局地海陆热力对比对南海夏季风爆发影响的数值试验

任雪娟; 钱永甫

局地海陆热力对比对南海夏季风爆发影响的数值试验

南京大学大气科学系江苏南京 210093

基金项目: 国家自然科学基金项目(40175021)资助

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出版历程
- 收稿日期: 2000-02-13
- 修回日期: 2001-07-16

NUMERICAL SIMULATION EXPERIMENTS OF THE IMPACTS OF LOCAL SEA-LAND THERMODYNAMIC CONTRASTS ON THE SCS SUMMER MONSOON ONSET

Departments of the Atmospheric Sciences, Nanjing University, Nanjing 210093 China

摘要

摘要: 使用p-σ区域气候模式,通过两组海温异常下的数值试验和2个理想试验来初步探讨南海与中南半岛局地海陆热力对比对南海夏季风爆发的影响。结果表明:冬春季南海海温增暖使南海高低空均呈现出有利于季风环流形成的形势,促进南海夏季风的爆发;冬春季南海海温变冷的作用则基本相反。南海地区局地海陆热力对比是南海夏季风爆发的可能原因之一,这种局地的海陆热力差异叠加在大尺度的海陆热力差异作用之上,对南海季风在南海地区突发性爆发特征的形成起了一定的促进作用。
- 局地海陆热力对比 /
- 南海夏季风 /
- p-σ区域气候模式
Abstract: The important effects of local sea-land thermodynamic contrast of South China Sea (SCS) and Indochina Peninsula on SCS summer onset are studied in this paper by using two sets of SSTA tests and two ideal tests in p-σ regional climate model. The results show that the warmer SST in the SCS in winter and spring can make a good condition for formation of monsoon circulation in high and low levels, which promote the SCS summer monsoon onset. The effects of colder SST are opposite basically. The local sea-land contrast in the SCS is one of the possible reasons for SCS summer monsoon onset. It piles upon large-scale sea-land thermodynamic differences and facilitates the formation of the sudden onset characteristics of SCS summer monsoon in the SCS area.
- local sea-land thermodynamic contrast /
- SCS summer monsoon /
- p-σ regional climate model

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参考文献(15)

[1]	HE Y H, GUAN C H, GAN Z J.Heat oscillation in the upper ocean of the South China Sea[J].Acta Ocean Sin, 1992, 11: 375-388.
[2]	闫俊岳.南海西南季风爆发的气候特征[J].气象学报, 1997, 2: 174-186.
[3]	金祖辉, 沈如桂.长江中下游旱梅和涝梅年海温场及大气环流系统的特征[A].气象科学技术集刊[C].北京:气象出版社,1987.196-209.
[4]	梁建茵.南海海温变化及其对广东雨量的影响[J].热带气象, 1991, 7: 246-253.
[5]	REN Xue-juan, QIAN Yong-fu.Basic climatological features of air-sea heat exchanges in the South China Sea(SCS) region and their relations with the SCS monsoon[J].Acta Meteor Sin, 1999, 13: 426-438.
[6]	孙照渤, 章基嘉, PALMER T N.南海表面温度距平对我国夏季风和降水影响的数值试验[J].气象学报,1990, 48: 113-116.
[7]	吴晓彤, 梁必骐, 王安宇.初夏南海海温对华南降水影响的数值模拟[J].海洋学报, 1995, 17(2): 38-43.
[8]	陈隆勋, 王予辉.南海和西太平洋暖池表面海温对东亚季风影响的数值模拟[A].亚洲季风研究的新进展-中日亚洲季风机制合作研究论文集[C].北京:气象出版社, 1996.184-199.
[9]	钱永甫, 颜宏, 骆启仁, 等.一个有大地形影响的初始数值模式[J].大气科学, 1978, 29(2): 91-102.
[10]	KUO H L, QIAN Yong-fu.Influence of the Tibetau Plateau on cumulative and diurnal change of weather and climate in summer[J].Mon Wea Rev, 1981, 109: 2337-2356.
[11]	刘华强, 钱永甫.p-σ坐标系区域气候模式对冬夏季月平均场的模拟试验[J].南京大学学报, 1999, 35: 337-345.
[12]	ZHANG Qiong, QAIN Yong-fu.Effects of boundary layer parameterization on the monthly mean simulation[J].Acta Meteor Sinica, 1999, 13(1): 73-85.
[13]	SO C H, JOHNNY C L, CHAN.An observational study on the onset of the summer monsoon over South China around Hong Kong[J].J Meteor Soc Japan, 1997, 75(1): 43-57.
[14]	赵永平, 陈永利, 白学志, 等.南海-热带东印度洋海温年际变化与南海季风爆发关系的初步分析[J].热带气象学报, 2000, 16: 115-122.
[15]	朱乾根, 徐国强.南海夏季风爆发机制的数值实验研究[J].气候与环境研究, 2000, 5: 495-506.