Dobashi et al. (2026): Air-Sea Gas Exchange in the Coastal Baltic Sea: Implications for Marine Carbon Dioxide Removal
Ryo Dobashi, David T. Ho, Christa A. Marandino and Peter Schlosser, IN: Journal of Geophysical Research: Oceans, https://doi.org/10.1029/2025JC023324
Air-sea gas exchange affects the biogeochemical cycling of trace gases such as CO₂ and dimethyl sulfide (DMS) on a global scale, thereby influencing Earth’s climate. In nearshore regions, differences in wind fetch and surfactants are expected to have an impact on gas transfer velocity (k). Accurate determination of air-sea gas exchange in nearshore regions is crucial for assessing the efficacy of carbon dioxide removal (CDR) techniques, as many CDR methods are expected to be deployed in these regions. In this study, the authors used the ³He/SF₆ dual tracer technique to determine k and investigate factors that control air-sea gas exchange in a nearshore inland sea ecosystem, the coastal Baltic Sea.