用区域气候模式模拟人为硫酸盐气溶胶在气候变化中的作用

高学杰; 林一骅; 赵宗慈

用区域气候模式模拟人为硫酸盐气溶胶在气候变化中的作用

1.
国家气候中心, 北京, 100081
2.
中国科学院大气物理研究所, 北京, 100029

基金项目: 《国家重点基础研究发展规划》"我国重大气候灾害形成机理和预测理论的研究(G1998040900)"项目;全球环境变化对策与支撑技术研究项目全球与中国气候变化的检测和预测课题(2001-BA611B-01)共同资助

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出版历程
- 收稿日期: 2002-05-18
- 修回日期: 2002-11-18

MODELLING THE EFFECTS OF ANTHROPOGENIC SULFATE IN CLIMATE CHANGE BY USING A REGIONAL CLIMATE MODEL

1.
National Climate Center, Beijing 100081, China
2.
Institute of Atmospheric Physics, China Academy of Science, Beijing 100029, China

摘要

摘要: 使用新版RegCM2区域气候模式,单向嵌套澳大利亚CSIROR₂₁L9全球海-气耦合模式,在CO₂加倍情况下引入人为硫酸盐气溶胶直接气候效应,进行了其对中国气候变化影响的试验。结果表明,硫酸盐气溶胶的直接气候效应,对地面气温为降温作用,其中在冬半年和在南方更明显;对降水的影响为全国各月平均降水将以减少为主,年平均降水变化的基本特点为在中国东部以减少为主,西部以增加为主。但无论温度还是降水变化的数值都很小。
- 温室效应 /
- 区域气候模式 /
- 中国区域 /
- 人为硫酸盐气溶胶
Abstract: Effects of aerosol with focus on the direct climate effect of anthropogenic sulfate aerosol under 2×CO₂ condition were investigated by introducing aerosol distribution into the latest version of RegCM2. Two experiments,first run (2×CO₂ + 0 aerosol concentration) and second run (2×CO₂ + aerosol distribution),were made for 5 years respectively. Preliminary analysis shows that the direct climate effect of aerosol might cause a decrease of surface air temperature. The decrease might be larger in winter and in South. The area-averaged monthly precipitation might also decrease at most of the months due to the effect. The annual mean change of precipitation might be a decrease in East and an increase in West China. But the changes of both temperature and precipitation simulated by the model were much smaller as compared to the greenhouse effect.
- greenhouse effect /
- regional climate model /
- China area /
- anthropogenic sulfate aerosol

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参考文献(14)

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