Articles | Volume 19, issue 24
Atmos. Chem. Phys., 19, 15447–15466, 2019
Atmos. Chem. Phys., 19, 15447–15466, 2019

Research article 17 Dec 2019

Research article | 17 Dec 2019

The sensitivity of Southern Ocean aerosols and cloud microphysics to sea spray and sulfate aerosol production in the HadGEM3-GA7.1 chemistry–climate model

Laura E. Revell et al.


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Laura Revell on behalf of the Authors (04 Nov 2019)  Author's response    Manuscript
ED: Publish as is (06 Nov 2019) by Kostas Tsigaridis
Short summary
Aerosols over the Southern Ocean consist primarily of sea salt and sulfate, yet are seasonally biased in our model. We test three sulfate chemistry schemes to investigate DMS oxidation, which forms sulfate aerosol. Simulated cloud droplet number concentrations improve using more complex sulfate chemistry. We also show that a new sea spray aerosol source function, developed from measurements made on a recent Southern Ocean research voyage, improves the model's simulation of aerosol optical depth.
Final-revised paper