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Space-Time Variation in Rainfall and Runoff: Upper Betwa Catchment
Authors: Ritu Ahlawat
Abstract:Among all geo-hydrological relationships, rainfallrunoff relationship is of utmost importance in any hydrological investigation and water resource planning. Spatial variation, lag time involved in obtaining areal estimates for the basin as a whole can affect the parameterization in design stage as well as in planning stage. In conventional hydrological processing of data, spatial aspect is either ignored or interpolated at sub-basin level. Temporal variation when analysed for different stages can provide clues for its spatial effectiveness. The interplay of space-time variation at pixel level can provide better understanding of basin parameters. Sustenance of design structures for different return periods and their spatial auto-correlations should be studied at different geographical scales for better management and planning of water resources. In order to understand the relative effect of spatio-temporal variation in hydrological data network, a detailed geo-hydrological analysis of Betwa river catchment falling in Lower Yamuna Basin is presented in this paper. Moreover, the exact estimates about the availability of water in the Betwa river catchment, especially in the wake of recent Betwa-Ken linkage project, need thorough scientific investigation for better planning. Therefore, an attempt in this direction is made here to analyse the existing hydrological and meteorological data with the help of SPSS, GIS and MS-EXCEL software. A comparison of spatial and temporal correlations at subcatchment level in case of upper Betwa reaches has been made to demonstrate the representativeness of rain gauges. First, flows at different locations are used to derive correlation and regression coefficients. Then, long-term normal water yield estimates based on pixel-wise regression coefficients of rainfall-runoff relationship have been mapped. The areal values obtained from these maps can definitely improve upon estimates based on point-based extrapolations or areal interpolations.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1332104Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1816
 M. Sivapalan, et. al "IAHS decade of predictions in ungauged basins (PUB) 2003-12: Shaping the exciting future for hydrological sciences," Hydrological Sciences J., Vol. 48(6), pp. 857-880, 2003
 R.L. Hendrick, and G.H. Comer, "Space variations of precipitation and implications for rain-gauge network designing". J. of Hydrology, Vol 10, pp. 51-63, 1970.
 M.E. Moss, and M.R. Karlinger, "Surface water network design by regression analysis simulation," Water Resource Research, Vol. 10(3), pp. 427-433, 1974.
 M.E. Moss, and E.J. Gilroy, "Cost effective stream-gaging strategies for the lower Colorado river basin: The Blythe Field Office Operations," U.S. Geological Survey Open file Report, pp. 88-1048, 1980
 A.K. Bora and, D.C. Goswami "Designing an optimum rain-gauge network for estimating mean basin rainfall in the Dhansiri basin, North- East India," Geographical Review of India, Vol. 55(3), pp. 18-24, 1993.
 R. Prasad, Monitoring and Forecasting of Hydrological Parameters in the Mahanadi River Basin. Unpublished Ph.D. Thesis. Delhi: University of Delhi, Department of Geography, 1996.
 R. Ahlawat, Water Resource Potential and Utilisation in the Bundelkhand Region. Unpublished M. Phil Dissertation. University of Delhi: Department of Geography, 1999.
 Central Ground Water Board, Hydrological and Hydrochemical Data of National Hydrograph Network Stations in Uttar Pradesh, 1983. Lucknow; Government of India, Ministry of Irrigation and Planning, Department of Irrigation, Northern Region, 1985.
 P. Saxena, "Bundelkhand - A case study in hydrography and water resources," Transactions of the Indian Council of Geographers, Vol. 5, pp. 133-139, 1968.
 National Water Development Agency, Feasibility Report of Ken-Betwa Link Project. New Delhi: Ministry of Water Resources, Government of India, 1999, pp 1-142 (www. nwda.org)
 K. Chopra "The feasibility report of Ken-Betwa link project: An analysis of assumptions and methodology", in Y.K. Alagh, G. Pangare, and B. Gujja (eds.) Interlinking of Rivers in India - Overview and Ken-Betwa Link. New Delhi: Academic Foundation, 2006, pp. 81-102.
 R. Ahlawat, Hydrological Data Network Analysis for Water Resource Planning in Lower Yamuna Basin: A Case Study of Betwa River Catchment. Unpublished Ph.D. Thesis. University of Delhi: Department of Geography, 2006.