Home > Archives > IJSRST151548 IJSRST-Library

Sensitivity of Initial Abstraction Coefficient on Prediction of Rainfall-Runoff for Various Land Cover Classes of 'Ton Watershed' Using Remote Sensing & GIS Based 'Rinspe' Model

Authors(1) :-Narasayya Kamuju

Rainfall, Runoff, Infiltration are most important parameters in water balance equation of any hydrological problems. Among these parameters the real prediction of surface runoff is the crucial task. Many hydrologic models are available to estimate surface runoff from precipitation data. The development of a GIS based model that would make it possible to assess the surface runoff accurately and efficiently. On the basis of this requirement a model called  ‘Runoff, Infiltration and Nonpoint Source Pollution Estimation’ (RINSPE) was developed for estimating runoff, infiltration and nonpoint source pollution in the Ton river catchment based on the different land cover type distribution within the catchment. The Curve Number method for estimating direct runoff from rainstorms is now widely used in engineering design, post-event appraisals, and environmental impact estimation. In the present investigation the Initial Abstraction coefficient in the Curve Number method considered with 2 different scenarios by assuming ‘λ’ value as 0.2 for general conditions and 0.3 for Indian conditions to run RINSPE model. The results reveal that the surface runoff of 860.79 mm occurred with a loss of 62.93 mm in the form of infiltration for scenarios: 1. The most occupied area in the Ton watershed is forest which is having a runoff of 656 mm with 124mm infiltration and a very slight variation in prediction of runoff and infiltration for scenario: 2 for the same land cover classes. In the present study the results reveals that ‘λ’ value is 0.2 of Ia gave minute higher runoff values than ‘λ’ value with 0.3. This experimental investigation makes sure that, higher the initial abstraction lowers the runoff and vice versa.
Narasayya Kamuju
RINSPE, Initial Abstarction, precipitation, Runoff, Soil texture, Initial Loss
  1. Abraham Thaomas, Wisemen Chingombe, 2009, ‘A Comprehensive investigation of the kils-Erste River catchment Water Pollution and Development of a Catchment Sustainability Plan’, WRC Project No K5/1692, Department of Earth Sciences, University of the Western Cape, South Africa.
  2. Kalpana O. Bhaware,2006, ‘Soil  Erosion Risk Modelling and Current Erosion Damage Assessment Using Remote  Sensing and GIS Technique’ M.Tech Thesis, IIRS, Dehradun, India
  3. K.Subramanya text book on “Engineering Hydrology” third edition- TATA McGraw-Hill, New Delhi publication 2011
  4. N.Omani et al, 2007. Modelling of a river basin using SWAT model and GIS. Accepted to be published in 7th International River Management Conference Kuching, Malaysia 4th International SWAT Conference,
  5. NRCS Small Watershed Hydrology 2009, Win TR-55 User Guide.
  6. Pidwirny, M. (2006). "Introduction to Surface Runoff". Fundamentals of Physical Geography, 2nd Edition. Date Viewed.13/11/08 http://www.physicalgeography.net/fundamentals/8n.html.
  7. Thomas, Abraham, 2001. A Geographic Information System Methodology For Modelling Urban Groundwater Recharge And Pollution. Ph. D. Thesis. The School of Earth Sciences, The University of Birmingham, Birmingham, United Kingdom.
  8. Thomas, A. and Tellam, J.H. 2004. Development of an ArcView GIS Based Petrol Station BTEX Pollution Model for Assessing Groundwater Pollution from Small Scale Petrol Spills. Proceedings of 32nd International Geological Congress, Florence, Italy (Aug 20 - 28, 2004). Abstract Vol., Part 1, Abstract 98-16, p. 437.
  9. Thomas, A. and Tellam, J.H. 2005. Development of A GIS Model For Assessing Groundwater Pollution From Small Scale Petrol Spills. Paper accepted for publishing in the Matthias Eiswirth Memorial Volume- the proceeding of the 32nd International Geological Congress held at Florence, Italy, August 20-28, 2004.
  10. Tindall, James A., and Kunkel, James R. 1999. Unsaturated Zone Hydrology for Scientists and Engineers. Prentice-Hall, Inc.
  11. US EPA, 1993. Natural Wetlands and Urban Stormwater: Potential Impacts and Management. Office of Wetlands, Oceans and Watersheds Wetlands Division, United States Environmental Protection Agency, Washington, D.C. http://www.epa.gov/OWOW/wetlands/stormwat.pdf
  12. US EPA, 1998a. Estimation of Infiltration Rate in the Vadose Zone: Compilation of Simple Mathematical Models. Volume I. EPA/600/R-87/128a, February 1998. United States Environmental Protection Agency.
  13. US EPA, 1998b. Estimation of Infiltration Rate in the Vadose Zone: Application of Selected Mathematical Models. Volume II. EPA/600/R-87/128b, February 1998. United States Environmental Protection Agency.
Publication Details
  Published in : Volume 1 | Issue 5 | November-December 2015
  Date of Publication : 2015-12-31
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 213-221
Manuscript Number : IJSRST151548
Publisher : Technoscience Academy
PRINT ISSN : 2395-6011
ONLINE ISSN : 2395-602X
Cite This Article :
Narasayya Kamuju, "Sensitivity of Initial Abstraction Coefficient on Prediction of Rainfall-Runoff for Various Land Cover Classes of 'Ton Watershed' Using Remote Sensing & GIS Based 'Rinspe' Model", International Journal of Scientific Research in Science and Technology(IJSRST), Print ISSN : 2395-6011, Online ISSN : 2395-602X, Volume 1, Issue 5, pp.213-221, November-December-2015
URL : http://ijsrst.com/IJSRST151548