FN Archimer Export Format PT J TI Contribution of Sea-State Dependent Bubbles to Air-Sea Carbon Dioxide Fluxes BT AF REICHIL, B. G. DEIKE, L. AS 1:1,2;2:3,4; FF 1:;2:; C1 Princeton Univ, Program Atmospner & Ocean Sci, Princeton, NJ 08544 USA. NOAA, Geophys Fluid Dynam Lab, Princeton, NJ 08540 USA. Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA. Princeton Univ, Princeton Environm Inst, Princeton, NJ 08544 USA. C2 UNIV PRINCETON, USA NOAA, USA UNIV PRINCETON, USA UNIV PRINCETON, USA IF 4.497 TC 3 UR https://archimer.ifremer.fr/doc/00676/78838/81092.pdf LA English DT Article CR OISO - OCÉAN INDIEN SERVICE D'OBSERVATION AB Breaking surface ocean waves produce bubbles that are important for air-sea gas exchanges, particularly during high winds. In this study we estimate air-sea CO2 fluxes globally using a new approach that considers the surface wave contribution to gas fluxes. We estimate that 40% of the net air-sea CO2 flux is via bubbles, with annual, seasonal, and regional variability. When compared to traditional gas-flux parameterization methods that consider the wind speed alone, we find high-frequency (daily to weekly) differences in the predicted gas flux using the sea-state dependent method at spatial scales related to atmospheric weather (10 to 100 km). Seasonal net differences in the air-sea CO2 flux due to the sea-state dependence can exceed 20%, with the largest values associated with North Atlantic and North Pacific winter storms. These results confirm that bubbles are important for global gas-flux dynamics and that sea-state dependent parameterizations may improve performance of global coupled models. PY 2020 PD MAY SO Geophysical Research Letters SN 0094-8276 PU Amer Geophysical Union VL 47 IS 9 UT 000536639500015 DI 10.1029/2020GL087267 ID 78838 ER EF