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  • PANGAEA  (16)
  • 2015-2019  (16)
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Keywords
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Years
Year
  • 1
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    Underway physical oceanography and carbon dioxide measurements during AkzoNobel cruise CISG20180319 (2019)
    PANGAEA
    In:  GEOMAR - Helmholtz Centre for Ocean Research Kiel
    Details
    Publication Date: 2023-11-24
    Keywords: AkzoNobel; Algorithm; CISG20180319; CISG20180319-track; CT; DATE/TIME; Depth, bathymetric, interpolated/gridded; DEPTH, water; Distance; extracted from the 2-Minute Gridded Global Relief Data (ETOPO2); extracted from the NCEP/NCAR 40-Year Reanalysis Project; extracted from the World Ocean Atlas 2005; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); LATITUDE; LONGITUDE; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pressure, atmospheric, interpolated; Quality flag; Recomputed after SOCAT (Pfeil et al., 2013); Salinity; Salinity, interpolated; SOCAT; Surface Ocean CO2 Atlas Project; Temperature, water; Underway cruise track measurements
    Type: Dataset
    Format: text/tab-separated-values, 4992 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Coccolithophore distribution in the Mediterranean Sea during spring 2011 (M84/3 cruise) (2017)
    PANGAEA
    In:  Supplement to: Oviedo, Angela Maria; Ziveri, Patrizia; Álvarez, Marta; Tanhua, Toste (2015): Is coccolithophore distribution in the Mediterranean Sea related to seawater carbonate chemistry? Ocean Science, 11(1), 13-32, https://doi.org/10.5194/os-11-13-2015
    Details
    Publication Date: 2024-03-14
    Description: The Mediterranean Sea is considered a "hot spot" for climate change, being characterized by oligotrophic to ultra-oligotrophic waters and rapidly increasing seasurface temperature and changing carbonate chemistry. Coccolithophores are considered a dominant phytoplankton group in these waters. As marine calcifying organisms they are expected to respond to the ongoing changes in seawater carbonate chemistry. We provide here a description of the springtime coccolithophore distribution in the Mediterranean Sea and relate this to a broad set of in situ-measured environmental variables. Samples were taken during the R/V Meteor (M84/3) oceanographic cruise in April 2011, between 0 and 100 m water depth from 28 stations. Total diatom and silicoflagellate cell concentrations are also presented. Our results highlight the importance of seawater carbonate chemistry, especially [CO3]2- but also [PO4]3- in unraveling the distribution of heterococcolithophores, the most abundant coccolithophore life phase. Holo- and heterococcolithophores respond differently to environmental factors. For instance, changes in heterococcolithophore assemblages were best linked to the combination of [CO3]2-, pH, and salinity (rho = 0.57), although salinity might be not functionally related to coccolithophore assemblage distribution. Holococcolithophores, on the other hand, showed higher abundances and species diversity in oligotrophic areas (best fit, rho = 0.32 for nutrients), thriving in nutrient-depleted waters. Clustering of heterococcolithophores revealed three groups of species sharing more than 65% similarities. These clusters could be assigned to the eastern and western basins and deeper layers (below 50 m), respectively. In addition, the species Gephyrocapsa oceanica, G. muellerae, and Emiliania huxleyi morphotype B/C are spatially distributed together and trace the influx of Atlantic waters into the Mediterranean Sea. The results of the present work emphasize the importance of considering holo- and heterococcolithophores separately when analyzing changes in species assemblages and diversity. Our findings suggest that coccolithophores are a main phytoplankton group in the entire Mediterranean Sea and can dominate over siliceous phytoplankton. They have life stages that are expected to respond differently to the variability in seawater carbonate chemistry and nutrient concentrations.
    Keywords: Acanthoica biscayensis; Acanthoica quattrospina; Adriatic Sea; Aegean Sea; Alboran Sea; Algirosphaera cucullata; Algirosphaera robusta; Alisphaera capulata; Alisphaera extenta; Alisphaera gaudii; Alisphaera ordinata; Alisphaera unicornis; Anacanthoica acanthos; Anoplosolenia brasiliensis; Anthosphaera lafourcadii; Anthosphaera origami; Anthosphaera periperforata; Anthosphaera sp.; Calcidiscus leptoporus; Calcidiscus leptoporus ssp. leptoporus; Calcidiscus leptoporus ssp. quadriperforatus; Calciopappus caudatus; Calciopappus rigidus; Calciosolenia murrayi; Calicasphaera concava; Calyptrolithina divergens; Calyptrolithina multipora; Calyptrosphaera cialdii; Calyptrosphaera dentata; Calyptrosphaera heimdalae; Calyptrosphaera sp.; Calyptrosphaera sphaeroidea; Cells, total; Ceratolithus cristatus; Coccolithophores; Coccolithophoridae sp.; Coccolithus pelagicus ssp. braarudii; Confidence; Corisphaera gracilis; Corisphaera sp.; Corisphaera strigilis; Corisphaera tyrrheniensis; Coronosphaera binodata; Coronosphaera mediterranea; CTD/Rosette; CTD-RO; Cyrtosphaera lecaliae; DATE/TIME; DEPTH, water; Diatoms; Dictyota sp.; Dinoflagellates; Discosphaera tubifera; Diversity; Eastern Basin; Elevation of event; Emiliania huxleyi; Ericiolus spp.; Event label; Florisphaera profunda; Gephyrocapsa ericsonii; Gephyrocapsa muellerae; Gephyrocapsa oceanica; Gephyrocapsa ornata; Gladiolithus flabellatus; Gliscolithus amitakarenae; Hayaster perplexus; Helicosphaera carteri; Helicosphaera pavimentum; Helladosphaera cornifera; Heterococcolithophores; Holococcolithophora; Homozygosphaera spinosa; Homozygosphaera triarcha; Homozygosphaera vercelli; Ionian Sea; Kataspinifera baumannii; Latitude of event; Longitude of event; M287; M288; M291; M292; M293; M294; M296; M297; M298; M299; M302; M305; M306; M307; M308; M309; M313; M316; M319; M320; M321; M324; M329; M331; M332; M334; M337; M338; M84/3; M84/3_287; M84/3_288; M84/3_291; M84/3_292; M84/3_293; M84/3_294; M84/3_296; M84/3_297; M84/3_298; M84/3_299; M84/3_302; M84/3_305; M84/3_306; M84/3_307; M84/3_308; M84/3_309; M84/3_313; M84/3_316; M84/3_319; M84/3_320; M84/3_321; M84/3_324; M84/3_329; M84/3_331; M84/3_332; M84/3_334; M84/3_337; M84/3_338; Mediterranean Sea Acidification in a Changing Climate; MedSeA; Meringosphaera mediterranea; Meteor (1986); Michaelsaria elegans; Number of species; Ophiaster formosus; Ophiaster hydroideus; Palusphaera vandelii; Papposphaera lepida; Papposphaera sp.; Phytoplankton; Pleurochrysis carterae; Polycrater galapagensis; Polycrater spp.; Pontosphaera japonica; Poricalyptra gaarderae; Poritectolithus maximus; Pressure, water; Reticulofenestra parvula; Rhabdosphaera clavigera var. clavigera; Rhabdosphaera xiphos; Scyphosphaera apsteinii; Sphaerocalyptra adenensis; Sphaerocalyptra quadridentata; Sphaerocalyptra sp.; Strait of Gibraltar; Syracolithus sp.; Syracosphaera ampliora; Syracosphaera anthos; Syracosphaera arethusae; Syracosphaera bannockii; Syracosphaera borealis; Syracosphaera corolla; Syracosphaera delicata; Syracosphaera dilatata; Syracosphaera histrica; Syracosphaera lamina; Syracosphaera marginiporata; Syracosphaera molischii; Syracosphaera nana; Syracosphaera nodosa; Syracosphaera noroitica; Syracosphaera ossa; Syracosphaera pirus; Syracosphaera prolongata; Syracosphaera protrudens; Syracosphaera pulchra; Syracosphaera rotula; Syracosphaera sp.; Syracosphaera spp.; Syracosphaera tumularis; Tirreno Sea; Umbellosphaera tenuis; Umbilicosphaera hulburtiana; Umbilicosphaera sibogae var. sibogae; Western Basin; Zygosphaera amoena
    Type: Dataset
    Format: text/tab-separated-values, 11340 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Continuous meteorological surface measurement during METEOR cruise M97 (2016)
    PANGAEA
    Details
    Publication Date: 2024-02-02
    Keywords: ALTITUDE; Atlantic Ocean; Climate - Biogeochemistry Interactions in the Tropical Ocean; CT; DATE/TIME; Heading; Humidity, relative; LATITUDE; LONGITUDE; Long-wave radiation; M97; M97-track; Meteor (1986); Pressure, atmospheric; SFB754; Short-wave downward (GLOBAL) radiation; Speed, velocity; Temperature, air; Ultraviolet radiation; Underway cruise track measurements; Visibility; Wind direction; Wind speed
    Type: Dataset
    Format: text/tab-separated-values, 598928 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Surface oceanographic data during METEOR cruise M97 (2016)
    PANGAEA
    Details
    Publication Date: 2024-02-02
    Keywords: Atlantic Ocean; Climate - Biogeochemistry Interactions in the Tropical Ocean; CT; DATE/TIME; DEPTH, water; LATITUDE; LONGITUDE; M97; M97-track; Meteor (1986); Salinity; SFB754; Temperature, water; Underway cruise track measurements
    Type: Dataset
    Format: text/tab-separated-values, 228372 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Hydrochemistry of water samples during Maria S. Merian cruise MSM23 (2015)
    PANGAEA
    Details
    Publication Date: 2024-02-02
    Keywords: Alkalinity, total; Bottle number; Carbon, inorganic, dissolved; Climate - Biogeochemistry Interactions in the Tropical Ocean; CTD; CTD/Rosette; CTD001; CTD002; CTD003; CTD004; CTD005; CTD006; CTD007; CTD008; CTD009; CTD010; CTD011; CTD012; CTD013; CTD014; CTD015; CTD016; CTD017; CTD018; CTD019; CTD020; CTD023; CTD024; CTD025; CTD026; CTD027; CTD029; CTD030; CTD031; CTD032; CTD033; CTD034; CTD035; CTD036; CTD037; CTD038; CTD039; CTD040; CTD041; CTD042; CTD043; CTD044; CTD045; CTD046; CTD047; CTD048; CTD049; CTD050; CTD051; CTD052; CTD053; CTD054; CTD055; CTD056; CTD057; CTD058; CTD059; CTD060; CTD061; CTD062; CTD063; CTD064; CTD066; CTD067; CTD-RO; Date/Time of event; DEPTH, water; Event label; Latitude of event; Longitude of event; Maria S. Merian; MSM23; MSM23_760-2; MSM23_761-2; MSM23_762-2; MSM23_763-1; MSM23_764-2; MSM23_765-1; MSM23_766-1; MSM23_767-3; MSM23_768-1; MSM23_769-3; MSM23_770-1; MSM23_771-1; MSM23_772-3; MSM23_773-1; MSM23_774-3; MSM23_775-1; MSM23_776-3; MSM23_777-1; MSM23_778-3; MSM23_779-1; MSM23_782-1; MSM23_783-1; MSM23_784-1; MSM23_785-3; MSM23_786-1; MSM23_788-1; MSM23_789-1; MSM23_790-1; MSM23_791-1; MSM23_792-1; MSM23_793-3; MSM23_794-1; MSM23_795-1; MSM23_796-1; MSM23_797-1; MSM23_798-3; MSM23_799-1; MSM23_800-3; MSM23_801-1; MSM23_802-1; MSM23_803-1; MSM23_804-3; MSM23_805-1; MSM23_806-1; MSM23_807-1; MSM23_808-1; MSM23_809-1; MSM23_810-1; MSM23_811-2; MSM23_812-1; MSM23_813-3; MSM23_814-1; MSM23_815-1; MSM23_816-3; MSM23_817-2; MSM23_818-1; MSM23_820-4; MSM23_821-1; MSM23_822-1; MSM23_823-1; MSM23_824-2; MSM23_824-5; MSM23_825-2; Oxygen; Pressure, water; Profile; Salinity; Sample code/label; SFB754; Temperature, water; Trifluoromethyl sulfur pentafluoride
    Type: Dataset
    Format: text/tab-separated-values, 6363 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    Argon-39 data from water samples during METEOR cruise M116/1 (2018)
    PANGAEA
    In:  Supplement to: Ebser, Sven; Kersting, Arne; Stöven, Tim; Feng, Zhongyi; Ringena, Lisa; Schmidt, Maximilian; Tanhua, Toste; Aeschbach-Hertig, Werner; Oberthaler, Markus K (2018): 39Ar dating with small samples provides new key constraints on ocean ventilation. Nature Communications, 9(1), https://doi.org/10.1038/s41467-018-07465-7
    Details
    Publication Date: 2024-02-02
    Description: Ocean ventilation is the integrated effect of various processes that exchange surface properties with the ocean interior and is essential for oxygen supply, storage of anthropogenic carbon and the heat budget of the ocean, for instance. Current observational methods utilise transient tracers, e.g. tritium, SF6, CFCs and 14C. However, their dating ranges are not ideal to resolve the centennial-dynamics of the deep ocean, a gap filled by the noble gas isotope 39Ar with a half-life of 269 years. Its broad application has been hindered by its very low abundance, requiring 1000 L of water for dating. Here we show successful 39Ar dating with 5 L of water based on the atom-optical technique Atom Trap Trace Analysis. Our data reveal previously not quantifiable ventilation patterns in the Tropical Atlantic, where we find that advection is more important for the ventilation of the intermediate depth range than previously assumed. Now, the demonstrated analytical capabilities allow for a global collection of 39Ar data, which will have significant impact on our ability to quantify ocean ventilation.
    Keywords: Argon-39; Climate - Biogeochemistry Interactions in the Tropical Ocean; CTD/Rosette; CTD 44; CTD 55; CTD 82; CTD-RO; DEPTH, water; Event label; LATITUDE; LONGITUDE; M116/1; M116/1_517-1; M116/1_528-1; M116/1_555-1; Meteor (1986); OSTRE_IV; Pressure, water; Salinity; Sample code/label; SFB754; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 140 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 7
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    Oxygen Utilization and Downward Carbon Flux in an Oxygen-Depleted Eddy in the Eastern Tropical North Atlantic (2016)
    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
    Details
    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 Limitation Availability
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    DATA PANGAEA
  • 8
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    Physical oceanography during MedSHIP cruise Talpro (2019)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: The TAlPro cruise (Palermo - Barcelona, RV Angeles Alvariño, 18/-8/2016 - 29/08/2-16) occupied three hydrographic transects across the Tyrrhenian Sea, the western Mediterranean Sea and the Catalan Basin (Fig. 1) as part of the MedSHIP programme (Mediterranean Ship-based Hydrographic Investigations Program). A total of 43 stations were occupied during which physical (temperature, salinity, pressure, velocity), biogeochemical (oxygen, nutrients, carbonate system, dissolved Barium, oxygen and nitrogen isotopes) and anthropic (CFCs, SF6) parameters were measured in order to monitor the physical and biogeochemical state of the Mediterranean Sea.
    Keywords: 1; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 2; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 3; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 4; 40; 41; 42; 43; 5; 6; 7; 8; 9; Angeles Alvarino; Conductivity; CTD, Sea-Bird, SBE 9; CTD, Sea-Bird, SBE 911; CTD, SEA-BIRD SBE 43; CTD/Rosette; CTD-RO; Date/Time of event; Density, mass density; Density, sigma-theta (0); DEPTH, water; Event label; Flag; Fluorescence, chlorophyll; Latitude of event; Longitude of event; Oxygen, dissolved; Pressure, water; Salinity; Salinity, absolute; Sample code/label; TAlPro-2016; TAlPro-2016_001; TAlPro-2016_002; TAlPro-2016_003; TAlPro-2016_004; TAlPro-2016_005; TAlPro-2016_006; TAlPro-2016_007; TAlPro-2016_008; TAlPro-2016_009; TAlPro-2016_010; TAlPro-2016_011; TAlPro-2016_012; TAlPro-2016_013; TAlPro-2016_014; TAlPro-2016_015; TAlPro-2016_016; TAlPro-2016_017; TAlPro-2016_018; TAlPro-2016_019; TAlPro-2016_020; TAlPro-2016_021; TAlPro-2016_022; TAlPro-2016_023; TAlPro-2016_024; TAlPro-2016_025; TAlPro-2016_026; TAlPro-2016_027; TAlPro-2016_028; TAlPro-2016_029; TAlPro-2016_030; TAlPro-2016_031; TAlPro-2016_032; TAlPro-2016_033; TAlPro-2016_034; TAlPro-2016_035; TAlPro-2016_036; TAlPro-2016_037; TAlPro-2016_038; TAlPro-2016_039; TAlPro-2016_040; TAlPro-2016_041; TAlPro-2016_042; TAlPro-2016_043; Temperature, water; Temperature, water, conservative; Temperature, water, potential; Turbidity (Nephelometric turbidity unit)
    Type: Dataset
    Format: text/tab-separated-values, 1767381 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 9
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    Surface Ocean CO2 Atlas (SOCAT) v2019. New and updated individual cruise datasets (2019)
    PANGAEA
    Details
    Publication Date: 2024-05-02
    Description: The Surface Ocean CO2 Atlas (SOCAT) is a synthesis activity by the international marine carbon research community (〉100 contributors). SOCATv2019 has 25.7 million quality-controlled, surface ocean fCO2 (fugacity of carbon dioxide) observations from 1957 to 2019 for the global oceans and coastal seas. Calibrated sensor data are also available. Automation allows annual, public releases. SOCAT data is discoverable, accessible and citable. SOCAT enables quantification of the ocean carbon sink and ocean acidification and evaluation of ocean biogeochemical models. SOCAT represents a milestone in biogeochemical and climate research and in informing policy. This publication contains the individual cruise files that are new or updated from SOCATv6, with cruise QC flags A-E and all fCO2 WOCE flags. The synthesis file hosted in NOAA NCEI (see other version) contains A-D cruises and WOCE flag 2 (good) data. To download the SOCATv2019 data product in other formats or subsets, please go to www.socat.info.
    Keywords: SOCAT; SOCATv2019; Surface Ocean CO2 Atlas Project
    Type: Dataset
    Format: application/zip, 531 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 10
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    Hydrochemistry of water samples during SONNE cruise SO218 (2015)
    PANGAEA
    Details
    Publication Date: 2024-05-22
    Keywords: Bottle number; CTD/Rosette; CTD-RO; Date/Time of event; DEPTH, water; Event label; Freon-12 (dichlorodifluoromethane); Latitude of event; Longitude of event; Nitrate; Nitrite; Oxygen; Phosphate; Pressure, water; Salinity; Sample code/label; Silicate; SO218; SO218_CTD1; SO218_CTD10; SO218_CTD11; SO218_CTD12; SO218_CTD13; SO218_CTD14; SO218_CTD15; SO218_CTD16; SO218_CTD17; SO218_CTD18; SO218_CTD19; SO218_CTD2; SO218_CTD20; SO218_CTD21; SO218_CTD22; SO218_CTD24; SO218_CTD25; SO218_CTD26; SO218_CTD27; SO218_CTD28; SO218_CTD29; SO218_CTD3; SO218_CTD30; SO218_CTD31; SO218_CTD32; SO218_CTD33; SO218_CTD34; SO218_CTD35; SO218_CTD4; SO218_CTD5; SO218_CTD6; SO218_CTD8; SO218_CTD9; Sonne; SONNE-SHIVA; Sulfur hexafluoride, SF6; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 5669 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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