| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Evaluation of CNRM Earth System Model, CNRM-ESM2-1: Role of Earth System Processes in Present-Day and Future Climate
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| Autores: |
Seferian, Roland
Nabat, Pierre
Michou, Martine
Saint-martin, David
Voldoire, Aurore
Colin, Jeanne
Decharme, Bertrand
Delire, Christine
Berthet, Sarah
Chevallier, Matthieu
Senesi, Stephane
Franchisteguy, Laurent
Vial, Jessica
Mallet, Marc
Joetzjer, Emilie
Geoffroy, Olivier
Gueremy, Jean-francois
Moine, Marie-pierre
Msadek, Rym
Ribes, Aurelien
Rocher, Matthias
Roehrig, Romain
Salas-y-melia, David
Sanchez, Emilia
Terray, Laurent
Valcke, Sophie
Waldman, Robin
Aumont, Olivier
Bopp, Laurent
Deshayes, Julie
Ethe, Christian
Madec, Gurvan
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| Data: |
2019-12
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| Ano: |
2019
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| Resumo: |
This study introduces CNRM-ESM2-1, the Earth system (ES) model of second generation developed by CNRM-CERFACS for the sixth phase of the Coupled Model Intercomparison Project (CMIP6). CNRM-ESM2-1 offers a higher model complexity than the Atmosphere-Ocean General Circulation Model CNRM-CM6-1 by adding interactive ES components such as carbon cycle, aerosols, and atmospheric chemistry. As both models share the same code, physical parameterizations, and grid resolution, they offer a fully traceable framework to investigate how far the represented ES processes impact the model performance over present-day, response to external forcing and future climate projections. Using a large variety of CMIP6 experiments, we show that represented ES processes impact more prominently the model response to external forcing than the model performance over present-day. Both models display comparable performance at replicating modern observations although the mean climate of CNRM-ESM2-1 is slightly warmer than that of CNRM-CM6-1. This difference arises from land cover-aerosol interactions where the use of different soil vegetation distributions between both models impacts the rate of dust emissions. This interaction results in a smaller aerosol burden in CNRM-ESM2-1 than in CNRM-CM6-1, leading to a different surface radiative budget and climate. Greater differences are found when comparing the model response to external forcing and future climate projections. Represented ES processes damp future warming by up to 10% in CNRM-ESM2-1 with respect to CNRM-CM6-1. The representation of land vegetation and the CO2-water-stomatal feedback between both models explain about 60% of this difference. The remainder is driven by other ES feedbacks such as the natural aerosol feedback.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00676/78800/81052.pdf
https://archimer.ifremer.fr/doc/00676/78800/81054.docx
DOI:10.1029/2019MS001791
https://archimer.ifremer.fr/doc/00676/78800/
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| Editor: |
Amer Geophysical Union
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| Relação: |
info:eu-repo/grantAgreement/EC/H2020/820829/EU//CONSTRAIN
info:eu-repo/grantAgreement/EC/FP7/641816/EU//CRESCENDO
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| Formato: |
application/pdf
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| Fonte: |
Journal Of Advances In Modeling Earth Systems (1942-2466) (Amer Geophysical Union), 2019-12 , Vol. 11 , N. 12 , P. 4182-4227
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| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
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