摘要
根据1964—2015年辽宁省23个气象站点的逐日平均气温、相对湿度及平均风速资料,采用人体舒适度指数法计算人体舒适度指数,在季尺度上分析辽宁省不同等级舒适日数演变情况及典型旅游城市最佳旅游期;运用旋转经验正交函数分解法(REOF),分析人体舒适度指数季尺度空间变化特征,并应用Arc GIS软件进行舒适区域划分。结果表明:(1)辽宁省多年平均冷不舒适日数呈降低趋势,舒适日数呈增加趋势,热不舒适日数也呈微弱增加趋势;舒适程度夏季>秋季>春季>冬季;(2)除冬季外5座典型旅游城市均适宜旅游,夏季为最佳旅游期;其中,沈阳、本溪更适宜春季旅游,大连更适宜秋季旅游。(3)辽宁省四季舒适度变化情况可大致划分为辽西、辽中、辽东三个区域,具体划分情况随季节有相应变化,总体舒适度由辽宁东部向西部逐渐递减。
The influences of the human body comfort on the daily life and work of the public are significant,and the studies of its changing characteristics are of great significance to the urban meteorological service.Based on the daily mean temperature,relative humidity and average wind speed data collected by 23 meteorological stations in Liaoning Province from 1964 to 2015,the human body comfort index is used to calculate the comfort index of the human body.The evolution of the comfort days of different grades in Liaoning Province is analyzed in accodance with the season scales.The optimal travel periods of the typical tourist cities are analyzed by using the rotation empirical orthogonal function decomposition method（ REOF）,and the analysis of the spatial variation in the geometric comfort index is carried out.An Arc GIS software is used to divide the comfort regions.The analysis results show that：（1） The average number of the cold uncomfortable days in Liaoning Province has a decreasing trend,and the number of comfortable days has an increasing trend,meanwhile the number of days of the heat discomfort has a slight increase trend.The comfort degree is summer autumn spring winter;（2）Except for winter,the five typical tourist cities are suitable for tourism,the summer is the best season for tourists to have a great tour; Shenyang and Benxi are more suitable for the spring tourism,and Dalian city is more suitable for the autumn tourism;（3） The changes of comfort in four seasons of Liaoning Province can be roughly divided into three regions： western Liaoning,Liaozhong and Liaodong.The specific situation varies with the seasons,and the overall comfort is gradually decreasing from the eastern to the western regions of Liaoning Province.The results given by this study are aimed to provide the theoretical suggestions and guiding opinions for the daily life and a scientific reference to the travel of the public.
出处
《水利水运工程学报》
CSCD
北大核心
2017年第5期23-29,共7页
Hydro-Science and Engineering
基金
国家自然科学基金资助项目(51579126
51779114)
水沙科学与水利水电工程国家重点实验室(清华大学)2015年对外开放基金资助项目(sklhse-2016-A-02)
关键词
人体舒适度指数
舒适日数
气温变化
时空分布特征
human body comfort index
comfortable days
temperature variation
spatial and temporal distribution characteristics
作者简介
作者简介：曹永强（1972-）,男,内蒙古丰镇人,教授,博士,主要从事水文水资源方面研究.E-mail：caoyongqiang@lnnu.edu.cn
