Indicative Significance of ENSO for Summer Precipitation in Liaoning Province  

ENSO对辽宁夏季降水预测指示意义的研究(英文)

作　　者：王大钧[1] 徐智鑫[1] 胡春丽[1] 

机构地区：[1]沈阳区域气候中心,辽宁沈阳110016

出　　处：《Meteorological and Environmental Research》2010年第8期102-104,共3页气象与环境研究（英文版）

摘　　要：Based on the summer precipitation data from 53 stations in Liaoning Province and sea surface temperature(SST) data of Hadley Center in 1961-2009,the decadal variation of the relationship between summer precipitation and SST over Nino3 oceanic regions in the previous autumn was studied.The results showed that their correlation was decreased obviously in recent 30 years.In 1961-1974,summer rainfall could be forecasted according to the SST anomaly over Nino3 oceanic regions in the previous autumn,and there were above 25 stations with the sign accuracy of over 66.7%.However,there were only five stations with the same accuracy during 1980-2009.From 1961 to 1974,25 stations showed block distribution in the central and northeastern Liaoning,but the distribution of five stations was spotty in 1980-2009.Before the middle and latter half of the 1970s,Liaoning had more(less) summer rainfall when SST over the equatorial central and eastern Pacific was higher(lower) in the previous autumn.However,it was difficult to build indicative relationship above since 1980s.Based on the summer precipitation data from 53 stations in Liaoning Province and sea surface temperature(SST) data of Hadley Center in 1961-2009,the decadal variation of the relationship between summer precipitation and SST over Nino3 oceanic regions in the previous autumn was studied.The results showed that their correlation was decreased obviously in recent 30 years.In 1961-1974,summer rainfall could be forecasted according to the SST anomaly over Nino3 oceanic regions in the previous autumn,and there were above 25 stations with the sign accuracy of over 66.7%.However,there were only five stations with the same accuracy during 1980-2009.From 1961 to 1974,25 stations showed block distribution in the central and northeastern Liaoning,but the distribution of five stations was spotty in 1980-2009.Before the middle and latter half of the 1970s,Liaoning had more(less) summer rainfall when SST over the equatorial central and eastern Pacific was higher(lower) in the previous autumn.However,it was difficult to build indicative relationship above since 1980s.

关 键 词：ENSO Summer precipitation DECREASE China 

分 类 号：P468.024[天文地球—大气科学及气象学]