| 模式顶选取对南海季风爆发过程模拟的影响 |
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| 引用本文： | 钟中,汤剑平,苏炳凯,赵鸣.模式顶选取对南海季风爆发过程模拟的影响[J].气象科学,2003,23(2):127-134. |
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| 作者姓名： | 钟中 汤剑平 苏炳凯 赵鸣 |
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| 作者单位： | 南京大学大气科学系,南京,210093 |
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| 基金项目： | 国家重点基础研究发展规划项目 (G19990 43 40 0 )，国家自然科学基金 ( 40 2 75 0 2 1)资助 |
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| 摘 要： | 本文利用MM5(V3)中尺度模式系统以1998年5月南海季风爆发过程为例，试验了模式顶层气压选取对南海季风爆发过程模拟结果的影响。共做了2个数值试验，分别将模式项选在100hPa和50hPa。试验表明，模式顶选取更高将使得和南海季风爆发过程相对应的东亚高空急流强度和位置模拟与观测更趋一致，并且南海北部地区季风爆发后强降水发生的时间及降水强度的模拟也得到明显改善。
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| 关 键 词： | 南海夏季风 爆发 数值模拟 模式顶气压 |
| 收稿时间： | 2002/3/27 0:00:00 |
| 修稿时间： | 2002年3月27日 |
THE EFFCTS OF MODEL TOP PRESSURE ON THE SIMULATION OF ONSET PROCESS OF SOUTH CHINA SEA SUMMER MONSOON |
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| Zhong Zhong,Tang Jianping,Su Binkai and Zhao Ming.THE EFFCTS OF MODEL TOP PRESSURE ON THE SIMULATION OF ONSET PROCESS OF SOUTH CHINA SEA SUMMER MONSOON[J].Scientia Meteorologica Sinica,2003,23(2):127-134. |
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| Authors: | Zhong Zhong Tang Jianping Su Binkai and Zhao Ming |
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| Institution: | Department of Atmospheric Sciences,Nanjing University,Nanjing 210093;Department of Atmospheric Sciences,Nanjing University,Nanjing 210093;Department of Atmospheric Sciences,Nanjing University,Nanjing 210093;Department of Atmospheric Sciences,Nanjing University,Nanjing 210093 |
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| Abstract: | The effects of model top pressure on the simulation of onset process of South China Sea (SCS) summer monsoon were investigated by use of meso-scale model MM5 (V3) and the onset case of May,1998.Two experiments were conducted with the model top pressure at 100 hPa and 50 hPa,respectively.The results show that the simulated strength and location of East Asia high level jet,associated with the onset of SCS monsoon,are closer to that of observation;compared with the model top at 50 hPa,the simulation of precipitation period and quantity in the north part of SCS is improved significantly. |
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| Keywords: | SCS summer monsoon Onset Numerical simulation Model top pressure |
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