| 2007年南海夏季风的爆发过程 |
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| 引用本文： | 陈湘雅,周锁铨,周兵.2007年南海夏季风的爆发过程[J].南京气象学院学报,2009,32(1). |
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| 作者姓名： | 陈湘雅 周锁铨 周兵 |
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| 作者单位： | 1. 南京信息工程大学,气象灾害省部共建教育部重点实验室,江苏,南京,210044
2. 中国气象局,国家气象中心,北京,100081 |
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| 基金项目： | 财政部/科技部公益类气象行业专项基金 |
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| 摘 要： | 利用NCEP/NCAR再分析资料、向外长波辐射(outgoing long-wave radiation,OLR)资料以及卫星、地面站点降水资料,对2007年南海夏季风爆发前后的对流活动、环流形势及降水分布进行研究,结果表明:2007年对流活动增强首先出现在孟加拉湾东岸,然后扩展到南海地区;同时副高东撤北抬,南海夏季风于5月中下旬(29候)爆发;季风爆发后,南海地区开始盛行西南气流,亚洲中低纬地区南北温差(风向切变)由正(负)变负(正).2007年南海夏季风爆发期间,水汽输送和季风涌活动增强使我国东部地区降水增多.
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| 关 键 词： | 南海夏季风 对流活动 环流形势 降水 |
Onset Process of South China Sea Summer Monsoon in 2007 |
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| CHEN Xiang-ya,ZHOU Suo-quan,ZHOU Bing.Onset Process of South China Sea Summer Monsoon in 2007[J].Journal of Nanjing Institute of Meteorology,2009,32(1). |
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| Authors: | CHEN Xiang-ya ZHOU Suo-quan ZHOU Bing |
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| Institution: | 1.Key Laboratory of Meteorological Disaster of Ministry of Education;NUIST;Nanjing 210044;China;2.National Meteorological Center;China Meteorological Administration;Beijing 100081;China |
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| Abstract: | Based on the NCEP/NCAR reanalysis data,outgoing long-wave radiation(OLR) data and precipitation observed by satellite and meteorological stations,the convective activity,general circulation and precipitation before and after South China Sea summer monsoon(SCSSM) onset of 2007 are analyzed.Results show that the convective heating first appears in the east coast of Bay of Bengal,then extending to South China Sea in 2007.Meanwhile,the subtropical high withdraws eastward and northward,and SCSSM breaks out in th... |
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| Keywords: | South China Sea summer monsoon convective activity circulation situation precipitation |
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