干旱区陆面过程参数改进对气候模拟结果的影响  

The Effect of Improved Land Surface Process Parameters in Arid Area on Climatic Simulation in GCM

作　　者：鲍艳[1] 左洪超[1] 吕世华[1] 张宇[1] 

机构地区：[1]中国科学院寒区旱区环境与工程研究所,甘肃兰州730000

出　　处：《高原气象》2004年第2期220-227,共8页Plateau Meteorology

基　　金：国家重点基础研究发展规划(G1999043400);中国科学院方向性创新项目(KZCX3 SW 329;KZCX1 09);国家自然科学重点基金项目(4023325)共同资助

摘　　要：利用改进的我国西北地区陆面过程参数的大气环流模式CCM3与原CCM3模式分别做了数值模拟并加以对比分析。结果表明,改进后的模式较原模式对东亚季风和西北干旱区降水的模拟能力有一定提高,对西北部分地区感热、潜热通量的模拟有所改进。这说明通过观测改进陆面过程模式的参数是提高CCM3气候模式模拟能力的一种重要途径。The air-land interaction has an important effect on the global and regional climates. In this paper, we do some comparisons of numerical simulation results between original CCM3 and CCM3 with the validated land surface process parameters (LCCM3 for short). Comparing with the original CCM3 results, LCCM3 can make better simulations of East Asia monsoon and precipitation in Northwest China, and modify the simulations of sensible and latent heat fluxes in part regions of Northwest China. It shows that the simulation ability of CCM3 model can be somewhat improved by changing the land surface process parameterization based on the observation.

关 键 词：中国西北干旱区 大气环流模式 陆面过程模式参数 气候模拟 

分 类 号：P435.2[天文地球—大气科学及气象学]