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(Article of periodic en Anglais - 2009)

Document title

Suppressant effect of instantaneous CO2 doubling on global precipitation

Authors(s) and Affiliation(s)

KAMAE Y. (1) ; UEDA H. (1) ;
(1) Graduate School of Life and Environmental Sciences, Univ., Tsukuba, JAPON

Abstract

In this study, the energy balances that are responsible for the suppression of rainfall were quantitatively investigated based on 7 GCMs in which instantaneous doubling of CO2 experiments were conducted. Radiative heating induced by CO2 doubling warmed both the atmosphere and the surface, while the amount of the surface heating was smaller relative to that of the atmosphere. Consequently, the attenuated heating at the surface resulted in weakening of evaporation on the surface, which could explain the decrease of rainfall. As for the heat budget of the atmosphere, the attenuated heating was balanced with the less condensation heating, implicating radiative adjustment was a key element for the rainfall decrease

Source

Article of periodic

published at : Tsukuba geoenvironmental sciences / ISSN 1880-6252

Editor : JAPON

Millesime : 2009, vol. 5 [pp. 11-16]

Bibliographic references : 23 ref.

Collation : 4 fig., 2 tabl.

Language

Anglais

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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