Adequacy of Nakagami- m Distribution Function to Derive GIUH

Nash and Clark based geomorphological instanteneous unit hydrograph (GIUH) approach proved its usefulness to compute the synthetic unit hydrograph (SUH) and in turn the direct surface runoff component for ungauged catchments. In recent development, two-parameter Weibull’s distribution, coupled with...

Full description

Saved in:
Bibliographic Details
Published in:Journal of hydrologic engineering 2009-10, Vol.14 (10), p.1070-1079
Main Authors: Sarkar, S, Goel, N. K, Mathur, B. S
Format: Article
Language:English
Subjects:
TECHNICAL PAPERS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Nash and Clark based geomorphological instanteneous unit hydrograph (GIUH) approach proved its usefulness to compute the synthetic unit hydrograph (SUH) and in turn the direct surface runoff component for ungauged catchments. In recent development, two-parameter Weibull’s distribution, coupled with Horton’s ratio, was used to derive the SUH. In continuation with these innovations, present study was conducted to test the adequacy of two-parameter Nakagami- m distribution to derive the GIUH along with two-parameter logistic, two-parameter Weibull, and two-parameter gamma distributions (Nash model). Nakagami- m distribution approach was first tested on the published data and then used to develop the GIUH for Bhagirathi-Bhilangana River catchment. Based on the results of comparison with other approaches, it seems that Nakagami- m distribution-based GIUH can be a good substitute to other existing approaches.
ISSN:1084-0699
1943-5584
DOI:10.1061/(ASCE)HE.1943-5584.0000103