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Depth is an essential characteristic of flood inundation in hydro-ecological research. Several studies have tried to estimate inundation depth from remotely sensed image and digital elevation model (DEM) data by applying a series of cross section profiles along the centerline of a river reach. This method requires a large amount of manual work in order to identify the centerlines and cross sections,...
A new index mode for extraction of water body with HJ-1 satellite CCD imagery - Normalized Difference of RVI and NDWI(NDRW) which combined both RVI and NDWI values is purposed in this paper based on analyzing the spectral characteristics of water in HJ-1 satellite CCD imagery and the advantages and disadvantages of three the most frequently used indexes, which are Ratio Vegetation Index(RVI), Normalized...
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