干旱区生态环境知识资源中心(Arid): Selection and Characterization of Glaciers on the Tibetan Plateau as Potential Pseudoinvariant Calibration Sites

Arid

DOI	10.1109/JSTARS.2018.2890672
	Selection and Characterization of Glaciers on the Tibetan Plateau as Potential Pseudoinvariant Calibration Sites
	Wang Ling 1,2,3; Hu Xiuqing 1,2; Luo Yupeng 4; Liu Zhizhao 3,5; Min Min 1,2
通讯作者	Hu Xiuqing
来源期刊	IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
ISSN	1939-1404
EISSN	2151-1535
出版年	2019
卷号	12 期号:2 页码:424-436
英文摘要	Vicarious calibration using pseudoinvariant calibration sites (PICS) has become increasingly popular, as it is the most cost-effective method for on-orbit calibration of space-borne optical sensors. Glaciers on the Tibetan Plateau (TP) are located at more than 4500 m above sea level. These snow targets, exhibiting much brighter reflectance and less affected by aerosol and water vapor than desert targets, can help to reduce the uncertainties associated with vicarious calibration. In contrast to polar snow, the TP is not limited by polar night, thus ensuring continuous calibration monitoring. This study investigated the potential role of TP glaciers as PICS for the first time. To accomplish this, the coefficient of variation (CV) was applied to characterize the spatial uniformity and temporal stability of five relatively larger and flatter TP glaciers based on several independent Landsat Thematic Mapper and Operational Land Imager datasets over 20 years. The criteria of CV < 3% (both spatial and temporal) through Landsat visible and near-infrared channels were used to identify potential PICS across the candidate glaciers. Finally, three snow PICS with areas of at least 7.2 km(2) and two snow PICS with areas of 1.2-2.1 km(2) were identified. The area of the snow PICS is smaller in autumn and winter due to the snow cover. The feasibility of using these sites for long-term calibration monitoring of satellite sensors is also discussed. Results indicate that although the snow PICS exhibits stronger BRDF than the invariant desert target, the MODIS calibration trends detected from snow PICS are comparable to those from the desert target.
英文关键词	Calibration remote sensing snow stability
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000460663600004
WOS关键词	AVHRR VISIBLE CHANNEL ; ABSOLUTE CALIBRATION ; REFLECTANCE ; DEGRADATION ; RADIOMETER ; STABILITY ; SURFACE ; NOAA-9 ; DESERT ; SNOW
WOS类目	Engineering, Electrical & Electronic ; Geography, Physical ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Engineering ; Physical Geography ; Remote Sensing ; Imaging Science & Photographic Technology
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216246
作者单位	1.China Meteorol Adm, Key Lab Radiometr Calibrat & Validat Environm Sat, Beijing 100081, Peoples R China; 2.China Meteorol Adm, Natl Satellite Meteorol Ctr, Beijing 100081, Peoples R China; 3.Hong Kong Polytech Univ, Dept Land Surveying & Geoinformat, Hong Kong, Peoples R China; 4.Natl Inst Metrol, Beijing 100013, Peoples R China; 5.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Inst, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Wang Ling,Hu Xiuqing,Luo Yupeng,et al. Selection and Characterization of Glaciers on the Tibetan Plateau as Potential Pseudoinvariant Calibration Sites[J]. 中国科学院西北生态环境资源研究院,2019,12(2):424-436.
APA	Wang Ling,Hu Xiuqing,Luo Yupeng,Liu Zhizhao,&Min Min.(2019).Selection and Characterization of Glaciers on the Tibetan Plateau as Potential Pseudoinvariant Calibration Sites.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,12(2),424-436.
MLA	Wang Ling,et al."Selection and Characterization of Glaciers on the Tibetan Plateau as Potential Pseudoinvariant Calibration Sites".IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 12.2(2019):424-436.