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Climate–Carbon CycleFeedback Analysis:Results from theC4MIP ModelIntercomparison Pierre FriedlingsteinPeter M. CoxRichard Betts2006 год

Climate–Carbon Cycle Feedback Analysis: Results from the C4MIP Model Intercomparison
статья из журнала

Полный текстСтраница публикацииПубликация в OpenAlex
Аннотация: 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.
Год издания: 2006
Авторы: Pierre Friedlingstein, Peter M. Cox, Richard Betts, Laurent Bopp, Werner von Bloh, Victor Brovkin, Patricia Cadule, Scott C. Doney, M. Eby, Inez Fung, Govindasamy Bala, Jasmin G. John, Colin Jones, Fortunat Joos, Tomomichi Kato, Michio Kawamiya, Wolfgang Knorr, Keith Lindsay, H. Damon Matthews, Thomas Raddatz, P. J. Rayner, Christian H. Reick, E. Roeckner, K. G. Schnitzler, Reiner Schnur, Kuno Strassmann, Andrew J. Weaver, Chisato Yoshikawa, Ning Zeng
Издательство: American Meteorological Society
Источник: Journal of Climate
Ключевые слова: Atmospheric and Environmental Gas Dynamics, Climate variability and models, Atmospheric Ozone and Climate
Другие ссылки: Journal of Climate (PDF)
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