陕西省关中、陕南地区初夏干旱特点及预测研究  

STUDY ON CHARACTERISTICS AND PREDICTION OF DROUGHT IN EARLY SUMMER IN GUANZHONG AND SOUTHERN SHAANXI

作　　者：牛桂萍[1] 李智嘉[2] 杨月娟[2] 侯明全[2] 陈高峰[2] 

机构地区：[1]陕西省气象局,西安710015 [2]陕西省气象台

出　　处：《灾害学》1997年第2期63-67,共5页Journal of Catastrophology

摘　　要：应用1958～1995年38a6月份陕西省关中、陕南地区24站的降水资料，研究了关中、陕南6月份的降水特点；选取其中12站作为资料站，计算出关中、陕南6月份的降水指数f,研究了关中、陕南初夏（6月份）的干旱特点；就初夏干旱发生的高空500hPa环流形势与历年平均状况进行了对比分析，并对初夏干旱作了预测。The precipitation data of 38 years from 1958 to 1995 from 24 stations areused to analyze the precipitation characteristics in June in Guanzhong and SouthernShaanxi. 12 stations are selected as data station. The precipitation index of June is calculated and drought characteristics are studied for the two regions. Upper air circulationat 500 hPa when drought occurred in early summer is analytically compared with the average situation of calendar year and prediction is made to early summer drought.

关 键 词：干旱 旱灾 降水特点 陕西 干旱预测 

分 类 号：S423[农业科学—植物保护] P426.616[天文地球—大气科学及气象学]