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


Autoria(s): Ksionzek, Kerstin B; Lechtenfeld, Oliver J; McCallister, S Leigh; Schmitt-Kopplin, Philippe; Geuer, Jana; Geibert, Walter; Koch, Boris P
Cobertura

MEDIAN LATITUDE: -12.789375 * MEDIAN LONGITUDE: -6.508279 * SOUTH-BOUND LATITUDE: -70.492300 * WEST-BOUND LONGITUDE: -20.951300 * NORTH-BOUND LATITUDE: 50.190100 * EAST-BOUND LONGITUDE: 17.892500 * DATE/TIME START: 2008-11-03T13:12:00 * DATE/TIME END: 2008-12-22T10:27:00

Data(s)

04/03/2016

Resumo

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.

Formato

application/zip, 3 datasets

Identificador

https://doi.pangaea.de/10.1594/PANGAEA.858568

doi:10.1594/PANGAEA.858568

Idioma(s)

en

Publicador

PANGAEA

Relação

Ksionzek, Kerstin B; Lechtenfeld, Oliver J; McCallister, S Leigh; Schmitt-Kopplin, Philippe; Geuer, Jana; Geibert, Walter; Koch, Boris P (2016): Decrypting the petagram inventory of marine dissolved organic sulfur. in preparation

Direitos

Access constraints: access rights needed

Palavras-Chave #Age, 14C; Age, dated; Age dated; Area; Area/locality; AWI_EcolChem; Carbon, organic, dissolved; Carbon, organic, dissolved, extracted; Center for Marine Environmental Sciences; Date/Time; DATE/TIME; DBE; DEPTH, water; Depth water; DOC; DOC extr; DON extr; DOS/DON; DOS extr; Double bound equivalent; EA = East Atlantic, SO = Southern Ocean; Ecological Chemistry @ AWI; Event; Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS); H/C; Hydrogen/Carbon ratio; Latitude; LATITUDE; Longitude; LONGITUDE; m/z; MARUM; Mass of molecular formulas; Met; Methionine; Mol% methionine-S of SPE-DOS; N/C; Nitrogen, organic, dissolved, extracted; Nitrogen/Carbon ratio; O/C; Oxygen/Carbon ratio; S/C; Solid phase extraction (SPE) with PPL sorbent (after Flerus et al. 2012); SPE-DOS / SPE-DON; Station; Sulfur, organic, dissolved, extracted; Sulfur, organic, dissolved/Nitrogen, organic, dissolved ratio; Sulfur/Carbon ratio; weighted average
Tipo

Dataset

Fonte

Supplement to: Ksionzek, Kerstin B; Lechtenfeld, Oliver J; McCallister, S Leigh; Schmitt-Kopplin, Philippe; Geuer, Jana; Geibert, Walter; Koch, Boris P (2016): Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory. Science, 8 pp, doi:10.1126/science.aaf7796