Articles | Volume 16, issue 2
Clim. Past, 16, 423–451, 2020
https://doi.org/10.5194/cp-16-423-2020
Clim. Past, 16, 423–451, 2020
https://doi.org/10.5194/cp-16-423-2020

Research article 04 Mar 2020

Research article | 04 Mar 2020

Modeling the evolution of pulse-like perturbations in atmospheric carbon and carbon isotopes: the role of weathering–sedimentation imbalances

Aurich Jeltsch-Thömmes and Fortunat Joos

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Subject: Carbon Cycle | Archive: Modelling only | Timescale: Milankovitch
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Perturbations in atmospheric CO2 and in its isotopic composition, e.g., in response to carbon release from the land biosphere or from fossil fuel burning, evolve differently in time. We use an Earth system model of intermediate complexity to show that fluxes to and from the solid Earth play an important role in removing these perturbations from the atmosphere over thousands of years.