摘要
500 hPa环流特征分析表明,副高异常强盛是造成2003年江西夏季罕见高温的主要原因。利用1959—2002年资料对江西夏季高温与同期和前期500 hPa高度场、海温场进行相关普查以及高、低温年合成对比分析发现,上年10月赤道太平洋中东部海温偏高、当年1月500 hPa高度场新地岛附近为负距平;10月海温与次年夏季副高关系较好。用海温对夏季高温进行了预测试验,效果较好。
The diagnostic analysis of 500 hPa circulation features of the exceptional high temperature in summer 2003 in Jiangxi Province shows that the exceptionally strong subtropical high was the main cause responsible for the high temperature. After generally investigating the correlation of summer high temperature in Jiangxi with the 500 hPa height fields and SST fields from 1959 to 2002, and comparing the composites of 500 hPa height and SSTA of high and low summer temperature years, it is found that the positive SSTA in the equatoral central-east Pacific in the previous October and the negative height anomaly around Novaja Zeml＇a in January have a close relation to summer high temperature especialy, the SSTA in the previous October has a good relationship with the subtropical high in the subsequent summer.
出处
《南京气象学院学报》
CSCD
北大核心
2005年第6期855-861,共7页
Journal of Nanjing Institute of Meteorology
关键词
罕见高温
诊断分析
大气环流
海温
exceptional high temperature
diagnosis analysis
general circulation
SST
