安徽省江淮地区气温日较差变化特征分析  

Change characteristic analysis of the diurnal temperature rangee in the Changjiang and Huaihe River region in Anhui Province

作　　者：郁家成[1] 黄小燕[1] 郁阳[2] 梁邦云[2] 郭秀云[2] 

机构地区：[1]安徽农业大学资源与环境学院,安徽合肥230036 [2]安徽省气象局,安徽合肥230031

出　　处：《浙江大学学报（理学版）》2009年第2期237-242,共6页Journal of Zhejiang University（Science Edition）

基　　金：安徽省教育厅自然科学研究项目(2002kj104);安徽省级横向合作研究项目;科技部软科学研究项目(2007GXS3D087)

摘　　要：根据安庆、霍山、合肥、蚌埠和亳州五站1954～2007年共54年逐日最高气温和最低气温资料进行整理和统计,对江淮地区气温日较差年内变化和年际变化的基本特征和差异性进行了分析.结果表明:江淮地区平均气温日较差四季变化呈"高—低—高—低"趋势、各月变化呈"双峰型",并且各站气温日较差都是春秋季大于冬夏季;江淮地区各站历年平均气温日较差随时间推移均呈逐渐减小的趋势.The temperature data of the Anqing, Huoshan, Hefei, Bengbu and Bozhou five stations from 1954 to 2007 have been reorganizated and counted, the characteristics of diurnal temperature range annual and inter-annual changes in the Changjiang and Huaihe River region have been analysed. The results showed there is a＂high low-- high--low＇trend in the various seasons and the obvious＂bimodal type＂in the various monthly average diurnal temperature range changes in the Changjiang and Huaihe River region,and the diurnal temperature range of all the stations is that the range of spring and autumn is bigger than that of winter and summer, twice peak values all appear in spring and autumn. The annual average diurnal temperature range changes have showed the trend which reduces gradually with the passage of time.

关 键 词：江淮地区 气温日较差 时间变化 特征分析 

分 类 号：P49[天文地球—大气科学及气象学] S161[农业科学—农业气象学]