Implications of global warming for the climate of African rainforests.
Implications of global warming for the climate of African rainforests.
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DOI:
10.1098/rstb.2012.0298
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Rowell DP
中科院分区:
文献类型:
--
作者:
James R;Washington R;Rowell DP
African rainforests are likely to be vulnerable to changes in temperature and precipitation, yet there has been relatively little research to suggest how the regional climate might respond to global warming. This study presents projections of temperature and precipitation indices of relevance to African rainforests, using global climate model experiments to identify local change as a function of global temperature increase. A multi-model ensemble and two perturbed physics ensembles are used, one with over 100 members. In the east of the Congo Basin, most models (92%) show a wet signal, whereas in west equatorial Africa, the majority (73%) project an increase in dry season water deficits. This drying is amplified as global temperature increases, and in over half of coupled models by greater than 3% per °C of global warming. Analysis of atmospheric dynamics in a subset of models suggests that this could be partly because of a rearrangement of zonal circulation, with enhanced convection in the Indian Ocean and anomalous subsidence over west equatorial Africa, the Atlantic Ocean and, in some seasons, the Amazon Basin. Further research to assess the plausibility of this and other mechanisms is important, given the potential implications of drying in these rainforest regions.
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DOI:
10.1073/pnas.0804619106
发表时间:
2009-12-08
影响因子:
11.1
作者:
Malhi, Yadvinder;Aragao, Luiz E. O. C.;Meir, Patrick
通讯作者:
Meir, Patrick
影响因子:
4.6
作者:
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通讯作者:
Webb, MJ
影响因子:
3.4
作者:
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通讯作者:
Jones, CD
影响因子:
4.6
作者:
Mohino, Elsa;Janicot, Serge;Bader, Juergen
通讯作者:
Bader, Juergen
影响因子:
4.4
作者:
Monerie, Paul-Arthur;Fontaine, Bernard;Roucou, Pascal
通讯作者:
Roucou, Pascal