| 大气环流模式和耦合模式模拟的降水-海温关系之比较 |
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| 引用本文： | 李博,周天军,吴春强,等.大气环流模式和耦合模式模拟的降水-海温关系之比较[J].大气科学,2009,33(5):1071-1086. |
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| 作者姓名： | 李博 周天军 吴春强 等 |
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| 作者单位： | 1.中国科学院大气物理研究所大气科学与地球流体力学数值模拟国家重点实验室, 北京,100029;中国科学院研究生院, 北京,100049 |
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| 基金项目： | 国家重点基础研究发展规划项目2006CB403603;国家自然科学基金资助项目40523001、40625014 |
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| 摘 要： | 本文讨论了气候系统耦合模式FGOALS_s模拟的局地降水和海温的关系, 并通过与单独大气模式SAMIL的AMIP试验结果进行对比分析, 考察了海气耦合过程对局地降水和海温关系模拟的影响。结果表明, 耦合模式FGOALS_s和单独大气模式SAMIL在模拟局地降水和海温关系上各有优势。在赤道中东太平洋地区, 观测中局地降水和海温的关系是海洋强迫为主, FGOALS_s模拟的海洋对大气的强迫比观测偏弱, 因此, SAMIL相对于FGOALS_s更有优势。在西北太平洋东部地区, 观测中夏秋季节降水和海温的关系是大气强迫为主, 由于考虑了海气相互作用过程, FGOALS_s对降水和海温关系的模拟能力要优于单独的大气模式。此外, 由于大气模式SAMIL的云参数化方案导致的模拟偏差, 在赤道中东太平洋地区 (9～11月), 降水增加时入射的短波辐射通量也是增加的, 并且这种模拟的偏差在耦合后仍然保留了下来, 导致了与观测不符的云CD*2]辐射反馈过程。因此, 改进大气模式的云参数化方案是未来工作重点之一。此外, 分析发现耦合模式模拟的潜热通量的变化过分依赖海气湿度差。
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| 关 键 词： | 局地降水和海温关系 大气模式 海气耦合模式 |
Relationship between Rainfall and Sea Surface Temperature Simulated by LASG/IAP AGCM and CGCM |
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| LI Bo,ZHOU Tianjun,WU Chunqiang and et al.Relationship between Rainfall and Sea Surface Temperature Simulated by LASG/IAP AGCM and CGCM[J].Chinese Journal of Atmospheric Sciences,2009,33(5):1071-1086. |
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| Authors: | LI Bo ZHOU Tianjun WU Chunqiang and |
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| Institution: | 1.State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing,100029;Graduate University of Chinese Academy of Sciences, Beijing,1000492.State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing,100029 |
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| Abstract: | This paper evaluates the relationship between rainfall and sea surface temperature (thereafter SST) simulated by the new version of LASG/IAP (State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences) climate system model (FGOALS_s), which takes the recently improved version of spectral AGCM (SAMIL) as its atmospheric component. To understand the impacts of air-sea coupling on the simulation of relationsh... |
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| Keywords: | relationship between local rainfall and sea surface temperature atmospheric general circulation model coupled general circulation model |
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