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| Titel |
Robust relationships in past and future simulation: atmospheric circulation and hydrological cycle over the tropics |
| VerfasserIn |
Kenji Izumi, Masa Kageyama, Sandrine Bony, Pascale Braconnot |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250103868
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| Publikation (Nr.) |
 EGU/EGU2015-3289.pdf |
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| Zusammenfassung |
| The CMIP5 (paleo, modern, and idealized warm) simulations and both modern and paleo environmental data show several features of large-scale temperature responses (e.g. land-ocean contrast, high-latitude amplification, and seasonality change), and these responses are proportional, generally linear across simulations of both warm and cold climate states that are induced by changes in atmospheric CO2 concentration. On the other hand, projecting the response of precipitation to climate changes faces a host of challenges. In this study, we mainly investigate the robust relationship about seasonal atmospheric circulation and hydrological cycle, which is associated with the large-scale temperature responses, over the tropics between past and idealized warm simulations with CMIP5 models. Finally, we investigate the role of cloud-radiative effects in paleo-climatic changes through experiments in which clouds are made transparent to radiation using the IPSL model. The impact of cloud-radiative effects on circulation and precipitation changes in mid-Holocene and last glacial maximum experiments will be discussed. |
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