干旱区生态环境知识资源中心(Arid): A Cloud Detection Scheme for the Chinese Carbon Dioxide Observation Satellite (TANSAT)

Arid

	A Cloud Detection Scheme for the Chinese Carbon Dioxide Observation Satellite (TANSAT)
	Wang Xi; Guo Zheng; Huang Yipeng; Fan Hongjie; Li Wanbiao
来源期刊	Advances in Atmospheric Sciences
ISSN	0256-1530
出版年	2017
卷号	34 期号:1 页码:16-25
英文摘要	Cloud detection is an essential preprocessing step for retrieving carbon dioxide from satellite observations of reflected sunlight. During the pre-launch study of the Chinese Carbon Dioxide Observation Satellite (TANSAT), a cloud-screening scheme was presented for the Cloud and Aerosol Polarization Imager (CAPI), which only performs measurements in five channels located in the visible to near-infrared regions of the spectrum. The scheme for CAPI, based on previous cloudscreening algorithms, defines a method to regroup individual threshold tests for each pixel in a scene according to the derived clear confidence level. This scheme is proven to be more e ective for sensors with few channels. The work relies upon the radiance data from the Visible and Infrared Radiometer (VIRR) onboard the Chinese FengYun-3A Polar-orbiting Meteorological Satellite (FY-3A), which uses four wavebands similar to that of CAPI and can serve as a proxy for its measurements. The scheme has been applied to a number of the VIRR scenes over four target areas (desert, snow, ocean, forest) for all seasons. To assess the screening results, comparisons against the cloud-screening product from MODIS are made. The evaluation suggests that the proposed scheme inherits the advantages of schemes described in previous publications and shows improved cloud-screening results. A seasonal analysis reveals that this scheme provides better performance during warmer seasons, except for observations over oceans, where results are much better in colder seasons.
英文关键词	TANSAT CAPI cloud detection regrouping scheme
类型	Article
语种	英语
开放获取类型	Other Gold
收录类别	CSCD
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:5896641
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335742
作者单位	Wang Xi, Laboratory for Climate and Ocean-Atmosphere Studies, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing 100871, China.; Huang Yipeng, Laboratory for Climate and Ocean-Atmosphere Studies, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing 100871, China.; Fan Hongjie, Laboratory for Climate and Ocean-Atmosphere Studies, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing 100871, China.; Li Wanbiao, Laboratory for Climate and Ocean-Atmosphere Studies, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing 100871, China.; Guo Zheng, National Satellite Meteorological Center, China Meteorological Administration, Beijing 100081, China.
推荐引用方式 GB/T 7714	Wang Xi,Guo Zheng,Huang Yipeng,et al. A Cloud Detection Scheme for the Chinese Carbon Dioxide Observation Satellite (TANSAT)[J],2017,34(1):16-25.
APA	Wang Xi,Guo Zheng,Huang Yipeng,Fan Hongjie,&Li Wanbiao.(2017).A Cloud Detection Scheme for the Chinese Carbon Dioxide Observation Satellite (TANSAT).Advances in Atmospheric Sciences,34(1),16-25.
MLA	Wang Xi,et al."A Cloud Detection Scheme for the Chinese Carbon Dioxide Observation Satellite (TANSAT)".Advances in Atmospheric Sciences 34.1(2017):16-25.