http://117.252.14.250:8080/jspui/handle/123456789/3453 Sun, 08 Feb 2026 06:32:37 GMT 2026-02-08T06:32:37Z http://117.252.14.250:8080/jspui/handle/123456789/3466 Title: Contents Authors: National Institute of Hydrology Tue, 01 Jan 1991 00:00:00 GMT http://117.252.14.250:8080/jspui/handle/123456789/3466 1991-01-01T00:00:00Z http://117.252.14.250:8080/jspui/handle/123456789/3465 Title: Preface Authors: Chandra, Satish Tue, 01 Jan 1991 00:00:00 GMT http://117.252.14.250:8080/jspui/handle/123456789/3465 1991-01-01T00:00:00Z http://117.252.14.250:8080/jspui/handle/123456789/3464 Title: 1-Chapter-I-Hydrologic system Authors: Seth, S. M. Abstract: Any phenomena which undergoes continuous changes particularly with respect to time may be called a process.As particularly all hydrologic phenomena change with time, they are hydrologic processes. Hydrologic models are mathematical formulations to simulate natural hydrologic phenomena which are considered as processes or as systems.The hydrologic processes and their models can be divided into two broad classes. Tue, 01 Jan 1991 00:00:00 GMT http://117.252.14.250:8080/jspui/handle/123456789/3464 1991-01-01T00:00:00Z http://117.252.14.250:8080/jspui/handle/123456789/3463 Title: 2-Chapter-II-Data for hydrological analysis Authors: Ramasastri, K. S.; Haque, M. E.; Ghosh, N. C.; Kumar, Rakesh Abstract: In the expanding modern economy, exploitation of natural resources if of primary importance. As water is one of the main natrual resource, extensive efforts are being made in every country to harness the water potential for the benefit of the people. For economic and optimum utilisation, planning, design and development of water resources, determination of the extent and availability of surface and groundwater is the first requisite and this in turn requires readily accessible, reliable and adequate observation data on the elements of hydrological cycle and related factors. Long term hydrological and meteorological data and information about physical characteristics of watersheds provide the basis for all hydrological studies as well as development and management of water resources. Further, variations in climatic characteristics both in space and time lead to uneven distribution of precipitation in our country. This uneven distribution causes highly uneven distribution of available water, which leads to floods and droughts. As the hydrological processes are continuous and quitp complex, therefore, an accurate assessment of quantities of water simultaneously passisng through all these phases becomes quite a difficult task. Tue, 01 Jan 1991 00:00:00 GMT http://117.252.14.250:8080/jspui/handle/123456789/3463 1991-01-01T00:00:00Z