干旱区生态环境知识资源中心(Arid): Cloud-Top Height Comparison from Multi-Satellite Sensors and Ground-Based Cloud Radar over SACOL Site

Arid

DOI	10.3390/rs13142715
	Cloud-Top Height Comparison from Multi-Satellite Sensors and Ground-Based Cloud Radar over SACOL Site
	Yang, Xuan; Ge, Jinming; Hu, Xiaoyu; Wang, Meihua; Han, Zihang
通讯作者	Ge, JM (corresponding author), Lanzhou Univ, Key Lab Semiarid Climate Change, Minist Educ, Lanzhou 730000, Peoples R China.
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2021
卷号	13 期号:14
英文摘要	Cloud-top heights (CTH), as one of the representative variables reflecting cloud macro-physical properties, affect the Earth-atmosphere system through radiation budget, water cycle, and atmospheric circulation. This study compares the CTH from passive- and active-spaceborne sensors with ground-based Ka-band zenith radar (KAZR) observations at the Semi-Arid Climate and Environment Observatory of Lanzhou University (SACOL) site for the period 2013-2019. A series of fundamental statistics on cloud probability in different limited time and areas at the SACOL site reveals that there is an optimal agreement for both cloud frequency and fraction derived from space and surface observations in a 0.5 degrees x 0.5 degrees box area and a 40-min time window. Based on the result, several facets of cloud fraction (CF), cloud overlapping, seasonal variation, and cloud geometrical depth (CGD) are investigated to evaluate the CTH retrieval accuracy of different observing sensors. Analysis shows that the CTH differences between multi-satellite sensors and KAZR decrease with increasing CF and CGD, significantly for passive satellite sensors in non-overlapping clouds. Regarding passive satellite sensors, e.g., Moderate Resolution Imaging Spectroradiometer (MODIS) on Terra and Aqua, the Multi-angle Imaging SpectroRadiometer (MISR) on Terra, and the Advanced Himawari Imager on Himawari-8 (HW8), a greater CTH frequency difference exists between the upper and lower altitude range, and they retrieve lower CTH than KAZR on average. The CTH accuracy of HW8 and MISR are susceptible to inhomogeneous clouds, which can be reduced by controlling the increase of CF. Besides, the CTH from active satellite sensors, e.g., Cloud Profiling Radar (CPR) on CloudSat, and Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) onboard Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO), agree well with KAZR and are less affected by seasonal variation and inhomogeneous clouds. Only CALIPSO CTH is higher than KAZR CTH, mainly caused by the low-thin clouds, typically in overlapping clouds.
英文关键词	cloud-top heights multi-satellite sensors Ka-band zenith radar cloud layer category seasonal variation cloud geometrical depth
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000677011100001
WOS关键词	A-TRAIN ; RADIATIVE PROPERTIES ; MIDLATITUDE CIRRUS ; MODIS ; MISR ; CLIMATE ; CALIPSO ; ARM ; RETRIEVALS ; INSIGHTS
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368640
作者单位	[Ge, Jinming] Lanzhou Univ, Key Lab Semiarid Climate Change, Minist Educ, Lanzhou 730000, Peoples R China; Lanzhou Univ, Coll Atmospher Sci, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Yang, Xuan,Ge, Jinming,Hu, Xiaoyu,et al. Cloud-Top Height Comparison from Multi-Satellite Sensors and Ground-Based Cloud Radar over SACOL Site[J]. 兰州大学,2021,13(14).
APA	Yang, Xuan,Ge, Jinming,Hu, Xiaoyu,Wang, Meihua,&Han, Zihang.(2021).Cloud-Top Height Comparison from Multi-Satellite Sensors and Ground-Based Cloud Radar over SACOL Site.REMOTE SENSING,13(14).
MLA	Yang, Xuan,et al."Cloud-Top Height Comparison from Multi-Satellite Sensors and Ground-Based Cloud Radar over SACOL Site".REMOTE SENSING 13.14(2021).