On geomorphological dispersion in natural catchments and the geomorphological unit hydrograph

1994 ◽  
Vol 30 (7) ◽  
pp. 2311-2323 ◽  
Author(s):  
John D. Snell ◽  
Murugesu Sivapalan
Keyword(s):  
Unit Hydrograph ◽  
Geomorphological Unit

scholarly journals The geomorphological unit hydrograph – a critical review

1998 ◽  
Vol 2 (1) ◽  
pp. 1-8 ◽  
Author(s):  
A. Y. Shamseldin ◽  
J. E. Nash
Keyword(s):  
Critical Review ◽  
Drainage Network ◽  
Unit Hydrograph ◽  
Channel Network ◽  
Geomorphological Unit ◽  
Catchment Characteristics ◽  
Scale Factors ◽  
Instantaneous Unit Hydrograph ◽  
Plausible Hypothesis ◽  
Two Parameter

Abstract. The theory of the geomorphological unit hydrograph (GUH) is examined critically and it is shown that the inherent assumption that the operation of the drainage network may be modelled by a corresponding network of linear reservoirs so restricts the instantaneous unit hydrograph (IUH) shape that the effects of further restrictions, reflecting the constraints imposed by the geomorphological laws of the channel network, cannot easily be identified. Without such identification, the geomorphological unit hydrograph theory is untestable and must remain only a plausible hypothesis providing an indication of a two-parameter IUH whose shape and scale factors must still be related empirically to appropriate catchment characteristics.

The geomorphological unit hydrograph from a historical-critical perspective

2015 ◽  
Vol 41 (1) ◽  
pp. 27-37 ◽  
Author(s):  
Riccardo Rigon ◽  
Marialaura Bancheri ◽  
Giuseppe Formetta ◽  
Alban de Lavenne
Keyword(s):  
Unit Hydrograph ◽  
Critical Perspective ◽  
Geomorphological Unit

Geomorphological Approach to the Skewed Shape of Instantaneous Unit Hydrograph

2015 ◽  
Vol 48 (2) ◽  
pp. 91-103
Author(s):  
Joo-Cheol Kim ◽  
◽  
Kwansue Jung ◽  
Dong Kug Jeong
Keyword(s):  
Unit Hydrograph ◽  
Instantaneous Unit Hydrograph

scholarly journals A Comparison of Some Methods of Deriving the Instantaneous Unit Hydrograph

1985 ◽  
Vol 16 (1) ◽  
pp. 1-10 ◽  
Author(s):  
V. P. Singh ◽  
C. Corradini ◽  
F. Melone
Keyword(s):  
Peak Flow ◽  
Central Italy ◽  
Effective Rainfall ◽  
Unit Hydrograph ◽  
Time To Peak ◽  
Wide Range ◽  
Instantaneous Unit Hydrograph ◽  
Similar Accuracy ◽  
Two Parameters ◽  
Range Of Values

The geomorphological instantaneous unit hydrograph (IUH) proposed by Gupta et al. (1980) was compared with the IUH derived by commonly used time-area and Nash methods. This comparison was performed by analyzing the effective rainfall-direct runoff relationship for four large basins in Central Italy ranging in area from 934 to 4,147 km2. The Nash method was found to be the most accurate of the three methods. The geomorphological method, with only one parameter estimated in advance from the observed data, was found to be little less accurate than the Nash method which has two parameters determined from observations. Furthermore, if the geomorphological and Nash methods employed the same information represented by basin lag, then they produced similar accuracy provided the other Nash parameter, expressed by the product of peak flow and time to peak, was empirically assessed within a wide range of values. It was concluded that it was more appropriate to use the geomorphological method for ungaged basins and the Nash method for gaged basins.

Storm resampling for uncertainty analysis of a multiple-storm unit hydrograph

1997 ◽  
Vol 194 (1-4) ◽  
pp. 366-384 ◽  
Author(s):  
Bing Zhao ◽  
Yeou-Koung Tung ◽  
Keh-Chia Yeh ◽  
Jinn-Chuan Yang
Keyword(s):  
Uncertainty Analysis ◽  
Unit Hydrograph
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