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Träfflista för sökning "WFRF:(Singh Shaktiman) srt2:(2018)"

Sökning: WFRF:(Singh Shaktiman) > (2018)

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1.
  • Kumar, Rajesh, et al. (författare)
  • Dynamics of suspended sediment load with respect to summer discharge and temperatures in Shaune Garang glacierized catchment, Western Himalaya
  • 2018
  • Ingår i: Acta Geophysica. - : Springer. - 1895-6572 .- 1895-7455. ; 66:5, s. 1109-1120
  • Tidskriftsartikel (refereegranskat)abstract
    • The observed and predicted rise in temperature will have deleterious impact on melting of snow and ice and form of precipitation which is already evident in Indian Himalayan Region. The temperature-dependent entities like discharge and sediment load will also vary with the observed and predicted rise posing environmental, social and economic threat in the region. There is little known about sediment load transport in relation to temperature and discharge in glacierized catchments in Himalaya mainly due to the scarcity of ground-based observation. The present study is an attempt to understand the suspended sediment load and transportation in relation to variation in discharge and temperature in the Shaune Garang catchment. The result shows strong dependence of sediment concentration primarily on discharge (R2 = 0.84) and then on temperature (R2 = 0.79). The catchments with similar geological and climate setting were observed to have comparatively close weathering rate. The sediment load was found to be higher in the catchments in eastern and central part of Indian Himalayan Region in comparison with western part due to dominance of Indian Summer Monsoon leading to high discharge. The annual physical weathering rate in Shaune Garang catchment was found to be 411 t km−2 year−1 which has increased from 327 t km−2 year−1 in around three decades due to rise in temperature causing increase in discharge and proportion of debris-covered glacierized area.
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2.
  • Singh, Shaktiman, et al. (författare)
  • Changing climate and glacio-hydrology: a case study of Shaune Garang basin, Himachal Pradesh
  • 2018
  • Ingår i: International Journal of Hydrology Science and Technology. - : InderScience Publishers. - 2042-7808 .- 2042-7816. ; 8:3, s. 258-272
  • Tidskriftsartikel (refereegranskat)abstract
    • The rise in temperature is already evident in Himalaya with rate of increase varying seasonally and spatially. Changes in precipitation are also evident with no clear trend. Several studies in different parts of Himalayas suggest that the glaciers are retreating in general with few exceptions as response to changes in temperature and precipitation. The stream flow in river basins in Indian Himalayan region (IHR) is already showing changes in studies undertaken in the last few decades. Use of glacio-hydrological models gives opportunity to estimate stream flow in glaciated river basins and understand the changes. The present study deals with estimation of discharge in Shaune Garang Basin, Himachal Pradesh using a glacio-hydrological model based on degree day factors. The model was used to estimate long term average of melt season discharge (1985-2007) in the basin. The modelled discharge shows good correlation with measured discharge for simulation period except for first year of comparison.
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  • Resultat 1-2 av 2
Typ av publikation
tidskriftsartikel (2)
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refereegranskat (2)
Författare/redaktör
Kumar, Rajesh (2)
Bhardwaj, Anshuman (2)
Singh, Shaktiman (2)
Kumar, Ramesh (2)
Singh, Atar (2)
Kumari, Anupma (1)
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Randhawa, S.S. (1)
Saha, Ashok (1)
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Luleå tekniska universitet (2)
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Engelska (2)
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Naturvetenskap (2)
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