface temperature
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 38
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Fiedler, Björn; Grundle, Damian; Schütte, Florian; Karstensen, Johannes; Löscher, Carolin R; Hauss, Helena; Wagner, Hannes; Loginova, Alexandra; Kiko, Rainer; Silva, Pericles; Tanhua, Toste; Körtzinger, Arne (2016): Oxygen utilization and downward carbon flux in an oxygen-depleted eddy in the eastern tropical North Atlantic. Biogeosciences, 13(19), 5633-5647, https://doi.org/10.5194/bg-13-5633-2016
    Publication Date: 2024-03-28
    Description: The occurrence of mesoscale eddies that develop suboxic environments at shallow depth (about 40-100 m) has recently been reported for the eastern tropical North Atlantic (ETNA). Their hydrographic structure suggests that the water mass inside the eddy is well isolated from ambient waters supporting the development of severe near-surface oxygen deficits. So far, hydrographic and biogeochemical characterization of these eddies was limited to a few autonomous surveys, with the use of moorings, under water gliders and profiling floats. In this study we present results from the first dedicated biogeochemical survey of one of these eddies conducted in March 2014 near the Cape Verde Ocean Observatory (CVOO). During the survey the eddy core showed oxygen concentrations as low as 5 µmol kg-1 with a pH of around 7.6 at approximately 100 m depth. Correspondingly, the aragonite saturation level dropped to 1 at the same depth, thereby creating unfavorable conditions for calcifying organisms. To our knowledge, such enhanced acidity within near-surface waters has never been reported before for the open Atlantic Ocean. Vertical distributions of particulate organic matter and dissolved organic matter (POM and DOM), generally showed elevated concentrations in the surface mixed layer (0-70 m), with DOM also accumulating beneath the oxygen minimum. With the use of reference data from the upwelling region where these eddies are formed, the oxygen utilization rate was calculated by determining oxygen consumption through the remineralization of organic matter. Inside the core, we found these rates were almost 1 order of magnitude higher (apparent oxygen utilization rate (aOUR); 0.26 µmol kg-1 day-1) than typical values for the open North Atlantic. Computed downward fluxes for particulate organic carbon (POC), were around 0.19 to 0.23 g C m-2 day-1 at 100 m depth, clearly exceeding fluxes typical for an oligotrophic open-ocean setting. The observations support the view that the oxygen-depleted eddies can be viewed as isolated, westwards propagating upwelling systems of their own, thereby represent re-occurring alien biogeochemical environments in the ETNA.
    Keywords: CARBOCHANGE; CARBOOCEAN; Changes in the carbon uptake and emissions by oceans in a changing climate; Climate - Biogeochemistry Interactions in the Tropical Ocean; Marine carbon sources and sinks assessment; SFB754; SOPRAN; Surface Ocean Processes in the Anthropocene
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 39
    Publication Date: 2024-03-28
    Description: The volume low-field susceptibility (k) and the Anhysteretic Remanent Magnetization (ARM) divided by k were measured using u-channel sampling technique on 2G cryogenic magnetometers at the Laboratoire des Sciences du Climat et de l'Environnement (LSCE). The percentage of clay and silt were measured at Laboratoire d'Océanologie et de Géosciences, Université de Lille, using a laser (0.02 -2000 µm) Malvern Mastersizer 2000.
    Keywords: last deglaciation; magnetic parameters; mineralogic parameters
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 40
    Publication Date: 2024-03-28
    Description: Marine Isotope Stage (MIS) M2, 3.3 Ma, is an isolated cold stage punctuating the benthic oxygen isotope (δ¹⁸O) stratigraphy of the warm Piacenzian interval of the late Pliocene Epoch. The prominent (~0.65‰) δ¹⁸O increase that defines MIS M2 has prompted debate over the extent to which it signals an early prelude to the rhythmic extensive glaciations of the northern hemisphere that characterise the Quaternary and raised questions about the forcing mechanisms responsible. Recent work suggests that CO₂ storage in the deep Atlantic Ocean played an important role in these events but detailed reconstructions of deep ocean chemical stratification are needed to test this idea and competing hypotheses. Here we present new records of the Nd isotope composition of fish debris and δ¹³C and B/Ca ratios of benthic foraminifera from the northwest and southeast Atlantic Ocean. Our novel geochemical data show that, in contrast to major Quaternary glaciations such as MIS 2 (~21 ka) and MIS 100 (~2.52 Ma), the deep North Atlantic Ocean was weakly chemically stratified during MIS M2. We show that Southern Component Water incursion into the Atlantic Ocean was limited to the deep South Atlantic basin during MIS M2 and peaked well before (~10-15-kyr) the atmospheric CO₂ minimum. Our findings imply that the deep Atlantic Ocean was not the principle sink of CO₂ sequestered from the atmosphere during MIS M2, implicating a different CO₂ storage deep-water reservoir mechanism, presumably Southern Component Water incursion into the Pacific Ocean. Weak chemical stratification in the deep Atlantic Ocean during MIS M2 relative to MIS 100 and 2 suggests comparatively active Atlantic meridional overturning circulation. That suggestion is consistent with the warmth of the high latitude North Atlantic during MIS M2 - surface water temperatures cooled during M2 but only to Holocene values. Our findings may help to explain the paucity of evidence for extensive early glaciation of the northern hemisphere during M2 but leave open the possibility of ice sheet advance on Antarctica.
    Keywords: AMOC; Atlantic circulation; B/Ca; Last Glacial; MIS 100; MIS M2; Nd isotopes
    Type: Dataset
    Format: application/zip, 4 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 41
    Publication Date: 2024-03-28
    Description: The data contain the age model data for IODP Expedition 383 Sites U1540 and U1541. The age model of Site U1540 is on graphical correlation (tuning) to IODP Site U1541. Opal content data and opal/CaCO3 ratios are represented for IODP Expedition 383 Sites and POLARSTERN Cruise PS75 sediment cores. The data contain the ACC strength record at IODP Site U1540 and Site U1541 and several PS75 sediment cores. The absolute ACC strength record was calculated from sortable silt data using a formula from the Scotia Sea by McCave et al. (2017). The sortable silt record was calculated from ln(Zr/Rb) using a regional calibration from discrete grain-size measurement. The ln(Zr(/Rb record was interpolated to 0.5 kyr and 9-point adjacent averaged.
    Keywords: Age model; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Stratigraphy
    Type: Dataset
    Format: application/zip, 12 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 42
    Publication Date: 2024-03-28
    Keywords: Absorption coefficient, 325 nm; Absorption coefficient, 355 nm; Absorption coefficient, 375 nm; Cape Verde; CapeVerde_2012_Mesocosm; Carbon, organic, dissolved; Climate - Biogeochemistry Interactions in the Tropical Ocean; Coomassie stainable particles; Coomassie stainable particles, abundance; Coomassie stainable particles, equivalent spherical diameter; DATE/TIME; Day of experiment; Fluorescence, dissolved organic matter, component; MESO; Mesocosm experiment; Nitrogen, organic, dissolved; Nitrogen, total dissolved; Ratio; Run ID; Sample code/label; SFB754; Slope; Slope between 275 nm and 295 nm; Slope between 350 nm and 400 nm; Slope ratio; Spectral slope of colored dissolved organic matter absorption; Transparent exopolymer particles; Transparent exopolymer particles, abundance; Transparent exopolymer particles, equivalent spherical diameter; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 6236 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 43
    Publication Date: 2024-03-28
    Description: Important data from the African Centre of Meteorological Applications for Development (ACMAD) collection have been recently rescued from unstable fiche media and scanned to digital images by the EU funded Copernicus Climate Change Service and the Royal Meteorological Institute (RMI) of Belgium. The team at the C3S2-311 Lot 1 Collection and Processing of In Situ Observations service led by the Irish Climate Analysis and Research UnitS (ICARUS) at Maynooth University, Ireland enrolled the help of 2nd year university undergraduate students to transcribe quickly and effectively some of these important ACMAD meteorological surface observations. New and unique datasets for Macenta, Guinea (1947-1953) and Andapa, Madagascar (1949-1957) were digitised with each station consisting of sub-daily observations for: cloud, temperature, humidity, evaporation, pressure and wind as well as daily observations for: evaporation, precipitation and temperature. The newly digitised Sub-Saharan African data will increase the temporal and spatial coverage of data in this important data-sparse region where climate change impact studies are crucial., Students gained new skills and a deep appreciation of historical climatology while helping the global scientific community unearth new insights into past sub-Saharan African climate. The Climate Data Rescue Africa project (CliDaR-Africa project) model has the potential for a broader roll-out to other educational contexts and there is certainly no shortage of data to be rescued with millions of images remaining untouched. Therefore, this paper provides details of the project, and all supporting information such as project guidelines and templates to enable other organisations to instigate similar programs in future.
    Keywords: Climate data; meteorological observations; Sub-Saharan Africa
    Type: Dataset
    Format: application/zip, 28 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 44
    Publication Date: 2024-03-28
    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 ...
  • 45
    Publication Date: 2024-03-28
    Description: Two 7-day mesocosm experiments were conducted in October 2012 at the Instituto Nacional de Desenvolvimento das Pescas (INDP), Mindelo, Cape Verde. Surface water was collected at night before the start of the respective experiment with RV Islândia south of São Vicente (16°44.4'N, 25°09.4'W) and transported to shore using four 600L food safe intermediate bulk containers. Sixteen mesocosm bags were distributed in four flow-through water baths and shaded with blue, transparent lids to approximately 20% of surface irradiation. Mesocosm bags were filled from the containers by gravity, using a submerged hose to minimize bubbles. The accurate volume inside the individual bags was calculated after addition of 1.5 mmol silicate and measuring the resulting silicate concentration. The volume ranged from 105.5 to 145 L. The experimental manipulation comprised addition of different amounts of inorganic N and P. In the first experiment, the P supply was changed at constant N supply in thirteen of the sixteen units, while in the second experiment the N supply was changed at constant P supply in twelve of the sixteen units. In addition to this, “cornerpoints” were chosen that were repeated during both experiments. Four cornerpoints should have been repeated, but setting the nutrient levels in one mesocosm was not succesfull and therefore this mesocosm also was set at the center point conditions. Experimental treatments were evenly distributed between the four water baths. Initial sampling of the mesocosms on day 1 of each run was conducted between 9:45 and 11:30. After nutrient manipulation, sampling was conducted on a daily basis between 09:00 and 10:30 for days 2 to 8.
    Keywords: Cape Verde; CapeVerde_2012_Mesocosm; Climate - Biogeochemistry Interactions in the Tropical Ocean; Identification; MESO; Mesocosm experiment; Nitrate; Nitrate and Nitrite; Nitrate and Nitrite, standard deviation; Nitrite; Nitrite, standard deviation; Nitrogen/Phosphorus ratio; Phosphate; Phosphate, standard deviation; Run ID; Sample code/label; SFB754; Silicate; Silicate, standard deviation; Treatment; Volume
    Type: Dataset
    Format: text/tab-separated-values, 586 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 46
    Publication Date: 2024-03-28
    Description: Two 7-day mesocosm experiments were conducted in October 2012 at the Instituto Nacional de Desenvolvimento das Pescas (INDP), Mindelo, Cape Verde. Surface water was collected at night before the start of the respective experiment with RV Islândia south of São Vicente (16°44.4'N, 25°09.4'W) and transported to shore using four 600L food safe intermediate bulk containers. Sixteen mesocosm bags were distributed in four flow-through water baths and shaded with blue, transparent lids to approximately 20% of surface irradiation. Mesocosm bags were filled from the containers by gravity, using a submerged hose to minimize bubbles. The accurate volume inside the individual bags was calculated after addition of 1.5 mmol silicate and measuring the resulting silicate concentration. The volume ranged from 105.5 to 145 L. The experimental manipulation comprised addition of different amounts of inorganic N and P. In the first experiment, the P supply was changed at constant N supply in thirteen of the sixteen units, while in the second experiment the N supply was changed at constant P supply in twelve of the sixteen units. In addition to this, “cornerpoints” were chosen that were repeated during both experiments. Four cornerpoints should have been repeated, but setting the nutrient levels in one mesocosm was not succesfull and therefore this mesocosm also was set at the center point conditions. Experimental treatments were evenly distributed between the four water baths. Initial sampling of the mesocosms on day 1 of each run was conducted between 9:45 and 11:30. After nutrient manipulation, sampling was conducted on a daily basis between 09:00 and 10:30 for days 2 to 8.
    Keywords: Cape Verde; CapeVerde_2012_Mesocosm; Climate - Biogeochemistry Interactions in the Tropical Ocean; Comment; DATE/TIME; MESO; Mesocosm experiment; Radiation, photosynthetically active; SFB754; Status
    Type: Dataset
    Format: text/tab-separated-values, 858 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 47
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Manhães, Adriana Pellegrini; Mazzochini, Guilherme Gerhardt; Oliveira-Filho, Ary Teixeira; Ganade, Gislene; Carvalho, Adriana Rosa (2016): Spatial associations of ecosystem services and biodiversity as a baseline for systematic conservation planning. Diversity and Distributions, 22(9), 932-943, https://doi.org/10.1111/ddi.12459
    Publication Date: 2024-03-28
    Description: Aim: Protected areas are frequently defined on the basis of biological importance. Ecosystem services are expected to be under protection when biodiversity is preserved; however, new approaches are needed to confirm this statement. We evaluated how spatial associations between ecosystem services and plant biodiversity on a large spatial scale influence their representativeness in current protected areas. Location: Brazilian seasonally tropical dry forest (Caatinga). Methods: We produced woody plant biodiversity maps (species richness, narrow-range species richness and beta diversity) using species distribution modelling. We estimated regulating services (water purification, carbon storage and erosion control), provisioning services (water supply, fodder and agriculture) and supporting services (water balance, net primary productivity and soil fertility) using primary data and a proxy-based approach. We performed spatial correlation analyses between biodiversity and ecosystem services using Pearson's correlation test. After estimating the percentage of hotspot areas of biodiversity and ecosystem services presented in two types of protected areas (strict protection and sustainable use), we compared it to expected distribution by null model. Results: Mostly weak and intermediary positive correlations arose among biodiversity and ecosystem services (beta diversity with water balance and species richness with water purification and carbon storage). Negative correlations occurred among water balance with both species richness and narrow-range species richness. Strict protection areas were well represented in terms of carbon storage and underrepresented for fodder and agriculture. Sustainable use protected areas were important for water balance. Plant biodiversity variables were not represented in current protected areas. Main conclusions: Positive correlations between biodiversity and ecosystem services do not assure the protection of these targets in protected areas. Surrogates choice based only on spatial correlations might not effectively protect biodiversity and ecosystem services. Selection of priority areas must include biodiversity and ecosystem services as distinct conservation targets.
    Keywords: Brazil; Caatinga; File content; File format; File name; File size; MULT; Multiple investigations; Uniform resource locator/link to file
    Type: Dataset
    Format: text/tab-separated-values, 50 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 48
    Publication Date: 2024-03-28
    Description: Two 7-day mesocosm experiments were conducted in October 2012 at the Instituto Nacional de Desenvolvimento das Pescas (INDP), Mindelo, Cape Verde. Surface water was collected at night before the start of the respective experiment with RV Islândia south of São Vicente (16°44.4'N, 25°09.4'W) and transported to shore using four 600L food safe intermediate bulk containers. Sixteen mesocosm bags were distributed in four flow-through water baths and shaded with blue, transparent lids to approximately 20% of surface irradiation. Mesocosm bags were filled from the containers by gravity, using a submerged hose to minimize bubbles. The accurate volume inside the individual bags was calculated after addition of 1.5 mmol silicate and measuring the resulting silicate concentration. The volume ranged from 105.5 to 145 L. The experimental manipulation comprised addition of different amounts of inorganic N and P. In the first experiment, the P supply was changed at constant N supply in thirteen of the sixteen units, while in the second experiment the N supply was changed at constant P supply in twelve of the sixteen units. In addition to this, “cornerpoints” were chosen that were repeated during both experiments. Four cornerpoints should have been repeated, but setting the nutrient levels in one mesocosm was not succesfull and therefore this mesocosm also was set at the center point conditions. Experimental treatments were evenly distributed between the four water baths. Initial sampling of the mesocosms on day 1 of each run was conducted between 9:45 and 11:30. After nutrient manipulation, sampling was conducted on a daily basis between 09:00 and 10:30 for days 2 to 8.
    Keywords: 19-Butanoyloxyfucoxanthin; 19-Hexanoyloxyfucoxanthin; Abundance per volume; Alloxanthin; Ammonium; amoA gene, copy number; Bacteria; Bacterial nitrogen fixation, Chrocosphaera; Bacterial nitrogen fixation, Cyanothese; Bacterial nitrogen fixation, filamentous; Bacterial nitrogen fixation, GammaAO; Bacterial nitrogen fixation, UCYN-A; beta-Carotene, beta,beta-Carotene; Cape Verde; CapeVerde_2012_Mesocosm; Carbon, organic, particulate; Carbon fixation rate; Chlorophyll a; Chlorophyll b; Chlorophyll c2; Chlorophyll c3; Climate - Biogeochemistry Interactions in the Tropical Ocean; DATE/TIME; Day of experiment; Diadinoxanthin; Diatoxanthin; Divinyl chlorophyll a; Divinyl chlorophyll b; Flag; Fucoxanthin; Identification; MESO; Mesocosm experiment; Nitrate; Nitrate and Nitrite; Nitrate and Nitrite, standard deviation; Nitrite; Nitrite, standard deviation; Nitrogen, organic, dissolved; Nitrogen, organic, particulate; Nitrogen fixation rate; Oxygen; Peridinin; pH; Phosphate; Phosphate, standard deviation; Phosphorus, organic, dissolved; Phosphorus, organic, particulate; Prasinoxanthin; Prochlorococcus; Run ID; Salinity; Sample code/label; SFB754; Silicate; Silicate, standard deviation; Sum; Temperature, water; Violaxanthin; Zeaxanthin
    Type: Dataset
    Format: text/tab-separated-values, 24942 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 49
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Soppa, Mariana A; Pefanis, Vasileios; Hellmann, Sebastian; Losa, Svetlana N; Hölemann, Jens A; Martynov, Fedor; Heim, Birgit; Janout, Markus A; Dinter, Tilman; Rozanov, Vladimir V; Bracher, Astrid (2019): Assessing the Influence of Water Constituents on the Radiative Heating of Laptev Sea Shelf Waters. Frontiers in Marine Science, 6, https://doi.org/10.3389/fmars.2019.00221
    Publication Date: 2024-03-28
    Description: This data set is composed of in situ measurements of salinity, temperature, coloured dissolved organic matter absorption coefficient at 443 nm (aCDOM(443)), suspended particulate matter (SPM) and chlorophyll-a concentration (Chla) measured during the TRANSDRIFT XVII and TRANSDRIFT XIX expeditions in August-September 2010 and 2011, respectively. A detailed description of water sampling and analysis for the TRANSDRIFT-XVII expedition can be found in Heim et al. (2014).
    Keywords: Absorption coefficient, colored dissolved organic matter at 443 nm; Calculated from weight loss after drying; Campaign; Chlorophyll a; CTD, Sea-Bird, SBE 19plus; CTD/Rosette; CTD-RO; DATE/TIME; Depth, bathymetric; DEPTH, water; Event label; Fluorometer, WET Labs; Laptev Sea; Laptev Sea System; Latitude of event; Longitude of event; LSS; NE10_10-1; NE10_1-1; NE10_12-3; NE10_13-1; NE10_14; NE10_15-1; NE10_16-1; NE10_17-1; NE10_19-1; NE10_20-1; NE10_2-1; NE10_21-1; NE10_22-1; NE10_23-3; NE10_24-1; NE10_27; NE10_28-1; NE10_29-1; NE10_30-1; NE10_3-1; NE10_32-1; NE10_33-1; NE10_34-4; NE10_35-1; NE10_36-1; NE10_37-1; NE10_38-1; NE10_40-1; NE10_4-1; NE10_42-1; NE10_43; NE10_44-1; NE10_45; NE10_5-1; NE10_6-2; NE10_8-1; NE10_9-1; Nikolay Evgenov; Salinity; Station label; Suspended matter, particulate/solids; TD10; TD11; Temperature, water; Transdrift-XIX; Transdrift-XVII; WET Labs CDOM; Yakov Smirnitskiy; YS11_1; YS11_10; YS11_11; YS11_12; YS11_13; YS11_14; YS11_15; YS11_16-1; YS11_17; YS11_18; YS11_19; YS11_2; YS11_20-1; YS11_21-1; YS11_22-1; YS11_23-1; YS11_24-1; YS11_25-1; YS11_26-1; YS11_27-1; YS11_28-1; YS11_29-1; YS11_3; YS11_4-1; YS11_5-1; YS11_6; YS11_7; YS11_8; YS11_9
    Type: Dataset
    Format: text/tab-separated-values, 485 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 50
    Publication Date: 2024-03-28
    Keywords: Absorption coefficient, colored dissolved organic matter at 254 nm; Absorption coefficient, colored dissolved organic matter at 325 nm; BIGO; Biogeochemical observatory; Carbon, organic, dissolved; Climate - Biogeochemistry Interactions in the Tropical Ocean; DEPTH, water; Distance; Event label; Fluorescence, dissolved organic matter, component; LATITUDE; LONGITUDE; M136; M136_415-1; M136_471-1; M136_488-1; M136_503-1; M136_533-1; M136_553-1; Meteor (1986); Nitrogen, total dissolved; Oxygen; Salinity; Sample code/label; SFB754; Slope between 275 nm and 295 nm; Station label; Temperature, water; Time in minutes
    Type: Dataset
    Format: text/tab-separated-values, 859 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 51
    Publication Date: 2024-03-28
    Keywords: Absorption coefficient, colored dissolved organic matter at 254 nm; Absorption coefficient, colored dissolved organic matter at 325 nm; BIGO; Biogeochemical observatory; Carbon, organic, dissolved; Climate - Biogeochemistry Interactions in the Tropical Ocean; DEPTH, water; Distance; Event label; Fluorescence, dissolved organic matter, component; LATITUDE; LONGITUDE; M136; M136_412-1; M136_426-1; M136_441-1; M136_471-1; M136_483-1; M136_488-1; M136_503-1; M136_533-1; M136_553-1; M136_577-1; M137; M137_651-1; M137_692-1; Meteor (1986); Multicorer with television; Nitrogen, total dissolved; Oxygen; Salinity; Sample code/label; SFB754; Slope between 275 nm and 295 nm; Station label; Temperature, water; Time in minutes; TVMUC
    Type: Dataset
    Format: text/tab-separated-values, 1248 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 52
    facet.materialart.
    Unknown
    PANGAEA
    Publication Date: 2024-03-28
    Description: LADCP measurements were performed on all research cruises that concentrated on open ocean areas (see Table C3) while on cruises that worked mostly in shallow waters, ocean current measurements by the shipboard ADCP (see section 4.1.8) were deemed sufficient. GEOMAR used a two-instrument configuration with two Teledyne RDI 300 kHz workhorse ADCPs mounted in down- and up-looking positions. Data collection and processing was performed according to recommendations in the GO-SHIP manual (Thurnherr et al., 2010).
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 12 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 53
    Publication Date: 2024-03-28
    Description: Ocean turbulence measurement programs were carried out during 22 cruises to quantify the dissipation rate of turbulent kinetic energy and infer rates of turbulent mixing (see Table C6). The used shipboard microstructure profiling systems 165 (MSS) were manufactured by Sea & Sun Technology and consisted of a profiler (MSS90-D, S/N 26, 32 and 73), a winch having 500-1000 m of cable and a data interface. All profilers were equipped with three microstructure shear sensors, a fast- response temperature sensor (PF07), an acceleration sensor and two tilt sensors as well as conductivity (Sea & Sun Tech.), temperature (Sea & Sun Tech.), pressure (Keller), turbidity (Seapoint) and oxygen sensors sampling with a lower response time. The profilers were optimized to sink at a rate of 0.5-0.6 m s-1. Standard processing procedures were used to determine 170 the rate of kinetic energy dissipation of turbulence in the water column (see Schafstall et al. (2010) for a detailed description). Additionally, during several autonomous glider missions, a microstructure probe was mounted to the top of the gliders. These probes (MicroRider) were manufactured by Rockland Scientific and carried two microstructure shear and temperature sensors as well as pressure, accelerometer and tilt sensors. The data processing is detailed in Foltz et al. (2020).
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 15 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 54
    Publication Date: 2024-03-28
    Description: SADCP data were acquired on 33 of the research cruises On FS Meteor, FS Maria S. Merian and FS Sonne II two Teledyne RDI Ocean Surveyor systems with 38 and 75 kHz transmission frequency were used, while on NO l'Atalante a single 75 kHz system was used. All data was processed with a software package developed at GEOMAR following the GO-SHIP standards (Firing and Hummon, 2010). The data was subsequently averaged over one minute intervals, converted to a NetCDF based format and published. For a small number of cruises, the signal strength information of the SADCP data has also been used to estimate the backscatter in the ocean. These data sets were processed following Mullinson (2017) and published separately from the regular SADCP data (see also Table C7).
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 39 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 55
    Publication Date: 2024-03-28
    Description: CTDO measurements were acquired on the major research cruises performed as part of the SFB 754 or other projects . Seabird 911plus systems equipped with dual temperature-conductivity-oxygen sensors were employed. All systems had a 24-bottle water sampling rosette with 10 l Niskin bottles. On some cruises only 22 bottles were mounted to accommodate a lowered Acoustic Doppler Current Profiler for deep ocean current observations. Water sampling, processing, and calibration followed GO-SHIP recommendations (Swift, 2010; McTaggart et al., 2010; Uchida et al., 2010) and included the recommended steps Data Conversion, Sensor Time-Alignment, Creation of Bottle Files, Outlier Removal, Pressure Sensor Filtering, Conductivity Cell Thermal Mass Correction, Ship Roll Correction and Deck Offset Correction by Loop Editing, as well as Derivation of Calculated Properties. After these steps, conductivity and oxygen readings were calibrated against values determined with salinometry and Winkler titration , respectively. Finally, the downcast data was averaged over 1 dbar wide intervals. An independent upcast calibration was used to obtain calibrated CTDO values coincident with the discrete water samples.
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 32 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 56
    facet.materialart.
    Unknown
    PANGAEA
    Publication Date: 2024-03-28
    Description: During the second funding phase (2012-2015) a new CTD system became available that could be deployed from a moving 185 ship. First a Teledyne Oceanscience UCTD and later a Teledyne Oceanscience Rapidcast system were acquired and deployed successfully on several cruises (see Table C8). They allowed for the sampling of water masses at high horizontal resolution (ranging from less than 1 km for the Rapidcast system to 10 km for deep UCTD casts) with good accuracy of the pressure, temperature, and conductivity sensors. Processing of the data involved mostly the fall-rate dependent correction of the thermal lag of the conductivity sensor and followed the approach described by Ullman and David (2014). Subsequently 190 the corrected data was calibrated against the calibrated coincident Thermosalinograph and the calibrated nearby CTD data. The typical accuracies of the final pressure, temperature, and salinity data are 1 dbar, 0.01 °C, and 0.01 g/kg, respectively.
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 9 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 57
    Publication Date: 2024-03-28
    Description: For 32 SFB 754 cruises near surface temperatures and salinities were collected using the ships' thermosalinograph systems. The four ships on which the major cruises were conducted were equipped with different systems with either one or two 195 thermosalinographs in parallel or in alternating operating mode (see Table C9). All TSG data were cross-calibrated against the calibrated CTD data at the depth of the seawater intake for the TSG systems.
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 33 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 58
    Publication Date: 2024-03-28
    Description: The SFB 754 also made a contribution to the global ARGO float program. In 2009, 2911, and 2014 several floats equipped with additional Aanderaa oxygen sensors were deployed off Peru to study the effects of mesoscale eddies on the flow field 200 and the water masses (see Table C10; Czeschel et al., 2018). A number of floats was deployed in the tropical Atlantic to accompany a tracer release experiment (see section 4.2.3). Additionally several of the cruises were used to deploy regular ARGO floats on behalf of the German Hydrographic Office.
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 4 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 59
    facet.materialart.
    Unknown
    PANGAEA
    Publication Date: 2024-03-28
    Description: lmost all long-term moored observations of the SFB 754 were conducted in the tropical Atlantic between the equator and 18° N, except for one mooring that was deployed in the tropical South Pacific (see Table C4). Moorings were typically equipped with instruments recording pressure, temperature, conductivity, dissolved oxygen and current velocity. The moorings at 17.6° N, 24.2° W which have been deployed in the same location for several periods were additionally equipped with biogeochemical sensors recording variables such as partial pressure of CO2 (pCO2), fluorescence, and particle fluxes. Instruments with pressure, temperature, conductivity and oxygen sensors were calibrated in situ immediately prior to and after a mooring deployment period by attaching them to the CTD frame during CTDO casts. Correction terms were then developed from the difference between the sensor readings and the calibrated CTDO data during several minute long calibration stops. These correction terms were then applied to the full deployment periods. This ensured best data quality with recognition of potential sensor drifts and also allowed for the estimation of calibration and measurement errors (Hahn et al. 2014, Bittig et al. 2018, Berx et al. 2019). Moored Acoustic Doppler Current Profiler bin depths were corrected using the sound speed at instrument depth following the approach by Shcherbina et al. (2005). Velocities were not corrected, but respective measurement errors were assumed as described in Hahn et al. (2014). For all instruments within a mooring that did not record pressure, full deployment pressure time series were estimated by linearly interpolating between the instruments having a pressure sensor.
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 47 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 60
    Publication Date: 2024-03-28
    Description: Nutrient, transient tracer and N2O water column measurements
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 46 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 61
    Publication Date: 2024-03-28
    Description: Continuous measurements of the climate-relevant trace gases carbon dioxide (CO2), nitrous oxide (N2O), and carbon monoxide (CO) in the surface ocean and overlying atmosphere were conducted during 9 SFB 754 cruises (see Table C14) spanning the North, South and equatorial Atlantic, as well as the South and equatorial Pacific. To this end, laser spectroscopy-based gas analyzers coupled to air-water equilibration chambers were used. For details of the analytical systems the reader is referred to the descriptions provided by Arévalo-Martínez et al. (2013) and Arévalo-Martínez et al. (2019). All trace gas measurements were quality-controlled to achieve the international standards for marine CO2 (Bender et al., 2002), N2O (Bange et al., 2019), and atmospheric CO (Zellweger et al., 2019; to date there is no accepted standard for seawater measurements). The final quality-controlled data is available through the Surface Ocean CO2 Atlas (SOCAT, https://www.socat.info/) and the Marine CH4-N2O database (MEMENTO, https://memento.geomar.de/) as well as on Pangaea
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 10 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 62
    Publication Date: 2024-03-28
    Description: Particulate organic matter (POM) distribution in the water column as on several cruises determined after filtration onto pre-combusted, acid-washed GF/F filters (Franz et al., 2012a). Particulate organic phosphorus (POP) collected on GF/F filters was determined colorimetrically. Samples for phytoplankton pigment concentrations were collected by filtration of seawater from the CTD/rosette through GF/F filters, and stored at -80°C immediately after filtration. Transparent exopolymer particles (TEP) and Coomassie stainable particles were filtered under low pressure (〈 150 mbar) onto 25 mm Nuclepore membrane filters (0.4 μm pore size, Whatman Ltd.) and stained with Alcian Blue and Coomassie Brilliant Blue, respectively. Export flux of was characterized using surface-tethered sediment traps (Engel et al., 2017), with Particle Interceptor-Traps (PIT) following Knauer et al. (1979).
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 10 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 63
    Publication Date: 2024-03-28
    Description: Dissolved Organic Matter, Cell Abundance and Extracellular Enzyme Rates and Bacterial Production from several cruises and experiments from 2008-2018
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 9 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 64
    Publication Date: 2024-03-28
    Description: Dinitrogen (N2) and carbon (C) fixation rates were measured on 9 cruises (see Table C17) using shipboard incubation experiments, complemented with nutrient and oxygen manipulations. During cruises M77/3, M77/4 and M80/2, N2 fixation was measured using the bubble addition method following Montoya et al (1996). During M80/2 a novel method based on 360 15N2 gas pre-dissolution, which was developed by Mohr et al. (2010), was tested in parallel to the classic method. An underestimation of N2 fixation rates by the classic method has been observed (Großkopf et al., 2012) and therefore the novel 'pre-dissolution method' was applied during the following cruises (M83/1, M90, M91, M93, M97, M104, M107). Single cell N2 fixation rates to differentiate the contribution of different clades of N2 fixers were measured using a NanoSIMS (Martinez-Perez et al., 2016).
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 10 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 65
    Publication Date: 2024-03-28
    Description: Potential rates for microaerobic respiration and aerobic organic matter degradation as a source of ammonia (NH4+) in the Peruvian OMZ was assessed using an 18O2 labelling approach suitable for microaerobic respiration (Holtappels et al., 2014). Further, the effects of O2 depletion associated with marine snow particles on microbial respiration was explored by combining 18O2 labelling experiments with in-situ particle size analysis and modelling of aggregate-size dependent respiration (Kalvelage et al., 2015). Anammox, denitrification, and nitrification, as well as N2O production rates were measured on several cruises (Kalvelage et al., 2011; Löscher et al., 2012; Callbeck et al., 2017; Bourbonnais et al., 2017; Frey et al., 2020) using isotope fractionation studies, 15N tracer additions, and inhibitor studies.
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 10 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 66
    Publication Date: 2024-03-28
    Description: A Hydrobios Multinet Midi with an aperture of 0.25 m2 and 5 nets (mesh size 200 μm) was deployed for vertically stratified hauls on several cruises, mostly in paired day-night hauls to quantify diel vertical migration. Standard depths used for these deployments were 1000-600-300-200-100-0 m. On M93, a Multinet Maxi (9 nets, 333 μm mesh) was used instead. Samples were fixated in 4% formaldehyde in seawater solution, scanned at GEOMAR or at OSCM, and analyzed using automated imaging software (Gorsky et al., 2010) allowing taxonomical classification as well as the estimation of taxon-specific biomass (Lehette and Hernandez-Leon, 2006) and metabolic rates.
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 2 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 67
    Publication Date: 2024-03-28
    Description: To expand the ecological knowledge on fragile organisms (such as giant rhizaria, medusae, ctenophores, and siphonophores) in situ imaging techniques were employed in addition to net sampling. An Underwater Vision Profiler 5 (UVP5; Picheral et al., 2010) was routinely mounted on the CTD/rosette during most SFB 754 cruises since 2012. During the cruises in 2012 and 2013 a UVP5 was used that was kindly provided by the Laboratoire d'Océangraphie de Villefranche-sur-Mer. The instrument consists of one down facing HD camera in a steel pressure case and two red LED lights which illuminate a 0.88 to 0.93 l volume (depending on the actual set-up). During the downcast, the UVP5 takes 3-20 pictures of the illuminated field per second. For each picture, the particles are counted and sized immediately and the data is stored in the instrument for later analysis.
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 10 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 68
    Publication Date: 2024-03-28
    Description: Zooplankton metabolic rates (oxygen respiration and ammonium excretion) at different temperatures, oxygen, and carbon dioxide partial pressures (Kiko et al., 2015; 2016) were measured during three cruises. Zooplankton was collected by different nets and the entire catch immediately transferred to 10 l beakers containing pre-cooled seawater. Diel vertical migrators were sampled at the surface at night. Individuals for respiration rate measurements were isolated immediately and maintained in filtered seawater for 1 to 13 hours at the chosen experimental temperature (13, 18 or 23°C). Only animals appearing unharmed and fit were used for experiments. Water for the respiration and excretion rate trials was UV-treated, filtered over a 0.2 µm sterile filter, and supplemented with antibiotics (25 mg l-1 ampicillin and 25 mg l-1 streptomycin). Subsequently, the water was bubbled with different Gas mixtures (N2, O2, CO2, see Kiko et al., 2016 for details) adjusted to the chosen pO2 and pCO2 levels.
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 7 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 69
    Publication Date: 2024-03-28
    Description: One of the objectives of the SFB 754 was the reconstruction of the factors controlling the intensity and the spatial extent of the OMZ in the Eastern Tropical Pacific, specifically off Peru, since the Last Glacial Maximum (21000 years ago). For the purpose of these paleoceanographic studies, long gravity cores were recovered during four scientific expeditions (M77/1, M77/2, M92, and M135; see Figure 4). During the cruises M77/1 and M77/2 in 2008, 51 sediment cores were retrieved below and in the centre of the OMZ, from ~17° S to the equator (Pfannkuche et al., 2011; see Figure 4). Most of the records collected in the core of the OMZ (i.e. ~200 to ~500 m depth), from ~8 to 15° S, show sedimentary discontinuities during the Holocene (last 11700 years), which preclude high resolution paleoceanographic reconstructions in this area (Erdem et al., 2016; Salvatteci et al., 2014, 2016). Based on the information collected during M77/1 and M77/2 and also on the scientific literature, cruise M135 aimed specifically at finding the most complete Holocene sequence in the Eastern Tropical South Pacific. For this purpose, a detailed paleoceanographic survey took place at ~17° S, an area that is less affected by processes that can produce sediment discontinuities. Six sediment cores were retrieved, two of which contained the most complete sediment sequences for the last 10 000 years (Salvatteci et al., 2019).
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 58 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 70
    Publication Date: 2024-03-28
    Description: One of the objectives of the SFB 754 was the reconstruction of the factors controlling the intensity and the spatial extent of the OMZ in the Eastern Tropical Pacific, specifically off Peru, since the Last Glacial Maximum (21000 years ago). For the purpose of these paleoceanographic studies, long gravity cores were recovered during four scientific expeditions (M77/1, M77/2, M92, and M135). During the cruises M77/1 and M77/2 in 2008, 51 sediment cores were retrieved below and in the centre of the OMZ, from ~17° S to the equator (Pfannkuche et al., 2011; see Figure 4). Most of the records collected in the core of the OMZ (i.e. ~200 to ~500 m depth), from ~8 to 15° S, show sedimentary discontinuities during the Holocene (last 11700 years), which preclude high resolution paleoceanographic reconstructions in this area (Erdem et al., 2016; Salvatteci et al., 2014, 2016). Based on the information collected during M77/1 and M77/2 and also on the scientific literature, cruise M135 aimed specifically at finding the most complete Holocene sequence in the Eastern Tropical South Pacific. For this purpose, a detailed paleoceanographic survey took place at ~17° S, an area that is less affected by processes that can produce sediment discontinuities.
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; Cruise/expedition; Date/Time of event; ELEVATION; Event label; GC; GC1; GC10; GC11; GC12; GC13; GC14; GC15; GC16; GC17; GC18; GC19; GC2; GC20; GC21; GC22; GC23; GC3; GC-3; GC4; GC5; GC6; GC7; GC8; GC-8; GC9; Gear; Gravity corer; Latitude of event; Longitude of event; M135; M135_219-3; M135_249-3; M135_249-4; M135_250-3; M135_252-3; M135_254-3; M77/1; M77/1_413; M77/1_414; M77/1_415; M77/1_416; M77/1_417; M77/1_418; M77/1_422; M77/1_493; M77/1_494; M77/1_495; M77/1_496; M77/1_497; M77/1_502; M77/1_503; M77/1_504; M77/1_505; M77/1_506; M77/1_507; M77/1_508; M77/1_509; M77/1_510; M77/1_511; M77/1_512; M77/2; M77/2_002-6; M77/2_003-2; M77/2_005-1; M77/2_005-3; M77/2_022-1; M77/2_024-5; M77/2_026-1; M77/2_028-3; M77/2_029-1; M77/2_029-3; M77/2_045-4; M77/2_047-2; M77/2_050-4; M77/2_052-2; M77/2_053-2; M77/2_054-1; M77/2_056-3; M77/2_056-5; M77/2_059-1; M77/2_060-3; M77/2_062-1; M77/2_064-3; M77/2_065-1; M77/2_067-4; M77/2_069-1; M77/2_072-3; M77/2_075-1; M77/2_076-4; M77/2_635-7; M77/2_636-1; M77/2_639-1; M77/2_647-1; M77/2_668; M77/2_677; M77/2_679; M77/2_686; M77/2_688; M77/2_690; M77/2_718; M77/2_722; M77/2_730; M77/2_733; M77/2_737; M77/2_739; M77/2_746; M77/2_748; M77/2_752; M77/2_758; M77/2_761; M77/2_768; M77/2_770; M77/2_778; M77/2_780; M77/2_791; M77/2_795; M77/2_802; M92; M92_0254-1; M92_0255-1; M92_0263-1; M92_0265-1; M92_0268-1; Meteor (1986); PC; Piston corer; Recovery; Reference/source; Sample code/label; SFB754; SFB754/POSTRE-II
    Type: Dataset
    Format: text/tab-separated-values, 260 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 71
    Publication Date: 2024-03-28
    Description: In the Peruvian upwelling area, benthic biogeochemical fieldwork focused on the FS Meteor cruises M77/1, M77/2, M92, M136, and M137. Off Mauritania, benthic investigations were mainly conducted on FS Maria S. Merian cruise MSM17/4 and FS Meteor cruise M107 (Sommer et al., 2021; see Table 2 and supplementary Tables S29 to S35). Research questions addressed organic carbon degradation, associated element cycling, and solute fluxes in the benthic boundary layer in response to variable bottom water redox conditions and hydrodynamic forcing (e.g. Bohlen et al., 2011; Dale et al., 2014; Dale et al., 2016; Dale et al., 2019; Dale et al., 2021; Loginova et al., 2020; Lomnitz et al., 2016; Noffke et al., 2012; Plass et al., 2020; Schroller-Lomnitz et al., 2019; Sommer et al., 2016). Effects of variable bottom water conditions on seabed nutrient and trace metal release were studied during in situ and ex situ on-board sediment incubations and the analysis of pore water geochemistry. Further emphasis was placed on resolving the imprint of specific microbial processes and foraminiferal metabolic activity on element turnover and exchange across the sediment water interface (e.g. Glock et al., 2013, 2019, 2020; Gier et al., 2016, 2017; Scholz et al., 2016; 2017). The results were further interpreted using benthic numerical models (e.g. Bohlen et al., 2011; Dale et al., 2014, 2015, 2016, 2017, 2019).
    Keywords: Climate - Biogeochemistry Interactions in the Tropical Ocean; SFB754
    Type: Dataset
    Format: 8 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 72
    Publication Date: 2024-03-28
    Description: Multibeam bathymetry raw data was recorded in the Mediterranean Sea during cruise SO277 (GPF 18-1_089) that took place between 2020-08-14 and 2020-10-03. The data was collected using the ship's own Kongsberg EM 122. Sound velocity profiles (SVP) were applied on the data for calibration. Sound velocity profiles (SVP) were applied on the data for calibration. Please see environmental data (zip file) and the cruise report for details.
    Keywords: Bathymetry; Binary Object; Binary Object (File Size); Binary Object (Media Type); Comment; Data file recording distance; Data file recording duration; DATE/TIME; ELEVATION; EM122; EM122 multibeam echosounder; Event label; Extracted from file; Extracted with MB-System; File content; GPF 19-2-012; Kongsberg datagram raw file name; LATITUDE; LONGITUDE; Multibeam Echosounder; Number of pings; Ship speed; SO277; SO277_0_Underway-3; Sonne_2; Start of data file, depth; Start of data file, heading; Start of data file recording, date/time; Start of data file recording, latitude; Start of data file recording, longitude; Stop of data file, depth; Stop of data file, heading; Stop of data file recording, date/time; Stop of data file recording, latitude; Stop of data file recording, longitude
    Type: Dataset
    Format: text/tab-separated-values, 3854 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 73
    Publication Date: 2024-03-28
    Description: Multibeam bathymetry raw data were recorded in the Mediterranean Sea during cruise SO277 (GPF 19-2_012) that took place between 2020-08-14 and 2020-10-03 (Emden-Emden). The data were collected using a vessel-mounted Kongsberg EM710. Sound velocity profiles (SVP) were applied on the data for calibration. Please see environmental data (zip file) and the cruise report for details. SO277 served two scientific projects. The objectives of the first project, SMART, were to develop multi-disciplinary methodologies to detect, quantify, and model offshore groundwater reservoirs in regions dominated by carbonate geology such as the Mediterranean Sea.
    Keywords: Bathymetry; Binary Object; Binary Object (File Size); Binary Object (Media Type); Comment; Data file recording distance; Data file recording duration; DATE/TIME; ELEVATION; EM710; EM710 multibeam echosounder; Event label; Extracted from file; Extracted with MB-System; File content; GPF 19-2-012; Kongsberg datagram raw file name; LATITUDE; LONGITUDE; Multibeam Echosounder; Number of pings; Ship speed; SO277; SO277_0_Underway-2; Sonne_2; Start of data file, depth; Start of data file, heading; Start of data file recording, date/time; Start of data file recording, latitude; Start of data file recording, longitude; Stop of data file, depth; Stop of data file, heading; Stop of data file recording, date/time; Stop of data file recording, latitude; Stop of data file recording, longitude
    Type: Dataset
    Format: text/tab-separated-values, 13030 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 74
    Publication Date: 2024-03-28
    Description: Abyssal holothurians were collected during SO242-2 in the Peru Basin in 2015 with ROV Kiel 6000 (Geomar, Germany). Aboard the vessel, holothurians were measured (length, width, height), dissected and stored frozen (-20°C). Feces and gut content of individual holothurian specimens were also kept frozen. At the shore-based laboratory of NIOZ-Yerseke, samples were weight before and after freeze-drying and organic (org.) C/ δ13C and N/ δ15N content of freeze-dried, finely-ground holothurian gut content and feces were measured with an elemental analyzer coupled with an isotope ratio mass spectrometer. Sediment grain size of holothurian gut content was determined by laser diffraction on freeze-dried and sieved (〈1 mm) sediment samples in a Malvern Mastersizer 2000.
    Keywords: Carbon, organic; COLBOX; Collector Box; Date/Time of event; Depth, bathymetric; Dry mass; Event label; feces; Feces, dry, total; gut content; Gut content, dry mass; Holothuroidea; In situ incubation chamber; ISCHAM; JPI-OCEANS; JPI Oceans - Ecological Aspects of Deep-Sea Mining; JPIO-MiningImpact; LATITUDE; LONGITUDE; Managing Impacts of Deep-seA reSource exploitation; Median, grain size; MIDAS; Moisture; Nitrogen, total; nitrogen content; organic carbon content; Sample ID; SG; Size fraction 〈 0.00063 mm; Size fraction 0.125-0.063 mm, 3.0-4.0 phi, very fine sand; Size fraction 0.250-0.125 mm, 2.0-3.0 phi, fine sand; Size fraction 0.500-0.250 mm, 1.0-2.0 phi, medium sand; Size fraction 1.000-0.500 mm, 0.0-1.0 phi, coarse sand; Slurp Gun; SO242/2; SO242/2_163_ISCHAM-BICS-1-holothurian-2; SO242/2_163_ISCHAM-BICS-2-holothurian-1; SO242/2_163_ISCHAM-BICS-3-holothurian-3; SO242/2_163_SLURP-1-holothurian-1; SO242/2_163_SLURP-7-holothurian-7; SO242/2_163_SLURP-9-holothurian-9; SO242/2_188_ISCHAM-BICS-1-holothurian-2; SO242/2_188_ISCHAM-BICS-2-holothurian-1; SO242/2_188_ISCHAM-BICS-3-holothurian-3; SO242/2_202_ISCHAM-BICS-1-holothurian-1; SO242/2_202_ISCHAM-BICS-2-holothurian-2; SO242/2_202_ISCHAM-BICS-3-holothurian-3; SO242/2_202_SLURP-1-holothurian; SO242/2_205_COLBOX-2-holothurian-4; SO242/2_205_COLBOX-3-holothurian-5; SO242/2_205_COLBOX-4-holothurian-6; SO242/2_205_SLURP-1-holothurian-2; SO242/2_216_SLURP-4-holothurian; SO242/2_219_COLBOX-1-holothurian-1; SO242/2_219_ISCHAM-BICS-1-benthodytes-1; SO242/2_219_ISCHAM-BICS-2-peniagone-1; SO242/2_219_ISCHAM-BICS-3-palaeopatides-2; SO242/2_219_ISCHAM-BICS-4-palaeopatides-1; SO242/2_219_SLURP-3-benthodytes-1; Sonne_2; South Pacific Ocean, Peru Basin; Species; stable isotope analysis; Station label; Wet mass
    Type: Dataset
    Format: text/tab-separated-values, 231 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 75
    Publication Date: 2024-03-28
    Description: This dataset includes total organic carbon (TOC), stable carbon isotope (δ13C), and radiocarbon activity (expressed as Fm) of TOC, as well as mineral surface area (SA), mean grain size, and calcium carbonate (CaCO3) of 89 surface sediment samples from the northern South China Sea. The samples were collected through the German R/V SONNE cruises SO50, SO72A, SO95, and SO132 during July–September 1987, October–November 1990, April–June 1994, and June–July 1998, respectively. TOC and stable carbon isotope (δ13C) of the decarbonated samples were measured by an elemental analyzer interfaced with an isotope ratio mass spectrometer (EA-IRMS; Flash EA 1112 HT-Delta V Advantage). The standard deviations of TOC content and δ13C were 0.03% and 0.08‰, respectively, by replicate measurements of the same acetanilide standard samples. Radiocarbon activity of carbonate free sediment were measured using a Mini Carbon Dating System (MICADAS) accelerated mass spectrometry at the Laboratory of Ion Beam Physics, ETH Zürich. Radiocarbon data are reported as "fraction modern" (Fm), representing the deviations of the 14C/12C ratio from 95% modern oxalic acid standard. The absolute error of Fm is better than ±0.01. The conventional radiocarbon ages are calculated based on the equation of t = –8033 ln (Fm), in years Before Present (yr BP, where present is 1950 AD). Organic-free mineral surface area (SA) was measured using a 5-point Brunauer-Emmett-Teller (BET) nitrogen adsorption method on NOVA 4000 SA analyzer (Quantachrome Instrument). The standard deviations of two reference minerals are 0.03 and 0.14 m2 g–1, respectively. The sample was then performed for mean grain size analysis using a laser Particle Size Analyzer (Malvern Mastersizer 2000). The calcium carbonate content of the samples was determined by a vacuum-gasometric system with a relative accuracy of ±0.7%.
    Keywords: Activity of radiocarbon in percent of modern carbon; BC; Box corer; Calcium carbonate; Calcium Carbonate; Carbon, organic, total; DEPTH, sediment/rock; Depth, sediment/rock, bottom/maximum; Depth, sediment/rock, top/minimum; Element analyser isotope ratio mass spectrometer (EA-IRMS); Event label; Giant box corer; GIK17920-1; GIK17921-1; GIK17922-1; GIK17924-1; GIK17925-2; GIK17926-2; GIK17927-1; GIK17929-1; GIK17930-1; GIK17931-1; GIK17932-1; GIK17933-2; GIK17934-1; GIK17935-2; GIK17936-1; GIK17937-1; GIK17938-1; GIK17940-1; GIK17941-1; GIK17942-1; GIK17943-1; GIK17944-1; GIK17945-1; GIK17946-1; GIK17947-2; GIK17948-1; GIK17949-1; GIK17952-1; GKG; Grain Size; Grain size, mean; Laser diffraction particle size analyser (Malvern Mastersizer 2000); MICADAS Accelerator Mass Spectrometer; Minerals, surface area; mineral surface area (SA); MONITOR MONSUN; MSN; MUC; MultiCorer; Multiple opening/closing net; Number; radiocarbon isotope (Fm); Sample code/label; SO132; SO132_11-2; SO132_15-2; SO132_16-2; SO132_27-1; SO132_29-1; SO132_30-1; SO132_31-1; SO132_32-1; SO132_33-1; SO132_34-1; SO132_35-1; SO132_36-1; SO132_37-1; SO132_38-1; SO132_7-2; SO50; SO50_KG-100; SO50_KG-102; SO50_KG-104; SO50_KG-30; SO50_KG-36; SO50_KG-39; SO50_KG-43; SO50_KG-44; SO50_KG-50; SO50_KG-53; SO50_KG-54; SO50_KG-55; SO50_KG-56; SO50_KG-58; SO50_KG-59; SO50_KG-60; SO50_KG-61; SO50_KG-62; SO50_KG-67; SO50_KG-69; SO50_KG-71; SO50_KG-72; SO50_KG-73; SO50_KG-74; SO50_KG-75; SO50_KG-76; SO50_KG-77; SO50_KG-78; SO50_KG-92; SO50_KG-94; SO50_KG-97; SO50_KG-98; SO72; SO72A_KG-10B-1; SO72A_KG-12-1; SO72A_KG-13-1; SO72A_KG-14-1; SO72A_KG-15-1; SO72A_KG-16-1; SO72A_KG-17-1; SO72A_KG-18-1; SO72A_KG-19-1; SO72A_KG-2-1; SO72A_KG-3-1; SO72A_KG-4-1; SO72A_KG-8-1; SO72A_KG-9-1; SO95; Sonne; South China Sea; Stable carbon isotope (δ13C); SÜDMEER II; Surface area analyzer, Quantachrome Instrument, NOVA 4000 SA; total organic carbon (TOC); Vacuum-gasometric; δ13C, total organic carbon
    Type: Dataset
    Format: text/tab-separated-values, 882 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 76
    Publication Date: 2024-03-28
    Description: We present in depth data of the sea urchin population in the Arctic Porsangerfjord. Sea urchins were collected by hand from randomly chosen square meters of two present habitats: a sea urchin barren, characterized by stony ground without major algae growth, and the neighbouring kelp forest with a healthy macroalgae community. Both habitats are located near the shoreline of a bay in the Porsangerfjord, called the Holmfjord, and sampling took place in less than 1 m depth at low tide. Sampling was conducted in two consecutive years, summer 2022 and summer 2023. Data collected from the sea urchins includes the test-diameter, freshmass, species and morphotype.
    Keywords: Abundance; Analytical balance, Sartorius, B110; Arctic Biodiversity & Livelihoods; AWI_INSPIRES; Biomass; Color description; Comment; FACE-IT; Habitat; HAND; Holmfjord_Porsangerfjord_2022; Holmfjord_Porsangerfjord_2023; International Science Program for Integrative Research in Earth Systems; Norway; Porsangerfjord; Quadrat number; Ruler tape; Sampling by hand; sea urchin; Sea urchin, biomass, wet mass; Sea urchin, diameter; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Stronglyocentrotus pallidus; Strongylocentrotus droebachiensis; Year of sampling
    Type: Dataset
    Format: text/tab-separated-values, 16054 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 77
    Publication Date: 2024-03-28
    Description: The site scale observations of the Indian crops are very rarely available for public access. Students at all agricultural institutes across India carry out experiments on Indian crops as part of their curriculum and report the results in a thesis. The thesis from such institutes is uploaded to the Krishikosh repository (https://krishikosh.egranth.ac.in). To fill the gap of absence of crop data on Indian crops, we started to look at this repository and collect data. We have collected and harmonized crop phenology and agricultural management data of major Indian crops such as spring wheat and rice from these theses. This dataset is the first of its kind, providing and combining weather data from several crop-growing regions. We are combining data from 83 theses related to rice and data from 64 theses related to spring wheat. These data are from 48 individual sites, a few of which have multiple growing seasons.
    Keywords: Agriculture; Akola; Anand; Author(s); Bapatla; Bengaluru; Bhubaneswar; Binary Object; Brahmavara; Chatha; Coimbatore; Compilation; Cooch Behar; Country; crop yield; Dhadesugur; Dharwad; Event label; Faizabad; Field measurement; Gwalior; Identification; IND_RI_AKO_1977; IND_RI_AKO_1978; IND_RI_AKO_1979; IND_RI_BAP_2002; IND_RI_BEN_2016; IND_RI_BHU_2014; IND_RI_BRA_2017; IND_RI_COM_1985; IND_RI_COM_1986; IND_RI_DEL_1966; IND_RI_DEL_1967; IND_RI_DHA_2017; IND_RI_FAZ_2000; IND_RI_FAZ_2001; IND_RI_HYD_2010; IND_RI_JAB_1987; IND_RI_JAB_2009; IND_RI_JAB_2010; IND_RI_JAB_2011; IND_RI_JAB_2019; IND_RI_JOR_1997; IND_RI_JOR_1998; IND_RI_JOR_1999; IND_RI_KAS_2002; IND_RI_KAU_2008; IND_RI_KAU_2015; IND_RI_KUT_2013; IND_RI_KUT_2015; IND_RI_KUT_2016; IND_RI_KUT_2018; IND_RI_KUT_2019; IND_RI_MAD_1984; IND_RI_MAD_1985; IND_RI_MAN_2010; IND_RI_MEE_2019; IND_RI_PAL_1989; IND_RI_PAL_1990; IND_RI_PAL_1991; IND_RI_PAL_1992; IND_RI_PAL_1993; IND_RI_PAL_1997; IND_RI_PAL_1998; IND_RI_PAL_1999; IND_RI_PAL_2000; IND_RI_PAL_2001; IND_RI_PAL_2020; IND_RI_PAN_2005; IND_RI_PAN_2006; IND_RI_PAN_2010; IND_RI_PAN_2011; IND_RI_PAN_2012; IND_RI_PAN_2016; IND_RI_PAN_2017; IND_RI_PAN_2019; IND_RI_PON_2021; IND_RI_RAI_1973; IND_RI_RAI_1977; IND_RI_RAI_1984; IND_RI_RAI_1985; IND_RI_RAI_2009; IND_RI_RAI_2012; IND_RI_RAI_2015; IND_RI_RAI_2016; IND_RI_RAI_2018; IND_RI_RAI_2019; IND_RI_RAJ_2001; IND_RI_RAJ_2002; IND_RI_RAN_2015; IND_RI_RAN_2019; IND_RI_RED_2000; IND_RI_RED_2001; IND_RI_REW_2007; IND_RI_REW_2009; IND_RI_SRI_2012; IND_RI_TIR_1989; IND_RI_TIR_1994; IND_RI_TIR_1995; IND_RI_TIR_1996; IND_RI_VAD_2016; IND_RI_VAD_2017; IND_RI_VAD_2018; IND_RI_VAR_2016; IND_RI_VEL_1985; IND_SW_ANA_1964; IND_SW_ANA_1965; IND_SW_ANA_1968; IND_SW_ANA_1969; IND_SW_CHA_1997; IND_SW_CHA_1998; IND_SW_COB_1997; IND_SW_COB_1998; IND_SW_COB_2000; IND_SW_COB_2001; IND_SW_DHA_1998; IND_SW_DHA_1999; IND_SW_DHA_2000; IND_SW_DHA_2002; IND_SW_DHA_2016; IND_SW_FAZ_2003; IND_SW_FAZ_2004; IND_SW_FAZ_2020; IND_SW_GWA_2011; IND_SW_INR_1986; IND_SW_JAB_2013; IND_SW_JAB_2014; IND_SW_JAI_2013; IND_SW_JAI_2014; IND_SW_JOB_1970; IND_SW_JOB_1977; IND_SW_JOB_1983; IND_SW_JOB_1984; IND_SW_JOB_1998; IND_SW_JOB_1999; IND_SW_JOB_2000; IND_SW_JOB_2002; IND_SW_JOB_2015; IND_SW_JOB_2016; IND_SW_LUD_2011; IND_SW_LUD_2012; IND_SW_MEE_2011; IND_SW_MEE_2012; IND_SW_MEE_2013; IND_SW_NAD_1972; IND_SW_NAD_1973; IND_SW_NAD_1990; IND_SW_NAD_1991; IND_SW_NAD_1999; IND_SW_NAD_2000; IND_SW_NAD_2001; IND_SW_NAD_2002; IND_SW_NAD_2005; IND_SW_NAD_2006; IND_SW_NAD_2007; IND_SW_NAD_2013; IND_SW_NAD_2014; IND_SW_PAN_2007; IND_SW_PAN_2008; IND_SW_PAR_2001; IND_SW_PAR_2005; IND_SW_PAR_2009; IND_SW_PAR_2019; IND_SW_RAN_1995; IND_SW_RAN_1996; IND_SW_RAN_1997; IND_SW_RAN_2013; IND_SW_RAN_2014; IND_SW_RAN_2017; Indore; Jabalpur; Jaipur; Jobner; Jorhat; Journal/report publisher; Journal/report title; Kanke, Ranchi; Kaul; Kuthulia; Literature survey; Ludhiana; Madurai; Mandya; Meerut; Nadia; New delhi; Palampur; Pantnagar; Parbhani; phenology; Poonch; Publication type; Raipur; Rajavanthi; Rajendranagar; Ranchi; Reddipalli; Rewa; rice; Spring wheat; Srikakulam; Srinagar; Tirupati; Uniform resource locator/link to source data file; Vadgaon Maval; Varanasi; Vellayani; Year of publication
    Type: Dataset
    Format: text/tab-separated-values, 1470 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 78
    Publication Date: 2024-03-28
    Description: The weather has a significant impact on crop growth. In the Indian agroecosystem information on the weather during a crop's growing season measured at the experimental site is scarce. We have compiled and harmonized meteorological data measured at the experimental sites for rice and spring wheat crop from various Indian agricultural institutes. These theses are available as pdf at the Krishikosh repository (https://krishikosh.egranth.ac.in). This dataset is the first of its kind, providing and combining weather data from several crop-growing regions. We are combining data from 83 theses related to rice and data from 64 theses related to spring wheat. These data are from 48 individual sites, a few of which have multiple growing seasons.
    Keywords: Agriculture; Akola; Anand; Author(s); Bapatla; Bengaluru; Bhubaneswar; Brahmavara; Chatha; Coimbatore; Compilation; Cooch Behar; Country; crop yield; DATE/TIME; Date/time end; Dhadesugur; Dharwad; ELEVATION; Evaporation, daily mean; Evaporation, daily total; Event label; Faizabad; Field measurement; Gwalior; Humidity, relative; Humidity, relative, daily mean; Humidity, relative, maximum; Humidity, relative, minimum; Humidity, relative, monthly mean; Identification; IND_RI_AKO_1977; IND_RI_AKO_1978; IND_RI_AKO_1979; IND_RI_BAP_2002; IND_RI_BEN_2016; IND_RI_BHU_2014; IND_RI_BRA_2017; IND_RI_COM_1985; IND_RI_COM_1986; IND_RI_DEL_1966; IND_RI_DEL_1967; IND_RI_DHA_2017; IND_RI_FAZ_2000; IND_RI_FAZ_2001; IND_RI_HYD_2010; IND_RI_JAB_1987; IND_RI_JAB_2009; IND_RI_JAB_2010; IND_RI_JAB_2011; IND_RI_JAB_2019; IND_RI_JOR_1997; IND_RI_JOR_1998; IND_RI_JOR_1999; IND_RI_KAS_2002; IND_RI_KAU_2008; IND_RI_KAU_2015; IND_RI_KUT_2013; IND_RI_KUT_2015; IND_RI_KUT_2016; IND_RI_KUT_2018; IND_RI_KUT_2019; IND_RI_MAD_1984; IND_RI_MAD_1985; IND_RI_MAN_2010; IND_RI_MEE_2019; IND_RI_PAL_1989; IND_RI_PAL_1990; IND_RI_PAL_1991; IND_RI_PAL_1992; IND_RI_PAL_1993; IND_RI_PAL_1997; IND_RI_PAL_1998; IND_RI_PAL_1999; IND_RI_PAL_2000; IND_RI_PAL_2001; IND_RI_PAL_2020; IND_RI_PAN_2005; IND_RI_PAN_2006; IND_RI_PAN_2010; IND_RI_PAN_2011; IND_RI_PAN_2012; IND_RI_PAN_2016; IND_RI_PAN_2017; IND_RI_PAN_2019; IND_RI_PON_2021; IND_RI_RAI_1973; IND_RI_RAI_1977; IND_RI_RAI_1984; IND_RI_RAI_1985; IND_RI_RAI_2009; IND_RI_RAI_2012; IND_RI_RAI_2015; IND_RI_RAI_2016; IND_RI_RAI_2018; IND_RI_RAI_2019; IND_RI_RAJ_2001; IND_RI_RAJ_2002; IND_RI_RAN_2015; IND_RI_RAN_2019; IND_RI_RED_2000; IND_RI_RED_2001; IND_RI_REW_2007; IND_RI_REW_2009; IND_RI_SRI_2012; IND_RI_TIR_1989; IND_RI_TIR_1994; IND_RI_TIR_1995; IND_RI_TIR_1996; IND_RI_VAD_2016; IND_RI_VAD_2017; IND_RI_VAD_2018; IND_RI_VAR_2016; IND_RI_VEL_1985; IND_SW_ANA_1964; IND_SW_ANA_1965; IND_SW_ANA_1968; IND_SW_ANA_1969; IND_SW_CHA_1997; IND_SW_CHA_1998; IND_SW_COB_1997; IND_SW_COB_1998; IND_SW_COB_2000; IND_SW_COB_2001; IND_SW_DHA_1998; IND_SW_DHA_1999; IND_SW_DHA_2000; IND_SW_DHA_2002; IND_SW_DHA_2016; IND_SW_FAZ_2003; IND_SW_FAZ_2004; IND_SW_FAZ_2020; IND_SW_GWA_2011; IND_SW_INR_1986; IND_SW_JAB_2013; IND_SW_JAB_2014; IND_SW_JAI_2013; IND_SW_JAI_2014; IND_SW_JOB_1970; IND_SW_JOB_1977; IND_SW_JOB_1983; IND_SW_JOB_1984; IND_SW_JOB_1998; IND_SW_JOB_1999; IND_SW_JOB_2000; IND_SW_JOB_2002; IND_SW_JOB_2015; IND_SW_JOB_2016; IND_SW_LUD_2011; IND_SW_LUD_2012; IND_SW_MEE_2011; IND_SW_MEE_2012; IND_SW_MEE_2013; IND_SW_NAD_1972; IND_SW_NAD_1973; IND_SW_NAD_1990; IND_SW_NAD_1991; IND_SW_NAD_1999; IND_SW_NAD_2000; IND_SW_NAD_2001; IND_SW_NAD_2013; IND_SW_NAD_2014; IND_SW_PAN_2007; IND_SW_PAN_2008; IND_SW_PAR_2001; IND_SW_PAR_2005; IND_SW_PAR_2009; IND_SW_PAR_2019; IND_SW_RAN_1995; IND_SW_RAN_1996; IND_SW_RAN_1997; IND_SW_RAN_2013; IND_SW_RAN_2014; IND_SW_RAN_2017; Indore; Jabalpur; Jaipur; Jobner; Jorhat; Journal/report publisher; Journal/report title; Kanke, Ranchi; Kaul; Kuthulia; LATITUDE; Literature survey; Location; LONGITUDE; Ludhiana; Madurai; Mandya; Meerut; Nadia; New delhi; Number of wet days; Palampur; Pantnagar; Parbhani; Period; Poonch; Precipitation; Precipitation, monthly mean; Precipitation, monthly total; Publication type; Raipur; Rajavanthi; Rajendranagar; Ranchi; Reddipalli; Rewa; rice; Solar radiation; Spring wheat; Srikakulam; Srinagar; Standard meteorological week; Sunshine duration, daily; Temperature, air, daily mean; Temperature, air, maximum; Temperature, air, minimum; Temperature, air, monthly mean; Tirupati; Uniform resource locator/link to source data file; Vadgaon Maval; Varanasi; Vellayani; Water vapour pressure; Water vapour pressure, maximum; Water vapour pressure, minimum; Wind speed; Year of publication
    Type: Dataset
    Format: text/tab-separated-values, 80931 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 79
    Publication Date: 2024-03-28
    Keywords: BIOACID; Biological Impacts of Ocean Acidification; Clupea harengus, dry mass; Clupea harengus, total length; DATE/TIME; Growth, relative; Number; RNA/DNA ratio; Stage; Time in days; Treatment: partial pressure of carbon dioxide; Treatment: temperature
    Type: Dataset
    Format: text/tab-separated-values, 7525 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 80
    Publication Date: 2024-03-28
    Keywords: CARBOCHANGE; CARBOOCEAN; Changes in the carbon uptake and emissions by oceans in a changing climate; Climate - Biogeochemistry Interactions in the Tropical Ocean; CTD/Rosette; CTD-RO; DATE/TIME; Density, sigma, in situ; DEPTH, water; Event label; Fluorescence; ISL_00314_1; ISL_00314_1-1; ISL_00314_1-10; ISL_00314_1-13; ISL_00314_1-17; ISL_00314_1-2; ISL_00314_1-3; ISL_00314_1-4; ISL_00314_1-5; ISL_00314_1-6; ISL_00314_1-9; Islandia; Latitude of event; Longitude of event; Marine carbon sources and sinks assessment; Oxygen; Pressure, water; Radiation, photosynthetically active; Salinity; SFB754; SOPRAN; Sound velocity in water; Surface Ocean Processes in the Anthropocene; Temperature, water; Turbidity (Nephelometric turbidity unit)
    Type: Dataset
    Format: text/tab-separated-values, 35981 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 81
    Publication Date: 2024-03-28
    Description: Pore water nitrate concentrations were measured on board with a SEAL QuAAtro continuous flow auto analyzer. Pore water samples for dissolved element analysis were acidified with HCl to pH 〈 2 after sampling. Depending on the concentration range, pore water K and Fe was measured by inductively coupled plasma optical emission spectrometry (Varian 720 ES) or inductively coupled plasma mass spectrometry (Agilent 7500).
    Keywords: continental shelf; DATE/TIME; DEPTH, sediment/rock; Fe speciation; Iron; LATITUDE; LONGITUDE; M147; M147_41-1; Meteor (1986); MUC; MultiCorer; Nitrate; porewater; Potassium; Sample code/label; Sample elevation; sediment
    Type: Dataset
    Format: text/tab-separated-values, 48 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 82
    Publication Date: 2024-03-28
    Description: Pore water nitrate concentrations were measured on board with a SEAL QuAAtro continuous flow auto analyzer. Pore water samples for dissolved element analysis were acidified with HCl to pH 〈 2 after sampling. Depending on the concentration range, pore water K and Fe was measured by inductively coupled plasma optical emission spectrometry (Varian 720 ES) or inductively coupled plasma mass spectrometry (Agilent 7500).
    Keywords: continental shelf; DATE/TIME; DEPTH, sediment/rock; Fe speciation; Iron; LATITUDE; LONGITUDE; M147; M147_85-1; Meteor (1986); MUC; MultiCorer; Nitrate; porewater; Potassium; Sample code/label; Sample elevation; sediment
    Type: Dataset
    Format: text/tab-separated-values, 65 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 83
    Publication Date: 2024-03-28
    Description: Total element concentrations (Fe, Al, K) of the solid phase were measured after acid digestion (HF, HNO3 and HClO4) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase iron speciation data were measured following single step sodium dithionite extraction (FeD) or sequential Fe extraction (FeAc, FeDith, FeOxal) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase pyrite concentrations (FePy) were calculated stoichiometrically from photometrically measured S2- released via chromium(II) chloride reduction. Total organic carbon (TOC) of the sediment samples was measured in an Elemental Analyzer (Euro EA). Prior to analysis carbon bound to carbonate minerals was removed by leaching the sediment with 0.25 N HCl.
    Keywords: Aluminium; Carbon, organic, total; continental shelf; DATE/TIME; DEPTH, sediment/rock; Fe speciation; Iron; Iron, acid-soluble; Iron, dithionite-citrate-leached; Iron, dithionite extractable; Iron, total; Iron in pyrite; Iron oxalate; LATITUDE; LONGITUDE; M147; M147_24-1; Meteor (1986); MUC; MultiCorer; porewater; Potassium; Sample code/label; Sample elevation; sediment
    Type: Dataset
    Format: text/tab-separated-values, 165 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 84
    Publication Date: 2024-03-28
    Description: Pore water nitrate concentrations were measured on board with a SEAL QuAAtro continuous flow auto analyzer. Pore water samples for dissolved element analysis were acidified with HCl to pH 〈 2 after sampling. Depending on the concentration range, pore water K and Fe was measured by inductively coupled plasma optical emission spectrometry (Varian 720 ES) or inductively coupled plasma mass spectrometry (Agilent 7500).
    Keywords: continental shelf; DATE/TIME; DEPTH, sediment/rock; Fe speciation; Iron; LATITUDE; LONGITUDE; M147; M147_89-1; Meteor (1986); MUC; MultiCorer; Nitrate; porewater; Potassium; Sample code/label; Sample elevation; sediment
    Type: Dataset
    Format: text/tab-separated-values, 65 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 85
    Publication Date: 2024-03-28
    Description: Pore water nitrate concentrations were measured on board with a SEAL QuAAtro continuous flow auto analyzer. Pore water samples for dissolved element analysis were acidified with HCl to pH 〈 2 after sampling. Depending on the concentration range, pore water K and Fe was measured by inductively coupled plasma optical emission spectrometry (Varian 720 ES) or inductively coupled plasma mass spectrometry (Agilent 7500).
    Keywords: continental shelf; DATE/TIME; DEPTH, sediment/rock; Fe speciation; Iron; LATITUDE; LONGITUDE; M147; M147_117-1; Meteor (1986); MUC; MultiCorer; Nitrate; porewater; Potassium; Sample code/label; Sample elevation; sediment
    Type: Dataset
    Format: text/tab-separated-values, 65 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 86
    Publication Date: 2024-03-28
    Description: Total element concentrations (Fe, Al, K) of the solid phase were measured after acid digestion (HF, HNO3 and HClO4) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase iron speciation data were measured following single step sodium dithionite extraction (FeD) or sequential Fe extraction (FeAc, FeDith, FeOxal) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase pyrite concentrations (FePy) were calculated stoichiometrically from photometrically measured S2- released via chromium(II) chloride reduction. Total organic carbon (TOC) of the sediment samples was measured in an Elemental Analyzer (Euro EA). Prior to analysis carbon bound to carbonate minerals was removed by leaching the sediment with 0.25 N HCl.
    Keywords: Aluminium; Amazon Fan; Carbon, organic, total; continental shelf; DATE/TIME; DEPTH, sediment/rock; Fe speciation; GeoB4409-2; Iron; Iron, acid-soluble; Iron, dithionite-citrate-leached; Iron, dithionite extractable; Iron, total; Iron in pyrite; Iron oxalate; LATITUDE; LONGITUDE; M38/2; Meteor (1986); MUC; MultiCorer; porewater; Potassium; Sample code/label; Sample elevation; sediment
    Type: Dataset
    Format: text/tab-separated-values, 98 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 87
    Publication Date: 2024-03-28
    Description: Total element concentrations (Fe, Al, K) of the solid phase were measured after acid digestion (HF, HNO3 and HClO4) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase iron speciation data were measured following single step sodium dithionite extraction (FeD) or sequential Fe extraction (FeAc, FeDith, FeOxal) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase pyrite concentrations (FePy) were calculated stoichiometrically from photometrically measured S2- released via chromium(II) chloride reduction. Total organic carbon (TOC) of the sediment samples was measured in an Elemental Analyzer (Euro EA). Prior to analysis carbon bound to carbonate minerals was removed by leaching the sediment with 0.25 N HCl.
    Keywords: Aluminium; Carbon, organic, total; Ceara Rise; continental shelf; DATE/TIME; DEPTH, sediment/rock; Fe speciation; GeoB4417-5; Iron; Iron, acid-soluble; Iron, dithionite-citrate-leached; Iron, dithionite extractable; Iron, total; Iron in pyrite; Iron oxalate; LATITUDE; LONGITUDE; M38/2; Meteor (1986); MUC; MultiCorer; porewater; Potassium; Sample code/label; Sample elevation; sediment
    Type: Dataset
    Format: text/tab-separated-values, 238 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 88
    Publication Date: 2024-03-28
    Description: Total element concentrations (Fe, Al, K) of the solid phase were measured after acid digestion (HF, HNO3 and HClO4) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase iron speciation data were measured following single step sodium dithionite extraction (FeD) or sequential Fe extraction (FeAc, FeDith, FeOxal) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase pyrite concentrations (FePy) were calculated stoichiometrically from photometrically measured S2- released via chromium(II) chloride reduction. Total organic carbon (TOC) of the sediment samples was measured in an Elemental Analyzer (Euro EA). Prior to analysis carbon bound to carbonate minerals was removed by leaching the sediment with 0.25 N HCl.
    Keywords: Aluminium; Carbon, organic, total; continental shelf; DATE/TIME; DEPTH, sediment/rock; Fe speciation; Iron; Iron, acid-soluble; Iron, dithionite-citrate-leached; Iron, dithionite extractable; Iron, total; Iron in pyrite; Iron oxalate; LATITUDE; LONGITUDE; M147; M147_117-1; Meteor (1986); MUC; MultiCorer; porewater; Potassium; Sample code/label; Sample elevation; sediment
    Type: Dataset
    Format: text/tab-separated-values, 173 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 89
    Publication Date: 2024-03-28
    Description: Pore water nitrate concentrations were measured on board with a SEAL QuAAtro continuous flow auto analyzer. Pore water samples for dissolved element analysis were acidified with HCl to pH 〈 2 after sampling. Depending on the concentration range, pore water K and Fe was measured by inductively coupled plasma optical emission spectrometry (Varian 720 ES) or inductively coupled plasma mass spectrometry (Agilent 7500).
    Keywords: continental shelf; DATE/TIME; DEPTH, sediment/rock; Fe speciation; Iron; LATITUDE; LONGITUDE; M147; M147_93-1; Meteor (1986); MUC; MultiCorer; Nitrate; porewater; Potassium; Sample code/label; Sample elevation; sediment
    Type: Dataset
    Format: text/tab-separated-values, 65 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 90
    Publication Date: 2024-03-28
    Description: Fish debris Nd isotope data and benthic foraminiferal B/Ca ratio and stable isotope data for the MIS M2, MIS 100 and the Last Glacial-Holocene from ODP Site 1267.
    Keywords: 208-1267A; 208-1267B; AGE; AMOC; Atlantic circulation; B/Ca; Calculated; Carbonate ion; Cibicidoides wuellerstorfi, Boron/Calcium ratio; Corrected; Depth, composite; DRILL; Drilling/drill rig; Event label; Foraminifera, benthic δ13C; Foraminifera, benthic δ18O; Joides Resolution; Last Glacial; Leg208; Marine isotope stage; MIS 100; MIS M2; Nd isotopes; Reference/source; Sample code/label; Sample comment; South Atlantic Ocean; ε-Neodymium; ε-Neodymium, error
    Type: Dataset
    Format: text/tab-separated-values, 903 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 91
    Publication Date: 2024-03-28
    Description: Total element concentrations (Fe, Al, K) of the solid phase were measured after acid digestion (HF, HNO3 and HClO4) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase iron speciation data were measured following single step sodium dithionite extraction (FeD) or sequential Fe extraction (FeAc, FeDith, FeOxal) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase pyrite concentrations (FePy) were calculated stoichiometrically from photometrically measured S2- released via chromium(II) chloride reduction. Total organic carbon (TOC) of the sediment samples was measured in an Elemental Analyzer (Euro EA). Prior to analysis carbon bound to carbonate minerals was removed by leaching the sediment with 0.25 N HCl.
    Keywords: Aluminium; Carbon, organic, total; continental shelf; DATE/TIME; DEPTH, sediment/rock; Fe speciation; Iron; Iron, acid-soluble; Iron, dithionite extractable; Iron, total; Iron in pyrite; Iron oxalate; LATITUDE; LONGITUDE; M147; M147_37-1; Meteor (1986); MUC; MultiCorer; porewater; Potassium; Sample code/label; Sample elevation; sediment
    Type: Dataset
    Format: text/tab-separated-values, 133 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 92
    Publication Date: 2024-03-28
    Description: Total element concentrations (Fe, Al, K) of the solid phase were measured after acid digestion (HF, HNO3 and HClO4) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase iron speciation data were measured following single step sodium dithionite extraction (FeD) or sequential Fe extraction (FeAc, FeDith, FeOxal) by inductively coupled plasma optical emission spectrometry (Varian ICP 720-ES). Solid phase pyrite concentrations (FePy) were calculated stoichiometrically from photometrically measured S2- released via chromium(II) chloride reduction. Total organic carbon (TOC) of the sediment samples was measured in an Elemental Analyzer (Euro EA). Prior to analysis carbon bound to carbonate minerals was removed by leaching the sediment with 0.25 N HCl.
    Keywords: Aluminium; Carbon, organic, total; continental shelf; DATE/TIME; DEPTH, sediment/rock; Fe speciation; Iron; Iron, acid-soluble; Iron, dithionite-citrate-leached; Iron, dithionite extractable; Iron, total; Iron in pyrite; Iron oxalate; LATITUDE; LONGITUDE; M147; M147_89-1; Meteor (1986); MUC; MultiCorer; porewater; Potassium; Sample code/label; Sample elevation; sediment
    Type: Dataset
    Format: text/tab-separated-values, 171 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 93
    Publication Date: 2024-03-28
    Description: The MOSES Elbe 2023 experiment aims at following a water mass from the spring of the Elbe River in the Czech Republic, through the freshwater and tidal sections of the river, into the North Sea, where three ships (Mya II, Littorina, and Ludwig Prandtl) were used covering the marine environment in the German Bight (Sternfahrt 10). In order to follow the water mass from the Elbe estuary numerical simulations were performed to determine the likelihood of a variety of starting points for a drifter release experiment. At the first morning of the cruise model forecasts were used to determine the exact locations where drifters were to be released. The drifters were initially released in groups of three drifters and then supplemented at a later point of time. During the following two and a half weeks, the current drifter positions were revisited from the ships involved to take water samples.
    Keywords: 2023_MOSES_Elbe-NorthSea; 2023_MOSES_Elbe-NorthSea_MS_KON1; Changing Earth – Sustaining our Future; DATE/TIME; DEPTH, water; DRIFT; Drifter; Helmholtz_ChangingEarth; HYDREX-Stern10_D-316; Identification; LATITUDE; LONGITUDE; Ludwig Prandtl; Modular Observation Solutions for Earth Systems; MOSES
    Type: Dataset
    Format: text/tab-separated-values, 6228 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 94
    Publication Date: 2024-03-28
    Description: The MOSES Elbe 2023 experiment aims at following a water mass from the spring of the Elbe River in the Czech Republic, through the freshwater and tidal sections of the river, into the North Sea, where three ships (Mya II, Littorina, and Ludwig Prandtl) were used covering the marine environment in the German Bight (Sternfahrt 10). In order to follow the water mass from the Elbe estuary numerical simulations were performed to determine the likelihood of a variety of starting points for a drifter release experiment. At the first morning of the cruise model forecasts were used to determine the exact locations where drifters were to be released. The drifters were initially released in groups of three drifters and then supplemented at a later point of time. During the following two and a half weeks, the current drifter positions were revisited from the ships involved to take water samples.
    Keywords: 2023_MOSES_Elbe-NorthSea; 2023_MOSES_Elbe-NorthSea_MS_KON1; Changing Earth – Sustaining our Future; DATE/TIME; DEPTH, water; DRIFT; Drifter; Helmholtz_ChangingEarth; HYDREX-Stern10_D-323; Identification; LATITUDE; LONGITUDE; Ludwig Prandtl; Modular Observation Solutions for Earth Systems; MOSES
    Type: Dataset
    Format: text/tab-separated-values, 5340 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 95
    Publication Date: 2024-03-28
    Description: The MOSES Elbe 2023 experiment aims at following a water mass from the spring of the Elbe River in the Czech Republic, through the freshwater and tidal sections of the river, into the North Sea, where three ships (Mya II, Littorina, and Ludwig Prandtl) were used covering the marine environment in the German Bight (Sternfahrt 10). In order to follow the water mass from the Elbe estuary numerical simulations were performed to determine the likelihood of a variety of starting points for a drifter release experiment. At the first morning of the cruise model forecasts were used to determine the exact locations where drifters were to be released. The drifters were initially released in groups of three drifters and then supplemented at a later point of time. During the following two and a half weeks, the current drifter positions were revisited from the ships involved to take water samples.
    Keywords: 2023_MOSES_Elbe-NorthSea; 2023_MOSES_Elbe-NorthSea_MS_KON1; Changing Earth – Sustaining our Future; DATE/TIME; DEPTH, water; DRIFT; Drifter; Helmholtz_ChangingEarth; HYDREX-Stern10_D-305; Identification; LATITUDE; LONGITUDE; Ludwig Prandtl; Modular Observation Solutions for Earth Systems; MOSES
    Type: Dataset
    Format: text/tab-separated-values, 6352 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 96
    Publication Date: 2024-03-28
    Description: The MOSES Elbe 2023 experiment aims at following a water mass from the spring of the Elbe River in the Czech Republic, through the freshwater and tidal sections of the river, into the North Sea, where three ships (Mya II, Littorina, and Ludwig Prandtl) were used covering the marine environment in the German Bight (Sternfahrt 10). In order to follow the water mass from the Elbe estuary numerical simulations were performed to determine the likelihood of a variety of starting points for a drifter release experiment. At the first morning of the cruise model forecasts were used to determine the exact locations where drifters were to be released. The drifters were initially released in groups of three drifters and then supplemented at a later point of time. During the following two and a half weeks, the current drifter positions were revisited from the ships involved to take water samples.
    Keywords: 2023_MOSES_Elbe-NorthSea; 2023_MOSES_Elbe-NorthSea_MS_KON1; Changing Earth – Sustaining our Future; DATE/TIME; DEPTH, water; DRIFT; Drifter; Helmholtz_ChangingEarth; HYDREX-Stern10_D-309; Identification; LATITUDE; LONGITUDE; Ludwig Prandtl; Modular Observation Solutions for Earth Systems; MOSES
    Type: Dataset
    Format: text/tab-separated-values, 2408 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 97
    Publication Date: 2024-03-28
    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 ...
  • 98
    Publication Date: 2024-03-28
    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 ...
  • 99
    Publication Date: 2024-03-28
    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 ...
  • 100
    Publication Date: 2024-03-28
    Description: The MOSES Elbe 2023 experiment aims at following a water mass from the spring of the Elbe River in the Czech Republic, through the freshwater and tidal sections of the river, into the North Sea, where three ships (Mya II, Littorina, and Ludwig Prandtl) were used covering the marine environment in the German Bight (Sternfahrt 10). In order to follow the water mass from the Elbe estuary numerical simulations were performed to determine the likelihood of a variety of starting points for a drifter release experiment. At the first morning of the cruise model forecasts were used to determine the exact locations where drifters were to be released. The drifters were initially released in groups of three drifters and then supplemented at a later point of time. During the following two and a half weeks, the current drifter positions were revisited from the ships involved to take water samples.
    Keywords: 2023_MOSES_Elbe-NorthSea; 2023_MOSES_Elbe-NorthSea_MS_KON1; Changing Earth – Sustaining our Future; DATE/TIME; DEPTH, water; DRIFT; Drifter; Helmholtz_ChangingEarth; HYDREX-Stern10_D-312; Identification; LATITUDE; LONGITUDE; Ludwig Prandtl; Modular Observation Solutions for Earth Systems; MOSES
    Type: Dataset
    Format: text/tab-separated-values, 869 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...