沙漠与绿洲气象2023，Vol.17Issue(6)：154-160,7.DOI:10.12057/j.issn.1002-0799.2023.06.021
成都市太阳辐射时间变化特征及对气候因子的影响
Temporal Variation of Solar Radiation in Chengdu and Its Influence on Climate Factors
摘要
Abstract
Based on the meteorological data of total solar radiation,direct radiation,thermal radiation,temperature,evaporation and sunshine hours in Chengdu from 1991 to 2020,the annual,monthly and daily variation characteristics of solar radiation were examined as well as its influences on temperature,evaporation and other climatic factors by using the methods of linear trend and Mann-Kendall test.The results showed that the total solar radiation and direct radiation presented an increasingly growing trend were 29.69 MJ/(m2·a)and 20.25 MJ/(m2·a),respectively.Secondly,abrupt change of total radiation occurred in 2010,after which the average total solar radiation increased by 497.22 MJ/m2 compared with the year previous to the mutation.Moreover,the scattering coefficient showed a decreasing trend with 0.06/a.And the total solar radiation was positively significantly correlated with the highest temperature,evaporation and sunshine hours.For every 10 MJ/(m2·a)increase in total solar radiation,the annual maximum temperature would increase by 0.012℃,the annual sunshine duration would increase 1.7 hours and the evaporation amount would increase 1.2 mm.In terms of the factors contributing to the increase of solar radiation,the decrease of cloud amount played a major role.关键词
太阳辐射/变化特征/气候因子Key words
solar radiation/variation characteristics/climate factors分类
天文与地球科学引用本文复制引用
陈乐,贺南,王明田,王哲,郑丽英..成都市太阳辐射时间变化特征及对气候因子的影响[J].沙漠与绿洲气象,2023,17(6):154-160,7.基金项目
成都市气象局重点课题(2022-05) （2022-05）
