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用一个耦合的全球格点大气环流模式-植被模式模拟中全新世气候变化
作者姓名:Wang  Huijun
作者单位:Wang Huijun LASC,Institute of Atmospheric Physics,Chinese Academy of Sciences Beijing 100029
基金项目:the National Natural Science Foundation of China (NSFC) under Grants Nos. 40125014, 49975018 and 49894170, and Chinese Academy o
摘    要:用一个耦合的全球格点大气环流模式-植被模式模拟中全新世的气候变化,模拟试验中考虑了地球轨道参数的变化,而其他强迫条件均取成现今值。结果表明,耦合的模式能够模拟出较今强的大尺度夏季风,特别是亚洲-非洲季风,而其他季节和区域的变化值一般都比较小。季风环流和季风降水都大幅度地增大了。结果还显示,耦合模式模拟的大尺度季风系统的变化同单纯大气环流模式模拟的结果非常相似,但是,在非洲北部季风区耦合模式模拟的降水和温度变化较单纯大气模式模拟的值要大,而且,耦合模式模拟的冬季降温值要比单纯大气模式模拟的结果小。

关 键 词:中全新世  季风  大气环流模式  植被模式  气候变化
收稿时间:5 April 2001

The mid—Holocene climate simulated by a grid—point AGCM coupled with a biome model
Wang Huijun.The mid—Holocene climate simulated by a grid—point AGCM coupled with a biome model[J].Advances in Atmospheric Sciences,2002,19(2):205-218.
Authors:Wang Huijun
Institution:LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences Beijing 100029
Abstract:The climate simulation for the mid-Holocene about 6000 years before present (6 ka BP) is carried out with a grid-point atmospheric general circulation model (AGCM) coupled with a biome model. This coupled model simulation employs orbital parameters of 6 ka BP but present forcing conditions. Results show that large-scale climate differences between now and then are substantial in summer with dramatically strong African-Asian monsoon flow and precipitation during mid-Holocene. Although the results of this coupled model are qualitatively close to those of the AGCM, the coupled model shows a larger changes in both precipitation and temperature in summer over the North African monsoon area with weaker cooling in the Northern autumn.
Keywords:Mid-Holocene  Monsoon  AGCM  Biome model
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