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气象:2000,26(5):3-7
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北太平洋海温异常对我国降水影响的数值试验
(山东省气象科学研究所,济南 250031)
Simulation of the Effect of North Pacific SST Anomaly in the Middle Latitute on Precipitation in China
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中文摘要: 利用全球大气环流模式(OSU-AGCM) ,作中纬度北太平洋热源异常强迫的数值试验,分析中纬度北太平洋海温异常对降水的影响。结果表明,中纬度北太平洋大范围海温降低,将造成东北地区季内降水偏多,而我国40°N以南大部分地区降水偏少;同时,北太平洋中低纬度地区降水将发生显著的变化。通过分析海温异常所造成的大气物理量场的变化,就海温异常对降水的影响机制进行了探讨,得出一些有益的结果。
Abstract:The effect of north Pacific SST anomaly in the middle latitute,which is both active and significantly correlative with rainfall in China,on precipitation was simulated by means of OSU-AGCM.The results show that SST decrease in a large scale may cause more rainfall in north China and less precipitation in south China with a boundary at about 40°N latatute.At the same time significant changes take place for precipitation in north Pacific in the middle and low latitute.The mechanism of the impact of SST anomaly on precipitation was discussed through analysing the variation of the atmospheric physical fields caused by SST anomaly and some useful results were obtained.
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基金项目:中国气象局科技项目“卫星资料在山东旱涝分析预测中的应用”资助
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引用文本:
朱平盛,张苏平,胡桂芳,2000.北太平洋海温异常对我国降水影响的数值试验[J].气象,26(5):3-7.
,2000.Simulation of the Effect of North Pacific SST Anomaly in the Middle Latitute on Precipitation in China[J].Meteor Mon,26(5):3-7.