摘要
蒸发量变化特征及影响因素研究具有重要的现实意义。本文选取贵州清镇1970—2019年蒸发量、气温、日照百分率等气象资料,利用气候倾向率、M-K检验、Morlet小波分析等方法对贵州清镇蒸发量变化特征及其影响因素进行分析,结果表明:贵州清镇月蒸发量呈“M”型特征,春季、夏季、秋季、冬季、年及年代蒸发量均呈减少趋势,各季节、年蒸发量都发生了突变,各季节、年蒸发量分别存在4类不同时间尺度的小波周期变化特征。蒸发量变化受气温、气温日较差、日照百分率、低云量、相对湿度、风速等因素共同影响。
It is of great practical significance to study the variation characteristics and influencing factors of evaporation.We selected the meteorological data in Qingzhen, Guizhou from 1970 to 2019 to analyze the variation characteristics and influencing factors of evaporation by using climate tendency rate, M-K inspection, and Morlet wavelet analysis.The results showed that the monthly evaporation in Qingzhen had an“M” type tendency, and the evaporation in spring, summer, autumn, winter, the year and the years showed a decreasing trend;the evaporation in each season and year had abrupt changes, and there were four types of wavelet periodic variation on different time scales of the evaporation in each season and year.Evaporation changes were affected by multiple factors, such as temperature, daily temperature range, percentage of sunshine, low cloud cover, relative humidity, and wind speed.
作者
金昭贵
滕万里
吴智凤
杨涛
刘梅
张皓
李娟
JIN Zhaogui;TENG Wanli;WU Zhifeng;YANG Tao;LIU Mei;ZHANG Hao;LI Juan(Qingzhen Meteorological Bureau,Qingzhen 551400,China;Xiuwen No.1 High School,Xiuwen 550299,China;Guiyang Meteorological Bureau,Guiyang 550006,China)
出处
《贵州科学》
2022年第3期68-74,共7页
Guizhou Science
基金
贵州省气象局科研业务项目(黔气科登[2021] 01-19号)
贵阳市气象局气象科研业务项目(合同编号:筑气科合YW[2021]02号)。
关键词
贵州清镇
蒸发量
小波分析
M-K检验
Qingzhen of Guizhou
evaporation
wavelet analysis
M-K inspection
