气候变化领域集成服务门户(CCPortal): Can the Depth of Seasonal Snow be Estimated From ICESat-2 Products: A Case Investigation in Altay, Northwest China

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DOI	10.1109/LGRS.2021.3078805
	Can the Depth of Seasonal Snow be Estimated From ICESat-2 Products: A Case Investigation in Altay, Northwest China
	Hu, Xiaojing; Hao, Xiaohua; Wang, Jian; Huang, Guanghui; Li, Hongyi; Yang, Qian
通讯作者	Hao, XH (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China.
发表日期	2022
ISSN	1545-598X
EISSN	1558-0571
卷号	19
英文摘要	Snow depth (SD) is an indispensable parameter for many studies. Launched in 2018, the Ice, Cloud and land Elevation Satellite-2 (ICESat-2) is designed to obtain global glacial elevations, but it can also acquire canopy and terrain elevations. Whether the depth of seasonal snow can be estimated by directly comparing the difference in elevations in snow-cover and snow-free cases, many people may reasonably ask. In this letter, we conduct such an investigation in Altay, Northwest China, using ICESat-2 ATL08 elevation products. Our investigation suggests: 1) in mountainous areas, the answer maybe is no because the estimation is obviously affected by rugged topography; 2) but in flat regions, SDs have been effectively estimated. (The R-2 is up to 0.88 between estimates and ground measurements.); and 3) as expected, land-cover types also affect the accuracy of the results, and the best estimation happens over the type of hare land. Therefore, estimating the depth of seasonal snow from the ICESat-2 product may be feasible, but we must check the results carefully.
关键词	LASER ALTIMETRY ACCUMULATION LAND ICE
英文关键词	Elevations; Ice; Cloud and land Elevation Satellite-2 (ICESat-2); satellite; seasonal snow; snow depth (SD)
语种	英语
WOS研究方向	Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Geochemistry & Geophysics ; Engineering, Electrical & Electronic ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000730789400116
来源期刊	IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253621
作者单位	[Hu, Xiaojing; Hao, Xiaohua; Wang, Jian; Huang, Guanghui; Li, Hongyi; Yang, Qian] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China; [Hu, Xiaojing] Lanzhou Jiaotong Univ, Fac Geomat, Lanzhou 730070, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Hu, Xiaojing,Hao, Xiaohua,Wang, Jian,et al. Can the Depth of Seasonal Snow be Estimated From ICESat-2 Products: A Case Investigation in Altay, Northwest China[J]. 中国科学院西北生态环境资源研究院,2022,19.
APA	Hu, Xiaojing,Hao, Xiaohua,Wang, Jian,Huang, Guanghui,Li, Hongyi,&Yang, Qian.(2022).Can the Depth of Seasonal Snow be Estimated From ICESat-2 Products: A Case Investigation in Altay, Northwest China.IEEE GEOSCIENCE AND REMOTE SENSING LETTERS,19.
MLA	Hu, Xiaojing,et al."Can the Depth of Seasonal Snow be Estimated From ICESat-2 Products: A Case Investigation in Altay, Northwest China".IEEE GEOSCIENCE AND REMOTE SENSING LETTERS 19(2022).