Record Details

Ephemeral flow modelling in arid regions

DSpace at IIT Bombay

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Field Value
 
Title Ephemeral flow modelling in arid regions
 
Creator SHARMA, KD
MURTHY, JSR
 
Subject leaky reservoir
flow recession
loss rate
shape parameter
ungauged events
 
Description Flow hydrographs in arid upland basins, where the runoff is directly related to the rainfall, are simulated by a combination of regression and differential equation techniques. The rising limb of the hydrograph is modelled through a regression analysis and the recession portion through a conceptual analog of discharge from a single leaky reservoir, which is described by a continuity equation and by discharge-stage and storage-stage relations at the basin outlet. A good agreement between observed and model-predicted recession curves was obtained by optimizing the reservoir leakage rate and the initial storage in the reservoir. Best parameter values are physically realistic and best reservoir configuration has leakage that varies as the cube of stage for the initial event of the season in the organised stream network and as the square of the stage for rest of the events. The technique can be applied to the ungauged flow events through parameterization. (C) 1996 Academic Press Limited
 
Publisher ACADEMIC PRESS LTD
 
Date 2011-07-12T20:31:03Z
2011-12-26T13:02:47Z
2011-12-27T05:49:40Z
2011-07-12T20:31:03Z
2011-12-26T13:02:47Z
2011-12-27T05:49:40Z
1996
 
Type Article
 
Identifier JOURNAL OF ARID ENVIRONMENTS, 33(2), 161-178
0140-1963
http://dx.doi.org/10.1006/jare.1996.0054
http://dspace.library.iitb.ac.in/xmlui/handle/10054/3532
http://hdl.handle.net/10054/3532
 
Language en