A Simple Enhanced Water Index (EWI) for Percent Surface Water Estimation Using Landsat Data

	A Simple Enhanced Water Index (EWI) for Percent Surface Water Estimation Using Landsat Data
	Wang, Shudong 1; Baig, Muhammad Hasan Ali 1; Zhang, Lifu 1; Jiang, Hailiang 1; Ji, Yuhe 1; Zhao, Hengqian 1; Tian, Jingguo 1
刊名	IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
	2015
卷号	8 期号:1 页码:96-105
关键词	Enhanced Water Index (EWI) Modified Normalized Difference Water Index (MNDWI) percent surface water estimation remote sensing of environment
通讯作者	Zhang, LF (reprint author), Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China.
英文摘要	To timely obtain accurate pixel water surface proportion information through remote sensing is extremely significant to the ecological restoration in inland river basins and for the precise management of water resources. In respect to the insufficient extraction of water surface proportion information present in pixels in most of the current water information models, a simple model Enhanced Water Index (EWI) based on Modified Normalized Difference Water Index (MNDWI) has been introduced. EWI, which is oriented toward the sub-pixel level analysis of water surface proportion mapping of inland river basin, has been put forward based on the analysis of typical spectral signatures such as desert, soil, and vegetation along with MNDWI in accordance with the Landsat TM band features. The analysis is done by using methods of pixel-based EWI value with different water proportions which are analyzed through the introduction of the linear hybrid simulation between the water body and the corresponding background. Lastly, the effect of EWI model has been tested in the medium and lower reaches of Tarim. The correction coefficient for sub-pixel level water surface proportion predicted by the EWI model and the experimental data is R-2 = 0.72. Results showed that the model was able to effectively extract the information about pixel water surface proportion in inland river basins. This study proves that EWI model has great potential in its application for water proportion mapping applications.
研究领域[WOS]	Engineering, Electrical & Electronic ; Geography, Physical ; Remote Sensing ; Imaging Science & Photographic Technology
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000349550400009
内容类型	期刊论文
源URL	[http://ir.ceode.ac.cn/handle/183411/38323]
专题	遥感与数字地球研究所_SCI/EI期刊论文_期刊论文
作者单位	1.[Wang, Shudong 2.Baig, Muhammad Hasan Ali 3.Zhang, Lifu 4.Zhao, Hengqian] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China 5.[Jiang, Hailiang] Peking Univ, Inst Remote Sensing & GIS, Beijing 100871, Peoples R China 6.[Ji, Yuhe] Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Wang, Shudong,Baig, Muhammad Hasan Ali,Zhang, Lifu,et al. A Simple Enhanced Water Index (EWI) for Percent Surface Water Estimation Using Landsat Data[J]. IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,2015,8(1):96-105.
APA	Wang, Shudong.,Baig, Muhammad Hasan Ali.,Zhang, Lifu.,Jiang, Hailiang.,Ji, Yuhe.,...&Tian, Jingguo.(2015).A Simple Enhanced Water Index (EWI) for Percent Surface Water Estimation Using Landsat Data.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,8(1),96-105.
MLA	Wang, Shudong,et al."A Simple Enhanced Water Index (EWI) for Percent Surface Water Estimation Using Landsat Data".IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 8.1(2015):96-105.