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	Comparison of methods of snow cover mapping by analysing the solar spectrum of satellite remote sensing data in China
	Wang, J; Li, W
刊名	INTERNATIONAL JOURNAL OF REMOTE SENSING
	2003-11-01
卷号	24期号:21页码:4129-4136
ISSN号	0143-1161
DOI	10.1080/0143116031000070409
通讯作者	Wang, J()
英文摘要	Three methods, supervised classification (SC), digital number (DN) statistics and Normalized Difference Snow Index (NDSI), are used to map snow cover and then calculate snow cover area. Data sets from Landsat TM, Moderate Resolution Imaging Spectroradiometer (MODIS) and NOAA/ AVHRR are selected because these sensors of different spatial resolution provide the most up to date remote sensing data for China. The results show that the best method for obtaining the snow index is different for each of these sensor products because of their different spatial and temporal resolutions and objectives of application. Reflectivity threshold statistics (RTs) should be used if the data series is incomplete; whereas SC needs a relatively accurate signature file for classification. A valid and rational method has been certified which selects NDSI for extracting snow pixels. Meanwhile, we introduce the brightness compensation method for decreasing the impact of topographic shading on distinguishing of snow pixels.
收录类别	SCI
WOS研究方向	Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000186177900005
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2556832
专题	寒区旱区环境与工程研究所
通讯作者	Wang, J
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, J,Li, W. Comparison of methods of snow cover mapping by analysing the solar spectrum of satellite remote sensing data in China[J]. INTERNATIONAL JOURNAL OF REMOTE SENSING,2003,24(21):4129-4136.
APA	Wang, J,&Li, W.(2003).Comparison of methods of snow cover mapping by analysing the solar spectrum of satellite remote sensing data in China.INTERNATIONAL JOURNAL OF REMOTE SENSING,24(21),4129-4136.
MLA	Wang, J,et al."Comparison of methods of snow cover mapping by analysing the solar spectrum of satellite remote sensing data in China".INTERNATIONAL JOURNAL OF REMOTE SENSING 24.21(2003):4129-4136.

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