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Modeling runoff from an agricultural watershed of western catchment of Chilika lake through ArcSWAT

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Title Modeling runoff from an agricultural watershed of western catchment of Chilika lake through ArcSWAT
Not Available
 
Creator Santra, P.
Das, B.S.
 
Subject Runoff estimation
Hydrological modeling
Lake ecosystem
Tropical watershed
Rainfallerunoff relationship
 
Description Not Available
Chilika lake is the biggest lagoon in the Indian Eastern coast and is a source of livelihood for peoples of the coastal region surrounding it
mainly through fisheries. However, the deposition of sediments in the lake carried through runoff water from its drainage basins may alter this
wetland ecosystem in future. Implementation of appropriate soil water conservation measures may reduce the sediment load in runoff water and
thus may protect this lagoon ecosystem. Keeping in view these concerns, runoff water from a selected watershed of western catchment of Chilika
lagoon was modeled through ArcSWAT with a purpose to estimate future runoff potential from western catchment. Effective hydraulic conductivity
of main channel, base flow alpha factor, curve number corresponding to antecedent moisture content II, and roughness coefficient of
main channel were found most sensitive parameters in decreasing order. NasheSutcliffe coefficient of predicted monthly runoff was 0.72 and
0.88 during calibration and validation period, respectively whereas root mean squared error of predicted monthly runoff was 54.5 and 66.1 mm,
respectively. Modeling results indicated that about 60% of rainfall is partitioned to runoff water, which carry significant amount of sediment load
and contributes to Chilika lake.
Not Available
 
Date 2019-05-06T11:13:07Z
2019-05-06T11:13:07Z
2013-04-19
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/19257
 
Language English
 
Relation Not Available;
 
Publisher Elsevier