首页|Dual-Satellite Stereoscopic Retrieval of Cloud Top Height Using FY-4A and FY-4B
Dual-Satellite Stereoscopic Retrieval of Cloud Top Height Using FY-4A and FY-4B
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国家科技期刊平台
NETL
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We developed a dual-satellite stereoscopic cloud top height(CTH)retrieval algorithm based on the visible band(0.65 pm)data of Fengyun-4A(FY-4A)and FY-4B.This algorithm offers an extensive longitude coverage from 55°E to 177°W.The analysis of system error based on error theory shows that the CTH we retrieved has an accuracy of 0.20-0.88 km and an uncertainty of 0.24-1.08 km over the entire area.The space resolution of the CTH we retrieved reached less than 0.005°.We conducted a CTH retrieval experiment and proceeded to compare our results with FY-4B's CTH product and the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations(CALIPSO).Com-pared to CALIPSO,the CTH we retrieved has a bias of-2.4 km and the correlation coefficient is 0.80.In general,two next-generation geostationary satellites were used simultaneously to retrieve the CTH in our study,demonstrat-ing the ability of this satellite combination to obtain better-quality CTH products by stereoscopic retrieval.
cloud top height(CTH)geostationary satellitesstereoscopicFengyun-4
Xiaotong HUANG、Yilun CHEN、Puxi LI
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Key Laboratory of Tropical Atmosphere-Ocean System of Ministry of Education,School of Atmospheric Sciences,Sun Yat-sen University,Zhuhai 519080
Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519080
State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Sciences,China Meteorological Administration,Beijing 100081
国家科技期刊平台
NSTL
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