沙漠与绿洲气象2024，Vol.18Issue(1)：134-140,7.DOI:10.12057/j.issn.1002-0799.2024.01.017
FY-4A辐射产品在贵州山区的检验与订正
Verification and Correction of FY-4A Solar Radiation Products in Guizhou Mountainous Areas
摘要
Abstract
Based on the ground solar irradiance observation data of national meteorological stations(Congjiang,Sansui,Tongzi,Guiyang,Ziyun,Xingren and Weining stations)in the Guizhou mountainous areas from March 12,2018 to February 28,2019,this study tried to verify and correct the accuracy of FY-4A surface solar irradiance(SSI)products.The results show that:(1)The range of FY-4A SSI value is smaller than that of the ground observations.On average,the FY-4A SSI of each station is higher than that of ground observations,and the accuracy under clear sky conditions is much higher than that under cloudy conditions.The deviation is the smallest at noon and the largest in the afternoon.(2)The FY-4A SSI and the ground observed SSI have relatively consistent diurnal and seasonal variations.There is a significant positive correlation between the two,and the correlation coefficient is negatively correlated with altitude.(3)The average deviation tends to decrease with the increase of ground observation.When the ground observed SSI is greater than 800 W·m-2,the FY-4A SSI tends to be lower than that of ground observation.(4)After thresholding the ground observed SSI,the FY-4A SSI is corrected using multiple linear regression.The corrected product has good applicability in Guizhou.关键词
地面入射太阳辐照度/贵州山区/检验/FY-4A/多元线性回归Key words
ground solar irradiance/Guizhou mountainous areas/verification/FY-4A/multiple linear regression分类
天文与地球科学引用本文复制引用
杨帆,罗敬,张东海,何东坡,曾莉萍,吴古会..FY-4A辐射产品在贵州山区的检验与订正[J].沙漠与绿洲气象,2024,18(1):134-140,7.基金项目
2021年度泛珠三角科技创新开放基金项目(FZSJ202107) （FZSJ202107）
2022年度贵州省山地气候与资源重点实验室基金项目(QHLQLJ[2022]-03) （QHLQLJ[2022]-03）
