Climate–carbon cycle feedback analysis: results from the C4MIP model intercomparison

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Climate–carbon cycle feedback analysis: results from the C4MIP model intercomparison

Show simple item record Friedlingstein, P. en_GB Cox, Peter M. en_GB Betts, R. A. en_GB Bopp, L. en_GB Von Bloh, W. en_GB Brovkin, V. en_GB Cadule, P. en_GB Doney, S. en_GB Eby, M. en_GB Fung, I. en_GB Bala, G. en_GB John, J. en_GB Jones, Chris D. en_GB Joos, F. en_GB Kato, T. en_GB Kawamiya, M. en_GB Knorr, W. en_GB Lindsay, K. en_GB Matthews, H. D. en_GB Raddatz, T. en_GB Rayner, P. en_GB Reick, C. en_GB Roeckner, E. en_GB Schnitzler, K.-G. en_GB Schnur, R. en_GB Strassmann, K. en_GB Weaver, A. J. en_GB Yoshikawa, C. en_GB Zeng, N. en_GB 2009-05-21T15:41:21Z en_GB 2011-01-25T10:33:35Z en_US 2013-03-20T12:26:56Z 2006 en_GB
dc.description.abstract Eleven coupled climate-carbon cycle models used a common protocol to study the coupling between climate change and the carbon cycle. The models were forced by historical emissions and the Intergovernmental Panel on Climate Change (IPCC) Special Report on Emissions Scenarios (SRES) A2 anthropogenic emissions of CO2 for the 1850-2100 time period. For each model, two simulations were performed in order to isolate the impact of climate change on the land and ocean carbon cycle, and therefore the climate feedback on the atmospheric CO2 concentration growth rate. There was unanimous agreement among the models that future climate change will reduce the efficiency of the earth system to absorb the anthropogenic carbon perturbation. A larger fraction of anthropogenic CO2 will stay airborne if climate change is accounted for. By the end of the twenty-first century, this additional CO2 varied between 20 and 200 ppm for the two extreme models, the majority of the models lying between 50 and 100 ppm. The higher CO2 levels led to an additional climate warming ranging between 0.1° and 1.5°C. All models simulated a negative sensitivity for both the land and the ocean carbon cycle to future climate. However, there was still a large uncertainty on the magnitude of these sensitivities. Eight models attributed most of the changes to the land, while three attributed it to the ocean. Also, a majority of the models located the reduction of land carbon uptake in the Tropics. However, the attribution of the land sensitivity to changes in net primary productivity versus changes in respiration is still subject to debate; no consensus emerged among the models. en_GB
dc.identifier.citation 19 (14), pp. 3337–3353 en_GB
dc.identifier.doi 10.1175/JCLI3800.1 en_GB
dc.identifier.uri en_GB
dc.language.iso en en_GB
dc.publisher American Meteorological Society en_GB
dc.relation.url en_GB
dc.title Climate–carbon cycle feedback analysis: results from the C4MIP model intercomparison en_GB
dc.type Article en_GB 2009-05-21T15:41:21Z en_GB 2011-01-25T10:33:35Z en_US 2013-03-20T12:26:56Z
dc.identifier.issn 0894-8755 en_GB
dc.identifier.issn 1520-0442 en_GB
dc.description Permission to place copies of these works on this server has been provided by the American Meteorological Society (AMS). The AMS does not guarantee that the copies provided here are accurate copies of the published work. © Copyright 2006 American Meteorological Society (AMS). Permission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act or that satisfies the conditions specified in Section 108 of the U.S. Copyright Act (17 USC §108, as revised by P.L. 94-553) does not require the AMS’s permission. Republication, systematic reproduction, posting in electronic form on servers, or other uses of this material, except as exempted by the above statement, requires written permission or a license from the AMS. Additional details are provided in the AMS Copyright Policy, available on the AMS Web site located at ( or from the AMS at 617-227-2425 or en_GB
dc.identifier.journal Journal of Climate en_GB

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