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Navalgund, R.R. and Ray, S.S. (2000) Geomatics in Natural Resources Management. Proceedings of Geomatics-2000, Pune, NR-1-14.

has been cited by the following article:

  • TITLE: Irrigation Demand VS Supply-Remote Sensing and GIS Approach

    AUTHORS: Ch. Ramesh Naidu, M. V. S. S. Giridhar

    KEYWORDS: GIS, Water Users Association, Evapo-Transpiration, Remote Sensing, Irrigation

    JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.4 No.1, January 8, 2016

    ABSTRACT: To determine the irrigation requirements of rice crop on different soils, an integrated approach is used using Remote Sensing and GIS techniques. Depending on the type of soil, climate and the crop acreage, the water requirement for paddy fields is derived. This study is focused on estimating the water demand for rice crop in Rabi season. Crop evapo-transpiration and soil percolation losses account more in rice fields especially in hot climate like Rabi season. In addition to evapo-transpiration and percolation losses, the conveyance losses are also accountable in the case of unlined canals. Satellite data is used to estimate the rice and fallow lands. In conjunction to satellite interpreted data, climate and soil data are also integrated in GIS platform. CROPWAT model is used to determine the crop evapo-transpiration (ETc). There are 11 Water User’s Associations (WUA) in the command area and under which 13 canal blocks are delineated. These blocks are again delineated in to 212 sub blocks. This study indicates that there exists a 5% to 20% of water deficiency in some WUAs and also water surplus in some WUAs varying from 15% to 40%.