Ocean surface waves impact on global air-sea CO 2 flux.

ABSTRACT: Ocean surface gravity waves facilitate gas exchanges primarily in two ways: (1) the formation of bubbles during wave breaking increases the surface area available for gas exchange, promoting CO 2 transfer, and (2) wave-current interaction processes alter the sea surface partial pressure of CO 2 and gas solubility, consequently affecting the CO 2 flux. This study tests these influences using a global ocean-ice-biogeochemistry model under preindustrial conditions. The simulation results indicate that both wave-current interaction processes and the sea-state-dependent gas transfer scheme-which explicitly accounts for bubble-mediated gas transfer velocity-influence the air-sea CO 2 flux, with substantial spatial and seasonal variations. In the equatorial region (10 ∘ S-10 ∘ N), both processes

SUBMITTER: Wu L 

PROVIDER: S-EPMC12402038 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature