Analysis on Spatial-Temporal Variation and Characteristics of Sunshine in Guangxi in Recent 60 Years
In order to better grasp the status of solar radiation resources in Guangxi,the authors used the sunshine observation data of 91 national meteorological observation stations in Guangxi from 1961 to 2020,and used statistical analysis methods such as linear tendency estimation and M-K test to carry out the spatial-temporal variation and characteristics of sunshine duration and percentage of sunshine in Guangxi in the past 60 years.The results show that the annual sunshine duration in Guangxi show a fluctuating downward trend,with more sunshine hours in the 1960s to 1980s and 2000s,and less sunshine hours in the 1990s and 2010s;The annual average sunshine duration and percentage of sunshine in Guangxi show abrupt changes in 1981 and 1974-1976,respectively;The spatial distribution of sunshine is characterized by more in the south and less in the north,more in the valley plain and less in the hilly and mountainous areas;There are obvious seasonal differences in sunshine duration,the sunshine duration are the most in summer and the least in winter,sunshine duration in autumn is more than in spring in most areas;The percentage of sunshine in most areas of Guangxi is the highest in autumn,the second highest in summer,and the least in winter and spring.The research results can provide basic data and basis for the development and utilization of solar radiation resources in Guangxi.
spatial-temporal variationsunshinesunshine durationpercentage of sunshineGuangxi
国家科技期刊平台
NSTL
万方数据
