WORKING PAPER 130 A Review of Methods of Hydrological Estimation at Ungauged Sites in India Ramakar Jha and Vladimir Smakhtin Postal Address P O Box 2075 Colombo Sri Lanka Location 127, Sunil Mawatha Pelawatta Battaramulla Sri Lanka Telephone +94-11 2880000 Fax +94-11 2786854 E-mail
[email protected] Website http://www.iwmi.org SM International International Water Management IWMI isaFuture Harvest Center Water Management Institute supportedby the CGIAR ISBN: 978-92-9090-693-3 Institute Working Paper 130 A Review of Methods of Hydrological Estimation at Ungauged Sites in India Ramakar Jha and Vladimir Smakhtin International Water Management Institute IWMI receives its principal funding from 58 governments, private foundations and international and regional organizations known as the Consultative Group on International Agricultural Research (CGIAR). Support is also given by the Governments of Ghana, Pakistan, South Africa, Sri Lanka and Thailand. The authors: Ramakar Jha is a Research Scientist at the National Institute of Hydrology (NIH), Roorkee, India. Vladimir Smakhtin is Principal Scientist in Hydrology and Water Resources at the International Water Management Institute (IWMI), Colombo, Sri Lanka. Jha, R.; Smakhtin, V. 2008. A review of methods of hydrological estimation at ungauged sites in India. Colombo, Sri Lanka: International Water Management Institute. 24p. (IWMI Working Paper 130) / hydrology / models / river basins / runoff / flow / low flows/ flow duration curves/ estimation / flooding /unit hydrograph/ungauged basins/ India / ISBN 978-92-9090-693-3 Copyright © 2008, by IWMI. All rights reserved. Please direct inquiries and comments to:
[email protected] ii Contents Summary ................................................................................................................................ v Introduction ................................................................................................................................ 1 Estimating Low Flows and Duration Curves at Ungauged Sites ..............................................