Dimethyl sulfide (DMS) climatologies, fluxes, and trends – Part 2: Sea–air fluxes

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

doi:https://doi.org/10.5194/bg-21-4453-2024

Articles | Volume 21, issue 19

https://doi.org/10.5194/bg-21-4453-2024

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

https://doi.org/10.5194/bg-21-4453-2024

© 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 2: Sea–air fluxes

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

Supplement

https://doi.org/10.5194/bg-21-4453-2024-supplement

Data sets

Objective analyses of sea-surface temperature and marine meteorological variables for the 20th century using ICOADS and the Kobe Collection (data available at: https://psl.noaa.gov/data/gridded/data.cobe.html) M. Ishii et al. https://doi.org/10.1002/joc.1169

NCEP-DOE AMIP-II Reanalysis (R-2) (data available at: https://psl.noaa.gov/data/gridded/data.ncep.reanalysis2.html) M. Kanamitsu et al. https://doi.org/10.1175/BAMS-83-11-1631

ERA5 monthly averaged data on single levels from 1940 to present H. Hersbach et al. https://doi.org/10.24381/cds.f17050d7

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 emissions and quantification of their impacts have large uncertainties, but a detailed study on the range of emissions and drivers of their uncertainty is missing to date. The emissions are calculated from the seawater DMS concentrations and a flux parameterization. Here we quantify the differences in the effect of flux parameterizations used in models.