Abstract:
Representative basins are basins, which are selected as representative of a hydrological region within which hydrological similarity is presumed. They are used for intensive investigation of specific problems of the hydrological cycle. A representative basin takes the more specific role representing a broad area to which the data can be transferred. Hard rocks (crystalline rocks) such as granites, gneisses, basalt, and indurated pre-Cambrian sediments cover approximately 75 per cent of the total area of the Inds Due to the complex nature of the hard rock region, it is quite necessary to have a through study of the hydrological problems existing in this region However, it is impossible to cover whole area at a stretch, therefore it is decided to select two representative basins in this region for extensive research. For this purpose, the Hard Rock Regional Center, in consultation with the State and other Central Govt. Departments selected Malaprabha catchment upto Khanapur and Ghataprabha catchment upto Daddi as a Representative Basins.
During the thirteen years of establishment of Hard Rock Regional Centre of National Institute of Hydrology, a nos. of hydrological studies has been carried out in the Malaprabha and Ghataprabha Representative Basins. Therefore, in the meeting of Regional Co-ordination Committee, which comprises of the field engineers from different State/Central Government organisations within the region, it is decided to carry out the comprehensive studies for these expeninental representative basins, in order to standardize and develop the methodologies for providing solutions for understanding and solving various hydroloOcal problems of the entire hard rock region.
In present report, an effort has been made to compile the studies on various hydrological problems call led out so fax in these representative basins. This report has been compiled by Mr. Dilip G. Durbude, Scientist 13, and assisted by Mr. P. R. S. Rao under the guidance of Mr. C. P. Kumar, Scientist 'El' and Head, Regional Center, National Institute of Hydrology. Belgaurn. I hope that the conclusions brought out in this report will be useful for the user agencies. It is expected that this document would prove to be very good reference source for academic community as well as field engineers dealing the above problems in the hard rock region
