authors Kulawardhana, R. W. Thenkabail, P. S. Vithanage, J. Biradar, Chandrashekhar Islam, Md. A. Gunasinghe, Sarath Alankara, Ranjith D
has subject area cartography data drainage basin evaluation false color geography image display landsat methods normalized difference vegetation index remote sensing shuttle radar topography mission two band vegetation wetland