Your search found 2 records
1 Bartlett, R.; Bharati, Luna; Pant, Dhruba; Hosterman, H.; McCornick, P. G. 2010. Climate change impacts and adaptation in Nepal. Colombo, Sri Lanka: International Water Management Institute (IWMI). 25p. (IWMI Working Paper 139) [doi: https://doi.org/10.5337/2010.227]
Climate change ; Impact assessment ; Adaptation ; National planning ; Institutions ; Water resource management ; Social aspects ; Political aspects ; River basins ; Runoff / Nepal / Koshi River Basin / Dudh Koshi Subbasin
(Location: IWMI HQ Call no: 333.91 G726 BAR Record No: H043439)
(2.4 MB)
The impact of climate change (CC) on water resources is likely to affect agricultural systems and food security. This is especially true for Nepal, a least developed country, where a high percentage of the population is dependent on agriculture for its livelihoods. It is thus crucial for Nepal’s leaders and resource managers to draft and begin implementing national adaptation plans. This working paper aims to create a more comprehensive understanding of how the impacts of CC will be realized at different scales in Nepal, from household livelihoods to national food security, and the many institutions governing the ultimate adaptation process.
2 Nepal, S. 2016. Impacts of climate change on the hydrological regime of the Koshi River Basin in the Himalayan region. Journal of Hydro-environment Research, 10:76-89. [doi: https://doi.org/10.1016/j.jher.2015.12.001]
Climate change ; Hydrological regime ; River basins ; Water balance ; Glaciers ; Snowmelt ; Meltwater ; Runoff ; Discharges ; Precipitation ; Temperature ; Evapotranspiration ; Monsoon climate ; Models ; Forecasting / Nepal / Himalayan Region / Koshi River Basin / Dudh Koshi Subbasin
(Location: IWMI HQ Call no: e-copy only Record No: H048027)
http://www.sciencedirect.com/science/article/pii/S1570644315000805/pdfft?md5=1f2ca936f939e2bf8feb7225370227f3&pid=1-s2.0-S1570644315000805-main.pdf
https://vlibrary.iwmi.org/pdf/H048027.pdf
https://vlibrary.iwmi.org/pdf/H048027.pdf
(2.96 MB) (2.96 MB)
Understanding the potential impact of climate change on the hydrological regime in the Himalayan region is of great importance for sustainable water resources management. This study assessed the historic and projected climate trends in the Koshi river basin using statistical analysis. The hydrological characteristics and the contribution of different runoff components under present and projected future conditions were investigated in the Dudh Koshi sub-basin using the J2000 model. Data for 1995 to 2096 from the Providing REgional Climates for Impacts Studies (PRECIS) regional climate model were used in the J2000 model to project the impact of climate change under the A1B climate scenario in mid-century (2040–2050) and late-century (2086–2096), compared to baseline (2000–2010). Present climate showed an increase in average temperature in the river basin at a rate of 0.058 °C/year for maximum temperature and 0.014 °C/year for minimum temperature over the past forty years. The model simulation of the hydrological regime from 1985 to1997 was satisfactory. The average annual contribution of snow and glacier melt to total discharge was about 34%, whereas it was 63% in the pre-monsoon season (March to May). The projected future results from the model indicate a 13% increase in annual discharge by mid-century followed by a slight decrease; and a 16% increase in evapotranspiration by the end of the century. Snowfall is projected to decrease substantially due to the rise in temperature, the basin will lose snow storage capacity, and there will be a marked decrease in snowmelt runoff from non-glaciated areas. In contrast, melt from glaciated areas will increase up to mid-century and start decreasing thereafter. The model results suggest that snowfall pattern, snowmelt, discharge, and evapotranspiration are all sensitive to the effects of climate change.
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