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Peer-reviewed

Carbon–concentration and carbon–climate feedbacks in CMIP6 models and their comparison to CMIP5 models

Vivek K. Arora, Anna Katavouta, Richard G. Williams, Chris Jones, Victor Brovkin, Pierre Friedlingstein, Jörg Schwinger, Laurent Bopp, Oliviér Boucher, Patricia Cadule, Matthew A. Chamberlain, James R. Christian, Christine Delire, Rosie A. Fisher, Tomohiro Hajima, Tatiana Ilyina, Émilie Joetzjer, Michio Kawamiya, Charles D. Koven, John P. Krasting, R. M. Law, David M. Lawrence, Andrew Lenton, Keith Lindsay, Julia Pongratz, Thomas Raddatz, Roland Séférian, Kaoru Tachiiri, Jerry Tjiputra, Andy Wiltshire, Tongwen Wu, Tilo Ziehn

Biogeosciences · 2020

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Summary

Abstract. Results from the fully and biogeochemically coupled simulations in which CO2 increases at a rate of 1 % yr−1 (1pctCO2) from its preindustrial value are analyzed to quantify the magnitude of carbon–concentration and carbon–climate feedback parameters which measure the response of ocean and terrestrial carbon pools to changes in atmospheric CO2 concentration and the resulting change in global climate, respectively. The results are based on 11 comprehensive Earth system models from the most recent (sixth) Coupled Model Intercomparison Project (CMIP6) and compared with eight models from the fifth CMIP (CMIP5). The strength of the carbon–concentration feedback is of comparable magnitudes over land (mean ± standard deviation = 0.97 ± 0.40 PgC ppm−1) and ocean (0.79 ± 0.07 PgC ppm−1), w

Source type
Peer-reviewed study
DOI
10.5194/bg-17-4173-2020
Catalogue ID
SNmokym72u-dkjvng
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