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  • Books  (5)
  • Other Sources  (8)
  • Frontiers  (8)
  • Berlin [u.a.] : Springer  (5)
  • 1
    Monograph available for loan
    Monograph available for loan
    Human-centered visualization environments : GI-Dagstuhl Research Seminar, Dagstuhl Castle, Germany, March 5-8, 2006 ; revised lectures (2007)
    Berlin [u.a.] : Springer
    Associated volumes
    Details Availability
    Call number: M 09.0081
    In: Lecture notes in computer science
    Description / Table of Contents: This tutorial book presents an augmented selection of the material presented at the GI-Dagstuhl Research Seminar on Human-Centered Visualization Environments, HCVE 2006, held in Dagstuhl Castle, Germany in March 2006. The 8 tutorial lectures presented are the thoroughly cross-reviewed and revised versions of the summaries and findings, presented and discussed at the seminar. After an introduction to human-centered visualization environments the fundamental principles and methods in that area are shown such as human-centered aspects, interacting with visualizations, visual representations, as well as challenges and unsolved problems. The book is concluded with lectures on domain-specific visualization describing geographic visualization, algorithm animation, and biomedical information visualization.
    Type of Medium: Monograph available for loan
    Pages: XIX, 403 S. , Ill., graph. Darst. , 235 mm x 155 mm
    ISBN: 3540719482 , 978-3-540-71948-9
    Series Statement: Lecture notes in computer science 4417 : Tutorial
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 2
    Monograph available for loan
    Monograph available for loan
    Integraltafeln : Sammlung unbestimmter Integrale elementarer Funktionen (1950)
    Berlin [u.a.] : Springer
    Details Availability
    Call number: O 2263
    Type of Medium: Monograph available for loan
    Pages: VIII, 292 S.
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 3
    Monograph available for loan
    Monograph available for loan
    Leitfaden der Nomographie (1953)
    Berlin [u.a.] : Springer
    Details Availability
    Call number: O 5151
    Type of Medium: Monograph available for loan
    Pages: 178 S. : graph. Darst.
    Location: Upper compact magazine
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  • 4
    Monograph available for loan
    Monograph available for loan
    Scanning probe microscopy : the lab on a tip (2004)
    Berlin [u.a.] : Springer
    Associated volumes
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    Call number: 16/M 03.0477
    In: Advanced texts in physics
    Type of Medium: Monograph available for loan
    Pages: X, 210 S.
    ISBN: 3540431802
    Series Statement: Advanced text in physics
    Classification:
    Physics
    Location: Reading room
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  • 5
    Monograph available for loan
    Monograph available for loan
    Anwendung geophysikalischer Methoden in der Hydrogeologie (1994)
    Berlin [u.a.] : Springer
    Details Availability
    Call number: M 95.0629
    Type of Medium: Monograph available for loan
    Pages: 230 S.
    ISBN: 3540560424
    Uniform Title: Applications de la géophysique aux recherches d`eau
    Classification:
    Applied Geology
    Language: German
    Location: Upper compact magazine
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  • 6
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    Toward a Global Public Repository of Community Protocols to Encourage Best Practices in Biomolecular Ocean Observing and Research (2021)
    Frontiers
    Details
    Publication Date: 2024-02-07
    Description: Biomolecular ocean observing and research is a rapidly evolving field that uses omics approaches to describe biodiversity at its foundational level, giving insight into the structure and function of marine ecosystems over time and space. It is an especially effective approach for investigating the marine microbiome. To mature marine microbiome research and operations within a global ocean biomolecular observing network (OBON) for the UN Decade of Ocean Science for Sustainable Development and beyond, research groups will need a system to effectively share, discover, and compare “omic” practices and protocols. While numerous informatic tools and standards exist, there is currently no global, publicly-supported platform specifically designed for sharing marine omics [or any omics] protocols across the entire value-chain from initiating a study to the publication and use of its results. Toward that goal, we propose the development of the Minimum Information for an Omic Protocol (MIOP), a community-developed guide of curated, standardized metadata tags and categories that will orient protocols in the value-chain for the facilitated, structured, and user-driven discovery of suitable protocol suites on the Ocean Best Practices System. Users can annotate their protocols with these tags, or use them as search criteria to find appropriate protocols. Implementing such a curated repository is an essential step toward establishing best practices. Sharing protocols and encouraging comparisons through this repository will be the first steps toward designing a decision tree to guide users to community endorsed best practices.
    Type: Article , PeerReviewed
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  • 7
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    Influence of Ocean Acidification and Deep Water Upwelling on Oligotrophic Plankton Communities in the Subtropical North Atlantic: Insights from an In situ Mesocosm Study (2017)
    Frontiers
    In:  Frontiers in Marine Science, 4 . Art.Nr. 85.
    Details
    Publication Date: 2021-04-23
    Description: Oceanic uptake of anthropogenic carbon dioxide (CO2) causes pronounced shifts in marine carbonate chemistry and a decrease in seawater pH. Increasing evidence indicates that these changes—summarized by the term ocean acidification (OA)—can significantly affect marine food webs and biogeochemical cycles. However, current scientific knowledge is largely based on laboratory experiments with single species and artificial boundary conditions, whereas studies of natural plankton communities are still relatively rare. Moreover, the few existing community-level studies were mostly conducted in rather eutrophic environments, while less attention has been paid to oligotrophic systems such as the subtropical ocean gyres. Here we report from a recent in situ mesocosm experiment off the coast of Gran Canaria in the eastern subtropical North Atlantic, where we investigated the influence of OA on the ecology and biogeochemistry of plankton communities in oligotrophic waters under close-to-natural conditions. This paper is the first in this Research Topic of Frontiers in Marine Biogeochemistry and provides (1) a detailed overview of the experimental design and important events during our mesocosm campaign, and (2) first insights into the ecological responses of plankton communities to simulated OA over the course of the 62-day experiment. One particular scientific objective of our mesocosm experiment was to investigate how OA impacts might differ between oligotrophic conditions and phases of high biological productivity, which regularly occur in response to upwelling of nutrient-rich deep water in the study region. Therefore, we specifically developed a deep water collection system that allowed us to obtain ~85 m3 of seawater from ~650 m depth. Thereby, we replaced ~20% of each mesocosm's volume with deep water and successfully simulated a deep water upwelling event that induced a pronounced plankton bloom. Our study revealed significant effects of OA on the entire food web, leading to a restructuring of plankton communities that emerged during the oligotrophic phase, and was further amplified during the bloom that developed in response to deep water addition. Such CO2-related shifts in plankton community composition could have consequences for ecosystem productivity, biomass transfer to higher trophic levels, and biogeochemical element cycling of oligotrophic ocean regions.
    Type: Article , PeerReviewed
    Format: text
    Format: text
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  • 8
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    Identifying Drivers of Seasonality in Lena River Biogeochemistry and Dissolved Organic Matter Fluxes (2020)
    Frontiers
    In:  Frontiers in Environmental Science, 8 . Art.Nr. 53 .
    Details
    Publication Date: 2021-01-08
    Description: Warming air temperatures, shifting hydrological regimes and accelerating permafrost thaw in the catchments of the Arctic rivers is affecting their biogeochemistry. Arctic river monitoring is necessary to observe changes in the mobilization of dissolved organic matter (DOM) from permafrost. The Lena River is the second largest Arctic river and 71% of its catchment is continuous permafrost. Biogeochemical parameters, including temperature, electrical conductivity (EC), stable water isotopes, dissolved organic carbon (DOC) and absorption by colored dissolved organic matter (aCDOM) have been measured as part of a new high-frequency sampling program in the central Lena River Delta. The results show strong seasonal variations of all biogeochemical parameters that generally follow seasonal patterns of the hydrograph. Optical indices of DOM indicate a trend of decreasing aromaticity and molecular weight from spring to winter. High-frequency sampling improved our estimated annual fluvial flux of annual dissolved organic carbon flux (6.79 Tg C). EC and stable isotope data were used to distinguish three different source water types which explain most of the seasonal variation in the biogeochemistry of the Lena River. These water types match signatures of (1) melt water, (2) rain water, and (3) subsurface water. Melt water and rain water accounted for 84% of the discharge flux and 86% of the DOC flux. The optical properties of melt water DOM were characteristic of fresh organic matter. In contrast, the optical properties of DOM in subsurface water revealed lower aromaticity and lower molecular weights, which indicate a shift toward an older organic matter source mobilized from deeper soil horizons or permafrost deposits. The first year of this new sampling program sets a new baseline for flux calculations of dissolved matter and has enabled the identification and characterization of water types that drive the seasonality of the Lena River water properties.
    Type: Article , PeerReviewed
    Format: text
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  • 9
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    The Future of the Arctic: What Does It Mean for Sea Ice and Small Creatures? (2020)
    Frontiers
    In:  Frontiers for Young Minds, 8 . Art.Nr. 97.
    Details
    Publication Date: 2021-01-08
    Description: The warming of our planet is changing the Arctic dramatically. The area covered by sea-ice is shrinking and the ice that is left is younger and thinner. We took part in an expedition to the Arctic, to study how these changes affect organisms living in and under the ice. Following this expedition, we found that storms can more easily break the thinner ice. Storms form cracks in the sea ice, allowing sunlight to pass into the water below, which makes algal growth possible. Algae are microscopic “plants” that grow in water or sea ice. Storms also brought thick heavy snow, which pushed the ice surface below the water. This flooded the snow and created slush. We discovered that this slush is another good habitat for algae. If Arctic sea ice continues to thin, and storms become more common, we expect that these algal habitats will become more important in the future.
    Type: Article , PeerReviewed
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  • 10
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    Mechanisms of P* Reduction in the Eastern Tropical South Pacific (2017)
    Frontiers
    Details
    Publication Date: 2023-09-19
    Description: Water masses influenced by oxygen minimum zones (OMZ) feature low inorganic nitrogen (N) to phosphorus (P) ratios. The surplus of P over N is thought to favor non-Redfield primary production by bloom-forming phytoplankton species. Additionally, excess phosphate (P*) is thought to provide a niche for nitrogen fixing organisms. In order to assess the effect of low inorganic nutrient ratios on the stoichiometry and composition of primary producers, biogeochemical measurements were carried out in 2012 during a research cruise in the eastern tropical South Pacific (ETSP). Based on pigment analyses, a succession of different phytoplankton functional groups was observed along onshore—offshore transects with diatoms dominating the productive upwelling region, and prymnesiophytes, cryptophytes, and Synechococcus prevailing in the oligotrophic open ocean. Although inorganic nutrient supply ratios were below Redfield proportions throughout the sampling area, the stoichiometry of particulate organic nitrogen to phosphorus (PON:POP) generally exceeded ratios of 16:1. Despite PON:POP ≥ 16, high P*-values in the surface layer (0–50 m) above the shelf rapidly decreased as water masses were advected offshore. There are three mechanisms which can explain these observations: (1) non-Redfield primary production, where the excess phosphorus in the biomass is directly released as dissolved organic phosphorus (DOP), (2) non-Redfield primary production, which is masked by a particulate organic matter pool mainly consisting of P-depleted detrital biomass, and/or (3) Redfield primary production combined with dinitrogen (N2) fixation. Our observations suggest that the three processes occur simultaneously in the study area; quantifying the relative importance of each of these mechanisms needs further investigation. Therefore, it remains uncertain whether the ETSP is a net sink for bioavailable N or whether the N-deficit in this area is replenished locally.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
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