The ocean-atmosphere interface is a key contributor to global atmospheric chemistry and dynamics. Whether over remote waters or along densely populated coastlines, marine ecosystems and their associated atmospheric emissions are major contributors to key trace gas species, and their accurate representation in chemical transport models is fundamental to the simulation of key climate and air quality processes. Recent advances in our understanding of chemistry associated with dimethyl sulfide (DMS), for example, represent a significant step forward in the modeled representation of DMS oxidation processes and products, with implications for cloud and particle formation over the open ocean. Meanwhile, the unique urban coastal atmosphere represents a global nexus of marine, terrestrial, and anthropogenic influences, all coupled together within dynamics driven by the land/ocean interface itself. Along these edges, human and natural systems contribute to a diverse and distinct array of chemical constituents, influencing atmospheric composition near and far. Shallow coastal waters, especially prone to microbial activity and associated emissions, are often disproportionately impactful contributors to global budgets of volatile organic compounds. Here we outline recent and planned advances in the modeled marine atmosphere at both global and regional scales, including the implementation and application of updated DMS chemistry within a global chemical transport model, as well as an exploration of unique emissions and chemistry in the urban coastal regime.

From open ocean to urban coastline: Advances in the modeled marine atmosphere across scales and regimes

Where thousands of chemistry professionals meet to share ideas and advance scientific and technical knowledge. Spring 2023 abstracts, posters, and presentations will launch at the end of March.

ACS Spring 2023

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.