Implication of drainage basin parameters of Chhoti Gandak River,Ganga Plain,India |
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| Authors: | Dhruv Sen Singh Amit Awasthi |
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| Institution: | (1) CONICET, Instituto Miguel Lillo, Miguel Lillo 205, 4000 San Miguel de Tucuman, Argentina |
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| Abstract: | The drainage basin parameters of the groundwater-fed Chhoti Gandak River originating in the terai area of the Ganga Plain
were analyzed using topographical sheets, satellite data, and field documentation with emphasis to its implication for flood
mitigation and recharging of groundwater. The analyses indicate dominance of first order streams, gentle slope gradient, low
surface run-off, low sediment production, high infiltration rate, and low value of basin relief. The low water storage capacity,
spreading of water and concentration of peak discharge in the distal part of the river basin explain that whenever precipitation
is high in the catchment area there is flood in the distal part of the basin. The bifurcation ratio value (4.34) of this basin
describes that the drainage is carved naturally by slope and local relief and not influenced by geological structures like
lineaments and faults. |
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