气象与环境学报2025，Vol.41Issue(2)：20-29,10.DOI:10.3969/j.issn.1673-503X.2025.02.003
1993-2022年沈阳市太阳辐射变化特征及其与气象因素的关系分析
Characteristics of solar radiation changes in Shenyang from 1993 to 2022 and analysis of their relationship with meteorological factors
摘要
Abstract
Using solar radiation and conventional meteorological observation data from the Shenyang national mete-orological station between 1993 and 2022,this study analyzes the changes in solar radiation and its relationship with meteorological factors in this region.The results show that both the annual total radiation and direct radiation in Shenyang have shown continuously increasing,with climate inclination rates of 237 MJ·m-2·(10 a)-1 and 349 MJ·m-2·(10 a)-1,respectively.The diffuse radiation is negatively correlated with both total radiation and di-rect radiation,with a climate inclination rate of-112 MJ·m-2·(10 a)-1.From 1993 to 2022,the total solar energy resource level in Shenyang increased from abundant to very abundant,and the direct radiation ratio level changed from high/medium to very high.Total radiation and direct radiation showed good correlations with sunshine per-centage,relative humidity,and haze days at both annual and monthly scales.From 2013 to 2022,Shenyang had the highest sunshine percentage,lowest relative humidity,and fewest haze days during the 1993-2022 period.The com-bined effect of these three meteorological factors likely contributed to the significant increase in annual total radia-tion and direct radiation,and the decrease in diffuse radiation in Shenyang over the past decade.Multiple linear re-gression models were established using annual total radiation and monthly atmospheric transparency coefficient as dependent variables and the three meteorological factors as independent variables.The validation results of these models in both Shenyang and Chaoyang passed significance tests,with correlation coefficients between simulated and measured values of annual and monthly total radiation exceeding 0.654 and 0.965,respectively,and simula-tion accuracies exceeding 92%and 90%.关键词
太阳能资源/日照百分率/相对湿度/霾日数/多元线性回归Key words
Solar energy resources/Sunshine percentage/Relative humidity/Haze days/Multiple linear regres-sion分类
天文与地球科学引用本文复制引用
朱玲,顾正强,龚强,李杨,王乙舒,崔妍,徐红,晁华..1993-2022年沈阳市太阳辐射变化特征及其与气象因素的关系分析[J].气象与环境学报,2025,41(2):20-29,10.基金项目
国家重点研发计划项目(2018YFB1501100)和辽宁省气象局核心攻关项目(LNCP202203、HXGGQ202402)共同资助. （2018YFB1501100）
