Emulation of the results from a coupled general circulation model using a simple climate model

被引:36
作者
Raper, SCB [1 ]
Cubasch, U [1 ]
机构
[1] DEUTSCH KLIMARECHENZENTRUM,D-20146 HAMBURG,GERMANY
关键词
D O I
10.1029/96GL01065
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
An upwelling diffusion (UD) model has been fitted to the results of a globally coupled ocean atmosphere general circulation model (O/AGCM). In order to adequately simulate the results of the O/AGCM, the differential heating over land and ocean, the change of the upwelling rate with rising mixed-layer temperature and the climate adjustment of the O/AGCM evident in the control simulation had to be taken into account. Comparisons using the results of four O/AGCM perturbation experiments show that the timing of the adjustment in the O/AGCM control run differs from that in the perturbed runs. The UD model simulates the global mean temperature evolution, as calculated by the O/AGCM reasonably well. However, when time dependent upwelling is included, the UD model substantially overestimates the thermal expansion compared to this O/AGCM. Possible reasons for this overestimation have been identified.
引用
收藏
页码:1107 / 1110
页数:4
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