热带气象学报2024，Vol.40Issue(3)：389-396,8.DOI:10.16032/j.issn.1004-4965.2024.035
FY-4B与FY-4A云顶性质产品精度的一致性评估
Consistency of the Accuracy of FY-4B and FY-4A Cloud Top Products
摘要
Abstract
The FengYun-4(FY-4)meteorological satellite is the second generation of China's geostationary meteorological satellite.FY-4B satellite utilizes identical algorithms as its predecessor,FY-4A,for retrieving cloud top temperature,height,and pressure.To facilitate the application of FY-4B cloud top products,this paper evaluated the consistency of the accuracy of the cloud top retrievals from FY-4A and FY-4B,and compared them with those from the EOS/MODIS polar-orbiting meteorological satellite of the United States and Himawari-8,Japan's second-generation geostationary meteorological satellite.The results show that the cloud top retrievals from FY-4B exhibited good consistency with those from FY-4A.The larger error in FY-4B's classification of multi-layer clouds mainly arose from the misclassification of cirrus clouds into multi-layer clouds.The validation results of the whole sample show that the accuracy of FY-4B cloud top retrievals is consistent with that of FY-4A.The discrepancies between them are primarily attributed to the variations in channel spectral characteristics,calibration accuracy,and the difference in the radiative transfer model used.关键词
FY4/云顶温度/云顶高度/云顶压强/精度检验Key words
FY-4/cloud-top temperature/cloud-top height/cloud-top pressure/accuracy validation分类
天文与地球科学引用本文复制引用
张淼,徐娜,陈林,刘健,杨昌军..FY-4B与FY-4A云顶性质产品精度的一致性评估[J].热带气象学报,2024,40(3):389-396,8.基金项目
国家重点研发计划项目(2023YFB3905305) （2023YFB3905305）
第二次青藏高原科学考察研究项目(2019QZFKO105)共同资助 （2019QZFKO105）
