Oceanic DMS strongly affects aerosols and clouds in the Arctic

Oceanic DMS strongly affects aerosols and clouds in the Arctic | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 8 August 2025 V1 Latest version Share on Oceanic DMS strongly affects aerosols and clouds in the Arctic Authors : Rémy Lapere 0000-0001-8311-0042 [email protected] , Antoine Haddon , Ruth Price 0000-0003-1981-9860 , Louis Marelle 0000-0003-4925-0046 , Adam Hugh Monahan 0000-0002-5000-9826 , Nadja S. Steiner 0000-0001-7456-3437 , Jean-Christophe Raut 0000-0002-3552-2437 , Lucas Bastien 0009-0002-1834-1009 , and Jennie L Thomas 0000-0003-2243-8137 Authors Info & Affiliations https://doi.org/10.22541/au.175466602.22534100/v1 404 views 250 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Arctic aerosol, cloud, and surface radiation budgets are highly sensitive to how dimethylsulfide (DMS) is represented in atmospheric models. We investigate the impact of (1) the gas-phase DMS oxidation mechanism (simple versus complex), (2) the representation of oceanic DMS (global climatology versus detailed Arctic Ocean biogeochemistry simulation), and (3) the parameterization of new particle formation (NPF) from methanesulfonic acid (MSA). We find that the more detailed approach in (1) and (2) improves agreement with observed DMS and SO2 concentrations, and that activating (3) enables the model to capture the observed summertime maximum in aerosol number concentrations. Together, these changes result in large-scale modifications to cloud microphysics and the arctic surface energy budget, with radiative impacts of ±13Wm -2 annually, reaching up to ±50Wm -2 in summertime when combining all the model updates. Supplementary Material File (dms_grl_vsub.pdf) Download 1.86 MB File (suppmatdms_grl_vsub.pdf) Download 7.16 MB Information & Authors Information Version history V1 Version 1 08 August 2025 Copyright This work is licensed under a Creative Commons Attribution 4.0 International License Keywords aerosol arctic atmospheric sciences dms modeling Authors Affiliations Rémy Lapere 0000-0001-8311-0042 [email protected] Laboratoire Atmospheres Milieux Observations Spatiales Site Paris-Jussieu View all articles by this author Antoine Haddon University of Victoria View all articles by this author Ruth Price 0000-0003-1981-9860 L'Institut des Géosciences de l'Environnement (IGE) View all articles by this author Louis Marelle 0000-0003-4925-0046 Laboratoire Atmospheres Milieux Observations Spatiales Site Paris-Jussieu View all articles by this author Adam Hugh Monahan 0000-0002-5000-9826 University of Victoria View all articles by this author Nadja S. Steiner 0000-0001-7456-3437 Fisheries and Ocean Canada View all articles by this author Jean-Christophe Raut 0000-0002-3552-2437 Sorbonne Université View all articles by this author Lucas Bastien 0009-0002-1834-1009 L'Institut des Géosciences de l'Environnement (IGE) View all articles by this author Jennie L Thomas 0000-0003-2243-8137 L'Institut des Géosciences de l'Environnement (IGE) View all articles by this author Funding Information Horizon 2020 Framework Programme 101003826 Agence Nationale de la Recherche ANR-22-CEA01-0009-02 HORIZON EUROPE Framework Programme 101137680 Metrics & Citations Metrics Article Usage 404 views 250 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Rémy Lapere, Antoine Haddon, Ruth Price, et al. Oceanic DMS strongly affects aerosols and clouds in the Arctic. Authorea . 08 August 2025. DOI: https://doi.org/10.22541/au.175466602.22534100/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . Format Please select one from the list RIS (ProCite, Reference Manager) EndNote BibTex Medlars RefWorks Direct import Tips for downloading citations document.getElementById('citMgrHelpLink').addEventListener('click', function() { popupHelp(this.href); return false; }); $(".js__slcInclude").on("change", function(e){ if ($(this).val() == 'refworks') $('#direct').prop("checked", false); $('#direct').prop("disabled", ($(this).val() == 'refworks')); }); View Options View options PDF View PDF Figures Tables Media Share Share Share article link Copy Link Copied! Copying failed. 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