000862007 001__ 862007 000862007 005__ 20240712100914.0 000862007 0247_ $$2doi$$a10.5194/os-2019-1 000862007 0247_ $$2ISSN$$a1812-0806 000862007 0247_ $$2ISSN$$a1812-0822 000862007 0247_ $$2Handle$$a2128/22016 000862007 0247_ $$2altmetric$$aaltmetric:56225736 000862007 037__ $$aFZJ-2019-02381 000862007 082__ $$a550 000862007 1001_ $$0P:(DE-HGF)0$$aLennartz, Sinikka T.$$b0$$eCorresponding author 000862007 245__ $$aThe influence of dissolved organic matter on the marine production of carbonyl sulfide (OCS) and carbon disulfide (CS<sub>2</sub>) in the Eastern Tropical South Pacific 000862007 260__ $$aKatlenburg-Lindau$$bEGU$$c2019 000862007 3367_ $$2DRIVER$$aarticle 000862007 3367_ $$2DataCite$$aOutput Types/Journal article 000862007 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1554205013_31144 000862007 3367_ $$2BibTeX$$aARTICLE 000862007 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000862007 3367_ $$00$$2EndNote$$aJournal Article 000862007 520__ $$aOceanic 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), chromophoric (CDOM) and fluorescent dissolved organic matter (FDOM) from the Eastern Tropical South Pacific (ETSP). These observations are 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. The lack of correlation between OCS production and DOSSPE may be explained by the active cycling of sulfur between OCS and dissolved inorganic sulfide via OCS photoproduction and hydrolysis. In addition, the only existing parameterization for OCS dark production is validated and updated with new rates from the ETSP and the Indian Ocean. Our results will help to predict oceanic concentrations and emissions of both gases on regional and, potentially, global scales. 000862007 536__ $$0G:(DE-HGF)POF3-244$$a244 - Composition and dynamics of the upper troposphere and middle atmosphere (POF3-244)$$cPOF3-244$$fPOF III$$x0 000862007 588__ $$aDataset connected to CrossRef 000862007 7001_ $$0P:(DE-Juel1)129170$$avon Hobe, Marc$$b1 000862007 7001_ $$0P:(DE-HGF)0$$aBooge, Dennis$$b2 000862007 7001_ $$00000-0002-8621-3095$$aBittig, Henry$$b3 000862007 7001_ $$0P:(DE-HGF)0$$aFischer, Tim$$b4 000862007 7001_ $$0P:(DE-HGF)0$$aGonçalves-Araujo, Rafael$$b5 000862007 7001_ $$0P:(DE-HGF)0$$aKsionzek, Kerstin B.$$b6 000862007 7001_ $$00000-0002-8453-731X$$aKoch, Boris P.$$b7 000862007 7001_ $$00000-0003-3025-5517$$aBracher, Astrid$$b8 000862007 7001_ $$0P:(DE-HGF)0$$aRöttgers, Rüdiger$$b9 000862007 7001_ $$0P:(DE-HGF)0$$aQuack, Birgit$$b10 000862007 7001_ $$0P:(DE-HGF)0$$aMarandino, Christa A.$$b11 000862007 773__ $$0PERI:(DE-600)2169109-5$$a10.5194/os-2019-1$$gp. 1 - 32$$n $$p1 - 32$$tOcean science discussions$$v $$x1812-0822$$y2019 000862007 8564_ $$uhttps://juser.fz-juelich.de/record/862007/files/os-2019-1.pdf$$yOpenAccess 000862007 8564_ $$uhttps://juser.fz-juelich.de/record/862007/files/os-2019-1.pdf?subformat=pdfa$$xpdfa$$yOpenAccess 000862007 909CO $$ooai:juser.fz-juelich.de:862007$$pdnbdelivery$$pVDB$$pVDB:Earth_Environment$$pdriver$$popen_access$$popenaire 000862007 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)129170$$aForschungszentrum Jülich$$b1$$kFZJ 000862007 9131_ $$0G:(DE-HGF)POF3-244$$1G:(DE-HGF)POF3-240$$2G:(DE-HGF)POF3-200$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bErde und Umwelt$$lAtmosphäre und Klima$$vComposition and dynamics of the upper troposphere and middle atmosphere$$x0 000862007 9141_ $$y2019 000862007 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS 000862007 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess 000862007 915__ $$0LIC:(DE-HGF)CCBY4$$2HGFVOC$$aCreative Commons Attribution CC BY 4.0 000862007 9201_ $$0I:(DE-Juel1)IEK-7-20101013$$kIEK-7$$lStratosphäre$$x0 000862007 9801_ $$aFullTexts 000862007 980__ $$ajournal 000862007 980__ $$aVDB 000862007 980__ $$aUNRESTRICTED 000862007 980__ $$aI:(DE-Juel1)IEK-7-20101013 000862007 981__ $$aI:(DE-Juel1)ICE-4-20101013