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  • 1
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    The influence of dissolved organic matter on the marine production of carbonyl sulfide (OCS) and carbon disulfide (CS2) in the Peruvian upwelling (2019)
    Copernicus Publications (EGU)
    Details
    Publication Date: 2022-04-06
    Description: Oceanic emissions of the climate-relevant trace gases carbonyl sulfide (OCS) and carbon disulfide (CS2) are a major source to their atmospheric budget. Their current and future emission estimates are still uncertain due to incomplete process understanding and therefore inexact quantification across different biogeochemical regimes. Here we present the first concurrent measurements of both gases together with related fractions of the dissolved organic matter (DOM) pool, i.e., solid-phase extractable dissolved organic sulfur (DOSSPE, n=24, 0.16±0.04 µmol L−1), chromophoric (CDOM, n=76, 0.152±0.03), and fluorescent dissolved organic matter (FDOM, n=35), from the Peruvian upwelling region (Guayaquil, Ecuador to Antofagasta, Chile, October 2015). OCS was measured continuously with an equilibrator connected to an off-axis integrated cavity output spectrometer at the surface (29.8±19.8 pmol L−1) and at four profiles ranging down to 136 m. CS2 was measured at the surface (n=143, 17.8±9.0 pmol L−1) and below, ranging down to 1000 m (24 profiles). These observations were used to estimate in situ production rates and identify their drivers. We find different limiting factors of marine photoproduction: while OCS production is limited by the humic-like DOM fraction that can act as a photosensitizer, high CS2 production coincides with high DOSSPE concentration. Quantifying OCS photoproduction using a specific humic-like FDOM component as proxy, together with an updated parameterization for dark production, improves agreement with observations in a 1-D biogeochemical model. Our results will help to better predict oceanic concentrations and emissions of both gases on regional and, potentially, global scales.
    Type: Article , PeerReviewed
    Format: text
    Format: text
    Format: text
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 2
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    Dissolved organic sulfur in solid-phase extracts of water samples obtained during POLARSTERN cruise ANT-XXV (PS73) (2016)
    PANGAEA
    Details
    Publication Date: 2023-03-16
    Keywords: Age, 14C; Age, dated; ANT-XXV/1; ANT-XXV/2; AWI_EcolChem; AWI_MarGeoChem; Canarias Sea; Carbon, organic, dissolved; Carbon, organic, dissolved, extracted; Celtic Sea; Center for Marine Environmental Sciences; CTD/Rosette; CTD-RO; DATE/TIME; DEPTH, water; Ecological Chemistry @ AWI; English Channel; Event label; LATITUDE; LONGITUDE; Marine Geochemistry @ AWI; MARUM; Nitrogen, organic, dissolved, extracted; Polarstern; PS73; PS73/002-1; PS73/004-1; PS73/006-1; PS73/006-3; PS73/008-1; PS73/010-2; PS73/013-1; PS73/015-1; PS73/015-2; PS73/017-2; PS73/019-1; PS73/022-1; PS73/024-1; PS73/026-1; PS73/026-2; PS73/028-1; PS73/030-1; PS73/032-1; PS73/032-4; PS73/034-1; PS73/036-1; PS73/038-1; PS73/038-2; PS73/042-1; PS73/044-1; PS73/047-1; PS73/051-1; PS73/054-1; PS73/056-1; PS73/062-1; PS73/064-1; PS73/069-2; PS73/070-1; PS73/071-1; PS73/072-1; PS73/073-1; PS73/074-1; PS73/S10; PS73/S11; PS73/S13; PS73/S15; PS73/S16; PS73/S17; PS73/S19; PS73/S2; PS73/S21; PS73/S24; PS73/S26; PS73/S29; PS73/S3; PS73/S30; PS73/S32; PS73/S34; PS73/S36; PS73/S38; PS73/S41; PS73/S43; PS73/S44; PS73/S45; PS73/S46; PS73/S47; PS73/S49; PS73/S5; PS73/S50; PS73/S52; PS73/S55; PS73/S57; PS73/S58; PS73/S60; PS73/S66; PS73/S67; PS73/S68; PS73/S69; PS73/S7; PS73/S70; PS73/S71; PS73/SW1; PS73/SW10; PS73/SW11; PS73/SW12; PS73/SW13; PS73/SW14; PS73/SW15; PS73/SW16; PS73/SW17; PS73/SW18; PS73/SW19; PS73/SW2; PS73/SW3; PS73/SW4; PS73/SW5; PS73/SW6; PS73/SW7; PS73/SW8; PS73/SW9; RAMSES; RAMSES hyperspectral radiometer; Solid phase extraction (SPE) with PPL sorbent (after Flerus et al. 2012); South Atlantic Ocean; Station label; Sulfur, organic, dissolved, extracted; Sulfur, organic, dissolved/Nitrogen, organic, dissolved ratio; Surface water sample; SWS; Weddell Sea
    Type: Dataset
    Format: text/tab-separated-values, 1234 data points
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    DATA PANGAEA
  • 3
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    Molecular characterization of sulfur-containing compounds in solid-phase extracts of water samples obtained during POLARSTERN cruise ANT-XXV (PS73) (2016)
    PANGAEA
    Details
    Publication Date: 2023-03-16
    Keywords: ANT-XXV/1; ANT-XXV/2; Area/locality; AWI_EcolChem; AWI_MarGeoChem; Canarias Sea; Celtic Sea; Center for Marine Environmental Sciences; CTD/Rosette; CTD-RO; DATE/TIME; DEPTH, water; Double bond equivalent; Ecological Chemistry @ AWI; English Channel; Event label; Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS); Hydrogen/Carbon ratio; LATITUDE; LONGITUDE; Marine Geochemistry @ AWI; MARUM; Mass of molecular formulas; Nitrogen/Carbon ratio; Oxygen/Carbon ratio; Polarstern; PS73; PS73/002-1; PS73/004-1; PS73/006-1; PS73/006-3; PS73/008-1; PS73/010-2; PS73/013-1; PS73/015-1; PS73/015-2; PS73/017-2; PS73/019-1; PS73/022-1; PS73/024-1; PS73/026-1; PS73/026-2; PS73/028-1; PS73/030-1; PS73/032-1; PS73/032-4; PS73/034-1; PS73/036-1; PS73/038-1; PS73/038-2; PS73/042-1; PS73/044-1; PS73/047-1; PS73/051-1; PS73/054-1; PS73/056-1; PS73/064-1; PS73/069-2; PS73/070-1; PS73/071-1; PS73/072-1; PS73/073-1; PS73/074-1; PS73/S10; PS73/S11; PS73/S13; PS73/S15; PS73/S16; PS73/S17; PS73/S19; PS73/S2; PS73/S21; PS73/S24; PS73/S26; PS73/S29; PS73/S3; PS73/S30; PS73/S32; PS73/S34; PS73/S36; PS73/S38; PS73/S41; PS73/S43; PS73/S44; PS73/S45; PS73/S46; PS73/S47; PS73/S49; PS73/S5; PS73/S52; PS73/S55; PS73/S57; PS73/S58; PS73/S60; PS73/S66; PS73/S67; PS73/S68; PS73/S69; PS73/S7; PS73/S70; PS73/S71; PS73/SW1; PS73/SW10; PS73/SW11; PS73/SW12; PS73/SW13; PS73/SW14; PS73/SW15; PS73/SW16; PS73/SW17; PS73/SW18; PS73/SW19; PS73/SW2; PS73/SW3; PS73/SW4; PS73/SW5; PS73/SW6; PS73/SW7; PS73/SW8; PS73/SW9; RAMSES; RAMSES hyperspectral radiometer; South Atlantic Ocean; Station label; Sulfur/Carbon ratio; Surface water sample; SWS; Weddell Sea
    Type: Dataset
    Format: text/tab-separated-values, 1400 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Methionine-sulfur yield of two depth profiles of solid-phase extractable dissolved organic matter obtained during POLARSTERN cruise ANT-XXV (PS73) (2016)
    PANGAEA
    Details
    Publication Date: 2023-03-16
    Keywords: ANT-XXV/1; ANT-XXV/2; Area/locality; AWI_EcolChem; AWI_MarGeoChem; Canarias Sea; Center for Marine Environmental Sciences; CTD/Rosette; CTD-RO; DATE/TIME; DEPTH, water; Ecological Chemistry @ AWI; Event label; LATITUDE; LONGITUDE; Marine Geochemistry @ AWI; MARUM; Methionine; Polarstern; PS73; PS73/026-1; PS73/026-2; PS73/073-1; Solid phase extraction (SPE) with PPL sorbent (after Flerus et al. 2012); Station label; Sulfur, organic, dissolved, extracted; Weddell Sea
    Type: Dataset
    Format: text/tab-separated-values, 65 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Quantification and molecular characterization of dissolved organic sulfur in water samples obtained during POLARSTERN cruise ANT-XXV (PS73) to the East Atlantic and the Southern Ocean (2016)
    PANGAEA
    In:  Supplement to: Ksionzek, Kerstin B; Lechtenfeld, Oliver J; McCallister, S Leigh; Schmitt-Kopplin, Philippe; Geuer, Jana K; Geibert, Walter; Koch, Boris P (2016): Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory. Science, 354(6311), 456-459, https://doi.org/10.1126/science.aaf7796
    Details
    Publication Date: 2023-03-16
    Description: Although sulfur is an essential element for marine primary production and critical for climate processes, little is known about the oceanic pool of non-volatile dissolved organic sulfur (DOS). We present a basin-scale distribution of solid phase extractable DOS in the East Atlantic Ocean and the Atlantic sector of the Southern Ocean. While molar DOS versus dissolved organic nitrogen (DON) ratios of 0.11 ± 0.024 in Atlantic surface water resembled phytoplankton stoichiometry (S/N ~ 0.08), increasing dissolved organic carbon (DOC) versus DOS ratios and decreasing methionine-S yield demonstrated selective DOS removal and active involvement in marine biogeochemical cycles. Based on stoichiometric estimates, the minimum global inventory of marine DOS is 6.7 Pg S, exceeding all other marine organic sulfur reservoirs by an order of magnitude.
    Keywords: AWI_EcolChem; AWI_MarGeoChem; Center for Marine Environmental Sciences; Ecological Chemistry @ AWI; Marine Geochemistry @ AWI; MARUM
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    Dissolved organic matter and trace metals in solid-phase extracts of water samples from the Elbe-Weser estuary (2018)
    PANGAEA
    In:  Supplement to: Ksionzek, Kerstin B; Zhang, Jing; Ludwichowski, Kai-Uwe; Wilhelms-Dick, Dorothee; Trimborn, Scarlett; Jendrossek, Thomas; Kattner, Gerhard; Koch, Boris P (2018): Stoichiometry, polarity, and organometallics in solid-phase extracted dissolved organic matter of the Elbe-Weser estuary. PLoS ONE, 13(9), e0203260, https://doi.org/10.1371/journal.pone.0203260
    Details
    Publication Date: 2024-01-12
    Description: Water samples were either acidified to pH 2 or processed without acidification (pH 8) prior solid-phase extraction (SPE). SPE was performed in quadruplicates. Thus, the given concentrations and elemental ratios of solid-phase extracts are average values of quadruplicate measurements (+/- standard deviation). Some values for SPE-V and SPE-As were below limit of detection (LOD).
    Keywords: Arsenic, extracted; Arsenic, extracted, standard deviation; BOT; Bottle, unknown; Carbon, organic, dissolved; Carbon, organic, dissolved, extracted; Carbon, organic, dissolved, extracted, standard deviation; Carbon/Arsenic ratio; Carbon/Arsenic ratio, standard deviation; Carbon/Chromium ratio; Carbon/Chromium ratio, standard deviation; Carbon/Cobalt ratio; Carbon/Cobalt ratio, standard deviation; Carbon/Copper ratio; Carbon/Copper ratio, standard deviation; Carbon/Nickel ratio; Carbon/Nickel ratio, standard deviation; Carbon/Nitrogen ratio; Carbon/Nitrogen ratio, standard deviation; Carbon/Phosphorus ratio; Carbon/Phosphorus ratio, standard deviation; Carbon/sulfur ratio; Carbon/sulfur ratio, standard deviation; Carbon/Vanadium ratio; Carbon/Vanadium ratio, standard deviation; Chromium, extracted; Chromium, extracted, standard deviation; Cobalt; Cobalt, extracted; Cobalt, extracted, standard deviation; Copper; Copper, extracted; Copper, extracted, standard deviation; CTD/Rosette; CTD-RO; Date/Time of event; DEPTH, water; E1; Elbe_E1; Elbe Estuary; Event label; HE426; HE426/17-1; HE426/19-1; HE426/30-1; Heincke; ICP-MS, Elemental Scientific, seaFAST; Latitude of event; Longitude of event; Nickel, extracted; Nickel, extracted, standard deviation; Nitrogen, organic, dissolved, extracted; Nitrogen, organic, dissolved, extracted, standard deviation; Nitrogen, total dissolved; North Sea; pH; Phosphorus, organic, dissolved, extracted, standard deviation; Phosphorus, organic, extracted, dissolved; Salinity; Solid phase extraction (SPE); followed by High temperature catalytic oxidation (HTCO); Solid phase extraction (SPE) followed by ICP-MS; Station label; Sulfur, organic, dissolved, extracted; Sulfur, organic, dissolved, extracted, standard deviation; Vanadium, extracted; Vanadium, extracted, standard deviation; W1; W2; Weser_W1; Weser_W2; Weser, Germany, Europe
    Type: Dataset
    Format: text/tab-separated-values, 526 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 7
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    Identification of organic compounds in ocean basement fluids (2017)
    PERGAMON-ELSEVIER SCIENCE LTD
    In:  EPIC3Organic Geochemistry, PERGAMON-ELSEVIER SCIENCE LTD, 113, pp. 124-127, ISSN: 0146-6380
    Details
    Publication Date: 2017-09-17
    Description: We have analyzed the dissolved organic carbon, OC, in ocean basement fluids using Fourier Transform-Ion Cyclotron Resonance-Mass Spectrometry (FT-ICR-MS). The compounds identified at the two sites, near the Juan de Fuca and Mid-Atlantic Ridges (North Pond), differ substantially from each other and from seawater. Compared to Juan de Fuca, North Pond organics had a lower average molecular weight (349 vs. 372 g/mol), 50% more identifiable compounds (2181 vs. 1482), and demonstrably lower average nominal oxidation state of carbon (-0.70 vs. -0.56). The North Pond fluids were also found to have many more Nand S-bearing compounds. Based on our data, the marine subsurface can alter the types of dissolved OC, DOC, compounds in seawater.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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    PAPER (OA)
  • 8
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    Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory (2016)
    In:  EPIC3Science, 354, pp. 456-459
    Details
    Publication Date: 2016-11-16
    Description: Although sulfur is an essential element for marine primary production and critical for climate processes, little is known about the oceanic pool of nonvolatile dissolved organic sulfur (DOS).We present a basin-scale distribution of solid-phase extractable DOS in the East Atlantic Ocean and the Atlantic sector of the Southern Ocean. Although molar DOS versus dissolved organic nitrogen (DON) ratios of 0.11 ± 0.024 in Atlantic surface water resembled phytoplankton stoichiometry (sulfur/nitrogen ~ 0.08), increasing dissolved organic carbon (DOC) versus DOS ratios and decreasing methionine-S yield demonstrated selective DOS removal and active involvement in marine biogeochemical cycles. Based on stoichiometric estimates, the minimum global inventory of marine DOS is 6.7 petagrams of sulfur, exceeding all other marine organic sulfur reservoirs by an order of magnitude.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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    PAPER (OA)
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