TREND OF PRECIPITATION VARIATION IN HUBEI PROVINCE SINCE THE 1960S  

作　　者：CHENZheng-hong QINJun 

机构地区：[1]HubeiInstituteofMeteorologicalScience＆Technology,Wuhan430074,P.R.China [2]NanjingInstituteofMeteorology.Nanjing430074,P.R.China

出　　处：《Chinese Geographical Science》2003年第4期322-327,共6页中国地理科学（英文版）

基　　金：UndertheauspicesofthekeyprojectofNationalTenthFive-yearPlan(No.2001BA611B-01)

摘　　要：Through linear regression analysis to the trend of annual,seasonal and monthly precipitation of 72 meteorological stations in Hubei Province from 1961 to 1995,it is revealed that: 1) annual precipitation was increasing by 61.0mm/10a in the eastern part of Hubei (112°E as a dividing line) and decreasing by 34.9mm/10a in the western part; 2) precipitation in winter and summer (January,February,March,June and July) was increasing in almost whole province which usually with non-uniformity of precipitation distribution from the south to the north. The precipitation in spring,autumn and winter (April,September,November and December) was decreasing in most of the areas which usually with non-uniformity of precipitation distribution from the east to the west. March and December were transition periods between two spatial distribution patterns mentioned above; 3) the eastern part of Hubei has beome one of precipitation increasing centers in China. The results was consistent with the trend that more frequent flood and drought events happened in Hubei Province which are more different in spatial and temporal scales.Through linear regression analysis to the trend of annual, seasonal andmonthly precipitation of 72 meteorological stations in Hubei Province from 1961 to 1995, it isrevealed that: 1) annual precipitation was increasing by 61.0mm/10a in the eastern part of Hubei(112°E as a dividing line) and decreasing by 34.9mm/10a in the western part; 2) precipitation inwinter and summer (January, February, March, June and July) was increasing in almost whole provincewhich usually with non-uniformity of precipitation distribution from the south to the north. Theprecipitation in spring, autumn and winter (April, September, November and December) was decreasingin most of the areas which usually with non-uniformity of precipitation distribution from the eastto the west. March and December were transition periods between two spatial distribution patternsmentioned above; 3) the eastern part of Hubei has beome one of precipitation increasing centers inChina. The results was consistent with the trend that more frequent flood and drought eventshappened in Hubei Province which are more different in spatial and temporal scales.

关 键 词：bias of precipitation temporal and spatial differences Hubei province 

分 类 号：P468.024[天文地球—大气科学及气象学]