Hydrologic system response models for hilly sub-catchments of a river

ISBN-13: 9783838371894 / Angielski / Miękka / 2010 / 100 str.

Pro (Indian Institute of Technology Kanpur India Anil Kumar

Opis

The geomorphologic instantaneous unit hydrographs (GIUH) were developed to predict the direct runoff hydrograph from two hilly sub-watersheds of Ramganga catchment in Uttarakhand State of India. Based on the kinematic-wave theory, the topographic characteristics and Hortons stream-order-law ratios for the watersheds, the travel times for overland and stream-flows in a stream-ordering system of the watershed were analytically and probabilistically determined to develop the GIUH. The two-parameter Gamma-type model was also used to develop the GIUH for these watersheds. The performance of the developed models was evaluated by comparing the predicted and observed direct runoff hydrographs for the storm events occurring in the watershed. As the development of this model needs only the geomorphologic parameters of the watershed, this model could be applicable to any ungauged or partially gauged hilly watershed with reasonably good accuracy.

O autorze

The author is a Professor of Soil and Water Conservation Engineering with G.B.Pant University of Agriculture and Technology, Pantnagar, India. He is involved with teaching and research for more than 25 years in the field of Soil and Water Conservation Engineering, Hydrology, and Watershed Management, in the Indian Central Himalayan region.