Based on the monthly mean temperatu re,the changing processes and tendencies of temperature during1951-2000in Jilin Province,which i s in Northeast China,are analyzed.A nd the spatial characteristics of th e change ar...Based on the monthly mean temperatu re,the changing processes and tendencies of temperature during1951-2000in Jilin Province,which i s in Northeast China,are analyzed.A nd the spatial characteristics of th e change are submitted.In the past 50years the te mperature of Jilin Province was increasing just like the other areas in th e world.Since 1990,the increasing of temperature has been more obvious th an that in the previous 40a.From the west to the east,the province has larger tem perature rising.According to Principal Component Analysis(PCA)of temperature field,Jilin Province is divided int o 3regions and the degree of becoming warmer is different from region to re gion.During the period of 1951to 2000,the annual temperature in Jilin Province has been rising,so has the temperature in winter and summer.The average temperature in t he 1990s was 0.5-2.0℃higher than that in the 1950s.From the west to the east,the increasing of temperature becam e smaller.展开更多
文摘Based on the monthly mean temperatu re,the changing processes and tendencies of temperature during1951-2000in Jilin Province,which i s in Northeast China,are analyzed.A nd the spatial characteristics of th e change are submitted.In the past 50years the te mperature of Jilin Province was increasing just like the other areas in th e world.Since 1990,the increasing of temperature has been more obvious th an that in the previous 40a.From the west to the east,the province has larger tem perature rising.According to Principal Component Analysis(PCA)of temperature field,Jilin Province is divided int o 3regions and the degree of becoming warmer is different from region to re gion.During the period of 1951to 2000,the annual temperature in Jilin Province has been rising,so has the temperature in winter and summer.The average temperature in t he 1990s was 0.5-2.0℃higher than that in the 1950s.From the west to the east,the increasing of temperature becam e smaller.
