摘要
利用1951～2006年天水、岷县、临夏和兰州4站秋季(9～10月)降水量资料,NINO综合区(NINO1+2+3+4区)海温距平指数资料和北太平洋海温资料,分析了甘肃河东秋雨的气候变化及其与厄尔尼诺和前期热带海温的关系。发现甘肃河东秋雨存在着明显的年代际变化;厄尔尼诺(拉尼娜)事件与甘肃河东秋雨关系密切;前期6、7、8月份热带海温距平分布和热带关键区海温异常变化对甘肃河东秋雨有很好的预测指示意义。
Using autumn （September to October） precipitation data of stations of Tianshui, Minxian, Linxia and Lanzhou in 1951- 2006, sea surface temperature departure index data of the NINO composed area （areas of NINO 1,2,3,4）, and the sea surface temperature （SST） data of the North Pacific Ocean, it has analyzed the relation between the climate change of autumn rain in the Gansu Hedong area, and El Nino and the tropical sea surface temperature in the former time period. It has found that the autumn rain in the Gansu Hedong area has obvious decadal change. El Nino（La Nina） is closely connected with the autumn rain in the Hedong region, Gansu province. The tropical sea surface temperature departure distribution in the former June, July and August, and the sea surface temperature abnormal change in tropical key areas, are quite meaningful to forecast the autumn rain in the Gansu Hedong area.
出处
《海洋预报》
2008年第4期9-14,共6页
Marine Forecasts
关键词
厄尔尼诺
河东秋雨
降水关系
分析
El Nino
Hedong Autumn rain
precipitation relationship
