Sediment transfer and the hydrological cycle of Himalayan rivers in Nepal = Transfert de sédiments et cycle hydrologique des rivières himalayennes au Népal - Archive ouverte HAL Access content directly
Journal Articles Comptes Rendus Géoscience Year : 2012

Sediment transfer and the hydrological cycle of Himalayan rivers in Nepal = Transfert de sédiments et cycle hydrologique des rivières himalayennes au Népal

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Cristoff Andermann
  • Function : Author
  • PersonId : 906010
Alain Crave
  • Function : Author
  • PersonId : 906009
Philippe Davy
Laurent Longuevergne
Richard Gloaguen
  • Function : Author
  • PersonId : 852064

Abstract

We present an analysis of daily water discharge and suspended sediment concentration measurements for the three main drainage basins in Nepal, on the basis of recent published papers. We first show how precipitation-discharge data can be used to highlight the impact of groundwater storage on the annual hydrological cycle of Himalayan rivers. Then, we show how the concentration of suspended sediment in rivers varies at the year scale depending on the river discharge cycle, as well as how the release of groundwater impacts the concentration of materials in rivers. Finally, we propose a new conceptual model for the mobilization and transportation of material within the monsoonal discharge cycle in the central Himalayas.
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Dates and versions

insu-00788819 , version 1 (15-02-2013)

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Cristoff Andermann, Stéphane Bonnet, Alain Crave, Philippe Davy, Laurent Longuevergne, et al.. Sediment transfer and the hydrological cycle of Himalayan rivers in Nepal = Transfert de sédiments et cycle hydrologique des rivières himalayennes au Népal. Comptes Rendus Géoscience, 2012, 344 (11-12), pp.627-635. ⟨10.1016/j.crte.2012.10.009⟩. ⟨insu-00788819⟩
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