The influence of dissolved organic matter on the marine production of carbonyl sulfide (OCS) and carbon disulfide (CS2) in the Peruvian upwelling

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 unce...

Full description

Bibliographic Details
Main Authors:	S. T. Lennartz, M. von Hobe, D. Booge, H. C. Bittig, T. Fischer, R. Gonçalves-Araujo, K. B. Ksionzek, B. P. Koch, A. Bracher, R. Röttgers, B. Quack, C. A. Marandino
Format:	Article
Language:	English
Published:	Copernicus Publications 2019-08-01
Series:	Ocean Science
Online Access:	https://www.ocean-sci.net/15/1071/2019/os-15-1071-2019.pdf

id	doaj-e179a6f5560a4018b068b023c66cb6b3
record_format	Article
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	S. T. Lennartz S. T. Lennartz M. von Hobe D. Booge H. C. Bittig T. Fischer R. Gonçalves-Araujo R. Gonçalves-Araujo K. B. Ksionzek K. B. Ksionzek B. P. Koch B. P. Koch B. P. Koch A. Bracher A. Bracher R. Röttgers B. Quack C. A. Marandino
spellingShingle	S. T. Lennartz S. T. Lennartz M. von Hobe D. Booge H. C. Bittig T. Fischer R. Gonçalves-Araujo R. Gonçalves-Araujo K. B. Ksionzek K. B. Ksionzek B. P. Koch B. P. Koch B. P. Koch A. Bracher A. Bracher R. Röttgers B. Quack C. A. Marandino The influence of dissolved organic matter on the marine production of carbonyl sulfide (OCS) and carbon disulfide (CS<sub>2</sub>) in the Peruvian upwelling Ocean Science
author_facet	S. T. Lennartz S. T. Lennartz M. von Hobe D. Booge H. C. Bittig T. Fischer R. Gonçalves-Araujo R. Gonçalves-Araujo K. B. Ksionzek K. B. Ksionzek B. P. Koch B. P. Koch B. P. Koch A. Bracher A. Bracher R. Röttgers B. Quack C. A. Marandino
author_sort	S. T. Lennartz
title	The influence of dissolved organic matter on the marine production of carbonyl sulfide (OCS) and carbon disulfide (CS<sub>2</sub>) in the Peruvian upwelling
title_short	The influence of dissolved organic matter on the marine production of carbonyl sulfide (OCS) and carbon disulfide (CS<sub>2</sub>) in the Peruvian upwelling
title_full	The influence of dissolved organic matter on the marine production of carbonyl sulfide (OCS) and carbon disulfide (CS<sub>2</sub>) in the Peruvian upwelling
title_fullStr	The influence of dissolved organic matter on the marine production of carbonyl sulfide (OCS) and carbon disulfide (CS<sub>2</sub>) in the Peruvian upwelling
title_full_unstemmed	The influence of dissolved organic matter on the marine production of carbonyl sulfide (OCS) and carbon disulfide (CS<sub>2</sub>) in the Peruvian upwelling
title_sort	influence of dissolved organic matter on the marine production of carbonyl sulfide (ocs) and carbon disulfide (cs<sub>2</sub>) in the peruvian upwelling
publisher	Copernicus Publications
series	Ocean Science
issn	1812-0784 1812-0792
publishDate	2019-08-01
description	<p>Oceanic emissions of the climate-relevant trace gases carbonyl sulfide (OCS) and carbon disulfide (<span class="inline-formula">CS<sub>2</sub></span>) 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 (DOS<span class="inline-formula"><sub>SPE</sub></span>, <span class="inline-formula"><i>n</i>=24</span>, <span class="inline-formula">0.16±0.04</span> <span class="inline-formula">µ</span>mol L<span class="inline-formula"><sup>−1</sup></span>), chromophoric (CDOM, <span class="inline-formula"><i>n</i>=76</span>, <span class="inline-formula">0.152±0.03</span>), and fluorescent dissolved organic matter (FDOM, <span class="inline-formula"><i>n</i>=35</span>), 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 (<span class="inline-formula">29.8±19.8</span> pmol L<span class="inline-formula"><sup>−1</sup></span>) and at four profiles ranging down to 136 m. <span class="inline-formula">CS<sub>2</sub></span> was measured at the surface (<span class="inline-formula"><i>n</i>=143</span>, <span class="inline-formula">17.8±9.0</span> pmol L<span class="inline-formula"><sup>−1</sup></span>) 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 <span class="inline-formula">CS<sub>2</sub></span> production coincides with high DOS<span class="inline-formula"><sub>SPE</sub></span> 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<span id="page1072"/> results will help to better predict oceanic concentrations and emissions of both gases on regional and, potentially, global scales.</p>
url	https://www.ocean-sci.net/15/1071/2019/os-15-1071-2019.pdf
work_keys_str_mv	AT stlennartz theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT stlennartz theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT mvonhobe theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT dbooge theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT hcbittig theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT tfischer theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT rgoncalvesaraujo theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT rgoncalvesaraujo theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT kbksionzek theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT kbksionzek theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT bpkoch theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT bpkoch theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT bpkoch theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT abracher theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT abracher theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT rrottgers theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT bquack theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT camarandino theinfluenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT stlennartz influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT stlennartz influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT mvonhobe influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT dbooge influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT hcbittig influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT tfischer influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT rgoncalvesaraujo influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT rgoncalvesaraujo influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT kbksionzek influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT kbksionzek influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT bpkoch influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT bpkoch influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT bpkoch influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT abracher influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT abracher influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT rrottgers influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT bquack influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling AT camarandino influenceofdissolvedorganicmatteronthemarineproductionofcarbonylsulfideocsandcarbondisulfidecssub2subintheperuvianupwelling
_version_	1724881570735587328
spelling	doaj-e179a6f5560a4018b068b023c66cb6b32020-11-25T02:18:31ZengCopernicus PublicationsOcean Science1812-07841812-07922019-08-01151071109010.5194/os-15-1071-2019The influence of dissolved organic matter on the marine production of carbonyl sulfide (OCS) and carbon disulfide (CS<sub>2</sub>) in the Peruvian upwellingS. T. Lennartz0S. T. Lennartz1M. von Hobe2D. Booge3H. C. Bittig4T. Fischer5R. Gonçalves-Araujo6R. Gonçalves-Araujo7K. B. Ksionzek8K. B. Ksionzek9B. P. Koch10B. P. Koch11B. P. Koch12A. Bracher13A. Bracher14R. Röttgers15B. Quack16C. A. Marandino17GEOMAR Helmholtz Centre for Ocean Research Kiel, Marine Biogeochemistry, Düsternbrooker Weg 20, 24105 Kiel, Germanynow at: Institute for Chemistry and Biology of the Marine Environment, University of Oldenburg, Oldenburg, GermanyForschungszentrum Jülich GmbH, Institute of Energy and Climate Research (IEK-7), Wilhelm-Johnen-Strasse, 52425 Jülich, GermanyGEOMAR Helmholtz Centre for Ocean Research Kiel, Marine Biogeochemistry, Düsternbrooker Weg 20, 24105 Kiel, GermanyLeibniz Institute for Baltic Sea Research Warnemünde, Department of Physical Oceanography and Instrumentation, Seestraße 15, 18119 Rostock, GermanyGEOMAR Helmholtz Centre for Ocean Research Kiel, Marine Biogeochemistry, Düsternbrooker Weg 20, 24105 Kiel, GermanyAarhus University, Department of Bioscience, Frederiksborgvej 399, 4000 Roskilde, DenmarkAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Department of Climate Sciences, Physical Oceanography of the Polar Seas, Klußmannstr. 3d, 27570 Bremerhaven, GermanyAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Department of Biosciences, Ecological Chemistry, Am Handelshafen 12, 27570 Bremerhaven, GermanyMARUM Center for Marine Environmental Sciences, Biogeochemistry, Leobener Straße, 28359 Bremen, GermanyAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Department of Biosciences, Ecological Chemistry, Am Handelshafen 12, 27570 Bremerhaven, GermanyMARUM Center for Marine Environmental Sciences, Biogeochemistry, Leobener Straße, 28359 Bremen, GermanyUniversity of Applied Sciences, An der Karlstadt, 27568 Bremerhaven, GermanyInstitute of Environmental Physics, University of Bremen, 28334 Bremen, GermanyAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Department of Climate Sciences, Physical Oceanography of the Polar Seas, Klußmannstr. 3d, 27570 Bremerhaven, GermanyHelmholtz-Zentrum Geesthacht, 21502 Geesthacht, GermanyGEOMAR Helmholtz Centre for Ocean Research Kiel, Marine Biogeochemistry, Düsternbrooker Weg 20, 24105 Kiel, GermanyGEOMAR Helmholtz Centre for Ocean Research Kiel, Marine Biogeochemistry, Düsternbrooker Weg 20, 24105 Kiel, Germany<p>Oceanic emissions of the climate-relevant trace gases carbonyl sulfide (OCS) and carbon disulfide (<span class="inline-formula">CS<sub>2</sub></span>) 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 (DOS<span class="inline-formula"><sub>SPE</sub></span>, <span class="inline-formula"><i>n</i>=24</span>, <span class="inline-formula">0.16±0.04</span> <span class="inline-formula">µ</span>mol L<span class="inline-formula"><sup>−1</sup></span>), chromophoric (CDOM, <span class="inline-formula"><i>n</i>=76</span>, <span class="inline-formula">0.152±0.03</span>), and fluorescent dissolved organic matter (FDOM, <span class="inline-formula"><i>n</i>=35</span>), 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 (<span class="inline-formula">29.8±19.8</span> pmol L<span class="inline-formula"><sup>−1</sup></span>) and at four profiles ranging down to 136 m. <span class="inline-formula">CS<sub>2</sub></span> was measured at the surface (<span class="inline-formula"><i>n</i>=143</span>, <span class="inline-formula">17.8±9.0</span> pmol L<span class="inline-formula"><sup>−1</sup></span>) 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 <span class="inline-formula">CS<sub>2</sub></span> production coincides with high DOS<span class="inline-formula"><sub>SPE</sub></span> 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<span id="page1072"/> results will help to better predict oceanic concentrations and emissions of both gases on regional and, potentially, global scales.</p>https://www.ocean-sci.net/15/1071/2019/os-15-1071-2019.pdf

The influence of dissolved organic matter on the marine production of carbonyl sulfide (OCS) and carbon disulfide (CS<sub>2</sub>) in the Peruvian upwelling

Similar Items