水资源保护2017，Vol.33Issue(5)：106-116,11.DOI:10.3880/j.issn.1004-6933.2017.05.018
华南前汛期降水与前期印度洋海温的关系
Relationship between pre-flood season precipitation in South China and Indian Ocean SST at earlier stages
摘要
Abstract
Based on the precipitation and sea surface temperature(SST) data collected over 54 years from the year 1961 to the year 2014,research on the relationship between pre-flood season precipitation in South China and Indian Ocean SST was conducted by the means of the pearson correlation,singular value decomposition (SVD)method and composite analysis.Besises,the way the unusual changes of Indian Ocean SST affected pre-flood season precipitation in South China was also studied.It was showed that there was a different correlation between the SST in India Ocean and the precipitation in the different months of preceding flood season in Southern China.The central Indian Ocean (64°E-80°E,18°S-EQ) was the key area that affected the April precipitation over South China.The key period of Indian Ocean SSTwas July-August in the previous year.When it was abnormally cold in the key area of the Indian Ocean in July-August in the previous year,precipitation in April increases in South China.On the contrary,when it was abnormally warm in the key area of the Indian Ocean in July-August in the previous year,Southern China is controlled by northerly air currents and precipitation in April is subsequently reduced.关键词
前汛期降水/海温/华南地区/印度洋Key words
pre-flood season precipitation/sea surface temperature/South China/Indian Ocean分类
天文与地球科学引用本文复制引用
胡玉恒,荣艳淑,魏佳,李崇浩,唐红兵,李树山..华南前汛期降水与前期印度洋海温的关系[J].水资源保护,2017,33(5):106-116,11.基金项目
国家自然科学基金(51420105014) （51420105014）
南方电网科技项目(K-ZD2014-014) （K-ZD2014-014）
“十三五”国家重点研发计划项目(2016YFA0601504) （2016YFA0601504）
