北碚区近50年人体舒适度变化特征分析  

Analysis on Human Comfort Variation Features in Beibei District for 50 years

作　　者：吉莉 李家启 李强 

机构地区：[1]重庆市北碚区气象局,重庆400700

出　　处：《三峡环境与生态》2013年第1期25-27,31,共4页Environment and Ecology in the Three Gorges

基　　金：重庆市气象局青年基金项目(QNJJ201122)资助

摘　　要：利用北碚逐日气象资料(1961～2010年),基于人体舒适度指数模型和气候影响评价标准,综合采用线性趋势、MK突变等方法重点分析其变化特征。结果显示:北碚区人体舒适季节主要分布在3～5月,9～11月,且人体舒适度指数呈明显上升趋势。年、四季人体舒适天数突变趋势为减少趋势,其中春季和冬季人体舒适度天数存在明显的突变现象,但未通过信度检验。夏季、秋季人体舒适天数突变点主要是出现在21世纪初。这主要是由于人体舒适度指数与气温(风速、湿度)存在显著的正(负)相关关系。Based on the Beibeis daily metrological observation data ranged from 1961 to 2010, the author conducts investigation and evaluation into human comfort index variation trends, through linear analysis and Mann-Kendall method. Criterion for evaluating climatic influence is employed as well. The results reveal that the most comfortable periods in Beibei range from March to May, and September to November as well , in addition, human comfort index shows a significant increasing trends every year. Annual and four-season human comfortable days for abrupt changes exhibit decreasing trends, while in spring and winter, though this abrupt changes trend appears to be evident, it fails to pass the reliability test . The abrupt changes of human comfortable days during summer and autumn predo- minantly present in the beginning of 2ist century, which may be explained by the significantly positive （negative） correlation existing between human comfortable index and temperature （wind speed and humidity in particular）.

关 键 词：北碚区 人体舒适度指数 变化特征 

分 类 号：P463.1[天文地球—大气科学及气象学]