The sensitivity of Southern Ocean atmospheric dimethyl sulfide (DMS) to modeled oceanic DMS concentrations and emissions

Bhatti, Yusuf A.; Revell, Laura E.; Schuddeboom, Alex J.; McDonald, Adrian J.; Archibald, Alex T.; Williams, Jonny; Venugopal, Abhijith U.; Hardacre, Catherine; Behrens, Erik

doi:https://doi.org/10.5194/acp-23-15181-2023

Articles | Volume 23, issue 24

https://doi.org/10.5194/acp-23-15181-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-23-15181-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 24

Research article

|

14 Dec 2023

Research article |

| 14 Dec 2023

The sensitivity of Southern Ocean atmospheric dimethyl sulfide (DMS) to modeled oceanic DMS concentrations and emissions

Yusuf A. Bhatti, Laura E. Revell, Alex J. Schuddeboom, Adrian J. McDonald, Alex T. Archibald, Jonny Williams, Abhijith U. Venugopal, Catherine Hardacre, and Erik Behrens

Supplement

https://doi.org/10.5194/acp-23-15181-2023-supplement

Data sets

Cruise data inventory from the R/V Tangaroa 61TG_3052 cruise in the Southern Ocean during 1999 (SOIREE project) P. W. Boyd http://lod.bco-dmo.org/id/dataset/3212

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Short summary

Aerosols are a large source of uncertainty over the Southern Ocean. A dominant source of sulfate aerosol in this region is dimethyl sulfide (DMS), which is poorly simulated by climate models. We show the sensitivity of simulated atmospheric DMS to the choice of oceanic DMS data set and emission scheme. We show that oceanic DMS has twice the influence on atmospheric DMS than the emission scheme. Simulating DMS more accurately in climate models will help to constrain aerosol uncertainty.