Dimethyl sulfide (DMS) climatologies, fluxes, and trends – Part 1: Differences between seawater DMS estimations

Joge, Sankirna D.; Mahajan, Anoop S.; Hulswar, Shrivardhan; Marandino, Christa A.; Galí, Martí; Bell, Thomas G.; Simó, Rafel

doi:https://doi.org/10.5194/bg-21-4439-2024

Articles | Volume 21, issue 19

https://doi.org/10.5194/bg-21-4439-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-21-4439-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 19

Research article

|

14 Oct 2024

Research article |

| 14 Oct 2024

Dimethyl sulfide (DMS) climatologies, fluxes, and trends – Part 1: Differences between seawater DMS estimations

Sankirna D. Joge, Anoop S. Mahajan, Shrivardhan Hulswar, Christa A. Marandino, Martí Galí, Thomas G. Bell, and Rafel Simó

Supplement

https://doi.org/10.5194/bg-21-4439-2024-supplement

Data sets

World Ocean Atlas 2018, Dissolved Inorganic Nutrients (phosphate, nitrate and nitrate+nitrite, silicate). H. E. Garcia et al. https://www.ncei.noaa.gov/access/world-ocean-atlas-2018/

A global monthly isopycnal upper‐ocean climatology with mixed layers (https://www.pmel.noaa.gov/mimoc/) S. Schmidtko et al. https://doi.org/10.1002/jgrc.20122

OrbView-2 SeaWiFS Global Mapped Chlorophyll (CHL) Data NASA Ocean Biology Processing Group https://doi.org/10.5067/ORBVIEW-2/SEAWIFS/L3M/CHL/2022

Third Revision of the Global Surface Seawater Dimethyl Sulfide Climatology (DMS-Rev3) A. Mahajan https://doi.org/10.17632/HYN62SPNY2.2

Global ocean dimethyl sulfide climatology estimated from observations and an artificial neural network W. L. Wang et al. https://doi.org/10.5281/ZENODO.3833233

DMS-SAT_GLOBAL_MONTHLY_DMS_DMSPt_CLIM_v1.0.0 (1.0.0) M. G. Tapias https://doi.org/10.5281/ZENODO.2558511

Short summary

Dimethyl sulfide (DMS) is the largest natural source of sulfur in the atmosphere and leads to the formation of cloud condensation nuclei. DMS emission and quantification of its impacts have large uncertainties, but a detailed study on the emissions and drivers of their uncertainty is missing to date. The emissions are usually calculated from the seawater DMS concentrations and a flux parameterization. Here we quantify the differences in DMS seawater products, which can affect DMS fluxes.