印度洋海温异常对亚洲季风区天气气候影响的数值模拟研究

晏红明; 肖子牛

印度洋海温异常对亚洲季风区天气气候影响的数值模拟研究

云南省气象台, 云南, 昆明, 650034

基金项目: 云南省科委应用基金97D033Q课题;LASG支持

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出版历程
- 收稿日期: 1998-11-18
- 修回日期: 1999-05-10

THE NUMERICAL SIMULATION OF THE INDIAN OCEA SSTA INFLUENCE ON CLIMATIC VARIATIONS OVER ASIAN MONSOON REGION

Meteorological Bureau of Yunnan Province, Yunnan Kunming 650034

摘要

摘要: 利用中国科学院大气物理研究所IAP9L大气环流模式,模拟研究了印度洋 SSTA对亚洲季风区大气环流和天气气候异常的影响。结果表明,印度洋赤道低纬地区的暖(冷)SSTA,可以在北半球中高纬度地区激发产生与PNA和EAP类似的冬季遥相关型或夏季遥相关型波列,对亚洲季风区中低纬度地区的环流异常或天气气候异常有重要作用。当印度洋暖(冷)SSTA强迫时,亚洲夏季风建立较正常偏晚(偏早),撤退较早(较晚),季风季节长度较短(较长),季风较弱(较强).
- 亚洲季风 /
- 印度洋海温异常 /
- 数值模拟
Abstract: Based on IAP9L, the effects of the sea surface temperature anomaly (SSTA) in Indian Ocean on the climate over Asian monsoon region are studied. The results indicated that the warmer (colder) SSTA in equatorial Indian Ocean would resulted in the wave trains which are similar to the teleconnection patterns PNA and EAP in middle and high latitude region. Furthermore, SSTA in Indian Ocean may result in significant effects on the weather and climate over Asian monsoon region. With the warmer (colder) SSTA forcing, the Asian Summer monsoon will break out later (earlier) and withdraw earlier (later) than usual, and it will last shorter (longer) and the intensity is weaker (stronger) than the normal.
- Asian monsoon /
- Indian Ocean SSTA /
- Numerical simulation

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参考文献(14)

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