GPS Based Surveying for Mapping of Canal Alignment in GIS Environment - A Case Study of a Branch Canal of Alimineti Madhava Reddy Project, Nalgonda District, Andhra Pradesh, India

Much more challenging than that of groundwater is the improvement of performance of canal systems, which will remain the dominant water transfer technique in developing countries in the future. The standards used for design of irrigation canals in many countries have not kept up with the development of new technologies. Global Position Systems ( GPS) and Geographical Information System (GIS) integrated systems have emerged in the recent years as powerful tools in conducting large scale surveys for mapping and to create spatial data base of any Geographical area in any scale and integration of non-spatial information, modeling, analysis and generating statistical data according to the nature of application. This article employs spatial analysis techniques to extract the extent of land components of the individual owners/enjoyers which would be acquired by the Government for constructing the canal and to make the compensations against their land.