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  • Forschungsdaten  (35)
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  • 1
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    Unbekannt
    Global distributions of picophytoplankton abundance and biomass - Gridded data product (NetCDF) - Contribution to the MAREDAT World Ocean Atlas of Plankton Functional Types (2012)
    PANGAEA
    Details
    Publikationsdatum: 2023-03-27
    Beschreibung: The smallest marine phytoplankton, collectively termed picophytoplankton, have been routinely enumerated by flow cytometry since the late 1980s, during cruises throughout most of the world ocean. We compiled a database of 40,946 data points, with separate abundance entries for Prochlorococcus, Synechococcus and picoeukaryotes. We use average conversion factors for each of the three groups to convert the abundance data to carbon biomass. After gridding with 1° spacing, the database covers 2.4% of the ocean surface area, with the best data coverage in the North Atlantic, the South Pacific and North Indian basins. The average picophytoplankton biomass is 12 ± 22 µg C L-1 or 1.9 g C m-2. We estimate a total global picophytoplankton biomass, excluding N2-fixers, of 0.53 - 0.74 Pg C (17 - 39 % Prochlorococcus, 12 - 15 % Synechococcus and 49 - 69 % picoeukaryotes). Future efforts in this area of research should focus on reporting calibrated cell size, and collecting data in undersampled regions.
    Schlagwort(e): MAREMIP; MARine Ecosystem Model Intercomparison Project
    Materialart: Dataset
    Format: application/zip, 6.6 MBytes
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
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    Unbekannt
    Picoheterotrophs in the central gyre of the North Atlantic Ocean (2014)
    PANGAEA
    Details
    Publikationsdatum: 2023-01-13
    Schlagwort(e): 3175MB93; 3175MB93/10-12; 3175MB93/12-15; 3175MB93/14-17; 3175MB93/16-19; 3175MB93/18-21; 3175MB93/20-23; 3175MB93/22-26; 3175MB93/2-3; 3175MB93/23-27; 3175MB93/24-28; 3175MB93/25-29; 3175MB93/26-30; 3175MB93/27-31; 3175MB93/28-33; 3175MB93/29-35; 3175MB93/30-38; 3175MB93/31-39; 3175MB93/34-42; 3175MB93/35-43; 3175MB93/37-44; 3175MB93/37-45; 3175MB93/38-46; 3175MB93/39-47; 3175MB93/40-48; 3175MB93/41-49; 3175MB93/42-50; 3175MB93/43-52; 3175MB93/44-53; 3175MB93/45-54; 3175MB93/4-6; 3175MB93/46-55; 3175MB93/47-56; 3175MB93/48-57; 3175MB93/49-58; 3175MB93/50-59; 3175MB93/52-61; 3175MB93/53-62; 3175MB93/58-67; 3175MB93/60-69; 3175MB93/64-73; 3175MB93/6-8; 3175MB93/68-78; 3175MB93/70-80; 3175MB93/73-83; 3175MB93/74-84; 3175MB93/75-85; 3175MB93/76-86; 3175MB93/77-87; 3175MB93/78-88; 3175MB93/80-90; 3175MB93/8-10; CTD/Rosette; CTD-RO; Date/Time of event; DEPTH, water; Event label; Flow cytometry; Latitude of event; Longitude of event; Malcolm Baldrige; Prokaryotes
    Materialart: Dataset
    Format: text/tab-separated-values, 141 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
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    Unbekannt
    Shipboard acoustic doppler current profiling during cruise NH9803 (SAC ID 00428) (2005)
    PANGAEA
    Details
    Publikationsdatum: 2023-02-24
    Schlagwort(e): Acoustic Doppler Current Profiler; ADCP; Current velocity, east-west; Current velocity, north-south; DATE/TIME; DEPTH, water; LATITUDE; LONGITUDE; New Horizon; NH9803; NH9803_00428; Shipboard Acoustic Doppler Current Profiling (SADCP); Ship velocity, absolute east-west, standard deviation; Ship velocity, absolute east-west components means; Ship velocity, absolute north-south components mean; Ship velocity, absolute north-south standard deviation; Temperature, technical; Temperature, technical, standard deviation; WOCE; World Ocean Circulation Experiment
    Materialart: Dataset
    Format: text/tab-separated-values, 13077 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
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    Unbekannt
    Shipboard acoustic doppler current profiling during cruise NH9808 (SAC ID 00429) (2005)
    PANGAEA
    Details
    Publikationsdatum: 2023-02-24
    Schlagwort(e): Acoustic Doppler Current Profiler; ADCP; Current velocity, east-west; Current velocity, north-south; DATE/TIME; DEPTH, water; LATITUDE; LONGITUDE; New Horizon; NH9808; NH9808_00429; Shipboard Acoustic Doppler Current Profiling (SADCP); Ship velocity, absolute east-west, standard deviation; Ship velocity, absolute east-west components means; Ship velocity, absolute north-south components mean; Ship velocity, absolute north-south standard deviation; Temperature, technical; Temperature, technical, standard deviation; WOCE; World Ocean Circulation Experiment
    Materialart: Dataset
    Format: text/tab-separated-values, 6144 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
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    Unbekannt
    Shipboard acoustic doppler current profiling during cruise PS97X6 (SAC ID 00424) (2005)
    PANGAEA
    Details
    Publikationsdatum: 2023-02-24
    Schlagwort(e): Acoustic Doppler Current Profiler; ADCP; Current velocity, east-west; Current velocity, north-south; DATE/TIME; DEPTH, water; LATITUDE; LONGITUDE; Point Sur; PS97X6; PS97X6_00424; Shipboard Acoustic Doppler Current Profiling (SADCP); Ship velocity, absolute east-west, standard deviation; Ship velocity, absolute east-west components means; Ship velocity, absolute north-south components mean; Ship velocity, absolute north-south standard deviation; Temperature, technical; Temperature, technical, standard deviation; WOCE; World Ocean Circulation Experiment
    Materialart: Dataset
    Format: text/tab-separated-values, 5906 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
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    KOSMOS 2017 Peru mesocosm study: overview data (2020)
    PANGAEA
    Details
    Publikationsdatum: 2024-04-20
    Beschreibung: Eastern boundary upwelling systems (EBUS) are among the most productive marine ecosystems on Earth. The production of organic material is fueled by upwelling of nutrient-rich deep waters and high incident light at the sea surface. However, biotic and abiotic factors can mod- ify surface production and related biogeochemical processes. Determining these factors is important because EBUS are considered hotspots of climate change, and reliable predic- tions of their future functioning requires understanding of the mechanisms driving the biogeochemical cycles therein. In this field experiment, we used in situ mesocosms as tools to improve our mechanistic understanding of processes con- trolling organic matter cycling in the coastal Peruvian up- welling system. Eight mesocosms, each with a volume of ∼ 55 m3, were deployed for 50 d ∼ 6 km off Callao (12◦ S) during austral summer 2017, coinciding with a coastal El Niño phase. After mesocosm deployment, we collected sub- surface waters at two different locations in the regional oxy- gen minimum zone (OMZ) and injected these into four meso- cosms (mixing ratio ≈ 1.5 : 1 mesocosm: OMZ water). The focus of this paper is on temporal developments of organic matter production, export, and stoichiometry in the indi- vidual mesocosms. The mesocosm phytoplankton commu- nities were initially dominated by diatoms but shifted to- wards a pronounced dominance of the mixotrophic dinoflag- ellate (Akashiwo sanguinea) when inorganic nitrogen was exhausted in surface layers. The community shift coincided with a short-term increase in production during the A. san- guinea bloom, which left a pronounced imprint on organic matter C : N : P stoichiometry. However, C, N, and P export fluxes did not increase because A. sanguinea persisted in the water column and did not sink out during the experiment. Accordingly, export fluxes during the study were decou- pled from surface production and sustained by the remain- ing plankton community. Overall, biogeochemical pools and fluxes were surprisingly constant for most of the experiment. We explain this constancy by light limitation through self- shading by phytoplankton and by inorganic nitrogen limita- tion which constrained phytoplankton growth. Thus, gain and loss processes remained balanced and there were few oppor- tunities for blooms, which represents an event where the sys- tem becomes unbalanced. Overall, our mesocosm study re- vealed some key links between ecological and biogeochem- ical processes for one of the most economically important regions in the oceans.
    Schlagwort(e): Binary Object; Binary Object (File Size); Binary Object (Media Type); Climate - Biogeochemistry Interactions in the Tropical Ocean; KOSMOS_2017; KOSMOS_2017_Peru; KOSMOS Peru; MESO; Mesocosm experiment; SFB754
    Materialart: Dataset
    Format: text/tab-separated-values, 11 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
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    Unbekannt
    Surface Ocean CO2 Atlas (SOCAT) V1.4 (2013)
    PANGAEA
    In:  Supplement to: Pfeil, Benjamin; Olsen, Are; Bakker, Dorothee C E; Hankin, Steven; Koyuk, Heather; Kozyr, Alexander; Malczyk, Jeremy; Manke, Ansley; Metzl, Nicolas; Sabine, Christopher L; Akl, John; Alin, Simone R; Bellerby, Richard G J; Borges, Alberto Vieira; Boutin, Jacqueline; Brown, Peter J; Cai, Wei-Jun; Chavez, Francisco P; Chen, Arthur; Cosca, Catherine E; Fassbender, Andrea J; Feely, Richard A; González-Dávila, Melchor; Goyet, Catherine; Hardman-Mountford, Nicolas J; Heinze, Christoph; Hood, E Maria; Hoppema, Mario; Hunt, Christopher W; Hydes, David; Ishii, Masao; Johannessen, Truls; Jones, Steve D; Key, Robert M; Körtzinger, Arne; Landschützer, Peter; Lauvset, Siv K; Lefèvre, Nathalie; Lenton, Andrew; Lourantou, Anna; Merlivat, Liliane; Midorikawa, Takashi; Mintrop, Ludger J; Miyazaki, Chihiro; Murata, Akihiko; Nakadate, Akira; Nakano, Yoshiyuki; Nakaoka, Shin-Ichiro; Nojiri, Yukihiro; Omar, Abdirahman M; Padín, Xose Antonio; Park, Geun-Ha; Paterson, Kristina; Pérez, Fiz F; Pierrot, Denis; Poisson, Alain; Ríos, Aida F; Santana-Casiano, Juana Magdalena; Salisbury, Joe; Sarma, Vedula V S S; Schlitzer, Reiner; Schneider, Bernd; Schuster, Ute; Sieger, Rainer; Skjelvan, Ingunn; Steinhoff, Tobias; Suzuki, Toru; Takahashi, Taro; Tedesco, Kathy; Telszewski, Maciej; Thomas, Helmuth; Tilbrook, Bronte; Tjiputra, Jerry; Vandemark, Doug; Veness, Tony; Wanninkhof, Rik; Watson, Andrew J; Weiss, Ray F; Wong, Chi Shing; Yoshikawa-Inoue, Hisayuki (2013): A uniform, quality controlled Surface Ocean CO2 Atlas (SOCAT). Earth System Science Data, 5(1), 125-143, https://doi.org/10.5194/essd-5-125-2013
    Details
    Publikationsdatum: 2024-05-02
    Beschreibung: A well-documented, publicly available, global data set of surface ocean carbon dioxide (CO2) parameters has been called for by international groups for nearly two decades. The Surface Ocean CO2 Atlas (SOCAT) project was initiated by the international marine carbon science community in 2007 with the aim of providing a comprehensive, publicly available, regularly updated, global data set of marine surface CO2, which had been subject to quality control (QC). Many additional CO2 data, not yet made public via the Carbon Dioxide Information Analysis Center (CDIAC), were retrieved from data originators, public websites and other data centres. All data were put in a uniform format following a strict protocol. Quality control was carried out according to clearly defined criteria. Regional specialists performed the quality control, using state-of-the-art web-based tools, specially developed for accomplishing this global team effort. SOCAT version 1.5 was made public in September 2011 and holds 6.3 million quality controlled surface CO2 data points from the global oceans and coastal seas, spanning four decades (1968-2007). Three types of data products are available: individual cruise files, a merged complete data set and gridded products. With the rapid expansion of marine CO2 data collection and the importance of quantifying net global oceanic CO2 uptake and its changes, sustained data synthesis and data access are priorities.
    Schlagwort(e): 0306SFC_PRT; 061ASFC_PRT; 06AQ19860627-track; 06AQ19860928-track; 06AQ19911114-track; 06AQ19911210-track; 06AQ19921005-track; 06AQ19930128-track; 06AQ19930228-track; 06AQ19931019-track; 06AQ19940524-track; 06AQ19951206-track; 06AQ19960320-track; 06AQ19980411-track; 06AQ19990327-track; 06AQ20001004-track; 06AQ20001026-track; 06BE19961010-track; 06CK20060523-track; 06CK20060715-track; 06CK20060821-track; 06GA19960613-track; 06GA276_3; 06LB19831130-track; 06LB19840107-track; 06LB19840629-track; 06LB19850110-track; 06LB19850313-track; 06LB19850812-track; 06LB19860116-track; 06LB19860323-track; 06LB19860801-track; 06LB19861011-track; 06LB19861214-track; 06LB19870221-track; 06LB19870501-track; 06LB19870721-track; 06LB19870920-track; 06LB19871126-track; 06LB19871231-track; 06LB19880204-track; 06MT18_1; 06MT19910903-track; 06MT19920510-track; 06MT19921229-track; 06MT19941012-track; 06MT19941119-track; 06MT19950714-track; 06MT19960607-track; 06MT19960622-track; 06MT19970106-track; 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    Materialart: Dataset
    Format: application/zip, 1851 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
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    Unbekannt
    Surface Ocean CO2 Atlas (SOCAT) V2 (2014)
    PANGAEA
    In:  Supplement to: Bakker, Dorothee C E; Pfeil, Benjamin; Smith, Karl; Hankin, Steven; Olsen, Are; Alin, Simone R; Cosca, Catherine E; Harasawa, Sumiko; Kozyr, Alexander; Nojiri, Yukihiro; O'Brien, Kevin M; Schuster, Ute; Telszewski, Maciej; Tilbrook, Bronte; Wada, Chisato; Akl, John; Barbero, Leticia; Bates, Nicolas R; Boutin, Jacqueline; Bozec, Yann; Cai, Wei-Jun; Castle, Robert D; Chavez, Francisco P; Chen, Lei; Chierici, Melissa; Currie, Kim I; de Baar, Hein J W; Evans, Wiley; Feely, Richard A; Fransson, Agneta; Gao, Zhongyong; Hales, Burke; Hardman-Mountford, Nicolas J; Hoppema, Mario; Huang, Wei-Jen; Hunt, Christopher W; Huss, Betty; Ichikawa, Tadafumi; Johannessen, Truls; Jones, Elizabeth M; Jones, Steve D; Jutterstrøm, Sara; Kitidis, Vassilis; Körtzinger, Arne; Landschützer, Peter; Lauvset, Siv K; Lefèvre, Nathalie; Manke, Ansley; Mathis, Jeremy T; Merlivat, Liliane; Metzl, Nicolas; Murata, Akihiko; Newberger, Timothy; Omar, Abdirahman M; Ono, Tsuneo; Park, Geun-Ha; Paterson, Kristina; Pierrot, Denis; Ríos, Aida F; Sabine, Christopher L; Saito, Shu; Salisbury, Joe; Sarma, Vedula V S S; Schlitzer, Reiner; Sieger, Rainer; Skjelvan, Ingunn; Steinhoff, Tobias; Sullivan, Kevin; Sun, Heng; Sutton, Adrienne; Suzuki, Toru; Sweeney, Colm; Takahashi, Taro; Tjiputra, Jerry; Tsurushima, Nobuo; van Heuven, Steven; Vandemark, Doug; Vlahos, Penny; Wallace, Douglas WR; Wanninkhof, Rik; Watson, Andrew J (2014): An update to the Surface Ocean CO2 Atlas (SOCAT version 2). Earth System Science Data, 6(1), 69-90, https://doi.org/10.5194/essd-6-69-2014
    Details
    Publikationsdatum: 2024-05-02
    Beschreibung: The Surface Ocean CO2 Atlas (SOCAT), an activity of the international marine carbon research community, provides access to synthesis and gridded fCO2 (fugacity of carbon dioxide) products for the surface oceans. Version 2 of SOCAT is an update of the previous release (version 1) with more data (increased from 6.3 million to 10.1 million surface water fCO2 values) and extended data coverage (from 1968-2007 to 1968-2011). The quality control criteria, while identical in both versions, have been applied more strictly in version 2 than in version 1. The SOCAT website (http://www.socat.info/) has links to quality control comments, metadata, individual data set files, and synthesis and gridded data products. Interactive online tools allow visitors to explore the richness of the data. Applications of SOCAT include process studies, quantification of the ocean carbon sink and its spatial, seasonal, year-to-year and longerterm variation, as well as initialisation or validation of ocean carbon models and coupled climate-carbon models.
    Schlagwort(e): SOCAT; Surface Ocean CO2 Atlas Project
    Materialart: Dataset
    Format: application/zip, 2669 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 9
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    Seawater carbonate chemistry and mortality of pteropods Limacina helicina (2022)
    PANGAEA
    Details
    Publikationsdatum: 2024-05-22
    Beschreibung: Global change is impacting the oceans in an unprecedented way with resulting changes in species distributions or species loss. There is increasing evidence that multiple environmental stressors act together to constrain species habitat more than expected from single stressor. Here, we conducted a comprehensive study of the combined impact of ocean warming and acidification (OWA) on a global distribution of pteropods, ecologically important pelagic calcifiers and an indicator species for ocean change. We co-validated three different approaches to evaluate the impact of OWA on pteropod survival and distribution. First, we used co-located physical, chemical, and biological data from oceanographic cruises and regional time-series; second, we conducted multifactorial experimental incubations using OWA to evaluate survival; and third, we validated pteropod distributions using global carbonate chemistry and observation datasets. Habitat suitability indices and global distributions suggest that a multi-stressor framework is essential for understanding distributions of this pelagic calcifier.
    Schlagwort(e): Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calcite saturation state, standard deviation; Calculated using seacarb after Nisumaa et al. (2010); Calculated using seacarb after Orr et al. (2018); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; Coast and continental shelf; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Fugacity of carbon dioxide in seawater, standard deviation; Laboratory experiment; Limacina helicina; Mollusca; Mortality; Mortality, standard deviation; Mortality/Survival; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; pH, standard deviation; Phosphate; Phosphate, standard deviation; Replicates; Salinity; Salinity, standard deviation; Silicate; Silicate, standard deviation; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Temperate; Temperature; Temperature, water; Temperature, water, standard deviation; Treatment; Type; Zooplankton
    Materialart: Dataset
    Format: text/tab-separated-values, 160 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 10
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    Unbekannt
    Chlorophyll a concentration obtained by HPLC and fluorometric/spectrophotometric determination (Version 3) (2022)
    PANGAEA
    Details
    Publikationsdatum: 2024-05-28
    Schlagwort(e): Bio-optical in-situ data; Chlorophyll a, fluorometric or spectrophotometric determination; Chlorophyll a as carbon; Comment; DATE/TIME; DEPTH, water; ESA_OC-CCI; High Performance Liquid Chromatography (HPLC); Identification; LATITUDE; LONGITUDE; Ocean Colour; Ocean Colour multi-mission algorithm prototype system; OMAPS; Quality flag, chlorophyll; Quality flag, time; remote sensing
    Materialart: Dataset
    Format: text/tab-separated-values, 444442 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
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