Articles | Volume 18, issue 2
Clim. Past, 18, 273–292, 2022
https://doi.org/10.5194/cp-18-273-2022
Clim. Past, 18, 273–292, 2022
https://doi.org/10.5194/cp-18-273-2022
Research article
11 Feb 2022
Research article | 11 Feb 2022

Local oceanic CO2 outgassing triggered by terrestrial carbon fluxes during deglacial flooding

Thomas Extier et al.

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Short summary
The role of land–sea fluxes during deglacial flooding in ocean biogeochemistry and CO2 exchange remains poorly constrained due to the lack of climate models that consider such fluxes. We implement the terrestrial organic matter fluxes into the ocean at a transiently changing land–sea interface in MPI-ESM and investigate their effect during the last deglaciation. Most of the terrestrial carbon goes to the ocean during flooding events of Meltwater Pulse 1a, which leads to regional CO2 outgassing.