摘要
文中利用甘肃黄土高原1971～2000年56个站的降水资料,分析了春季第一场透雨日期的变化特征,用EOF和REOF方法对其做了分解,进行了透雨日期的气候分区。结果表明,透雨早的年份,春季降水偏多,20世纪90年代以来,透雨日期以偏迟为主。
Used by precipitation data at 56 weather stations of The loess plateau in Gansu Province from 1971 to 2000,we researched the time evolution features of the first soaking rain in Spring, analyzed with EOF and REOF method ,divided up the climate region.The result shows that precipitation in Spring will excessive when the first soaking rain were early,and the first soaking rain is usually tardy since 1990's.
出处
《甘肃气象》
2003年第1期8-10,共3页
Gansu Meteorology
基金
中国气象局兰州干旱气象研究所启动基金的资助(兰干研发(2002)08号)
