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Theoretical and Applied Climatology

, Volume 115, Issue 3–4, pp 639–654 | Cite as

Climate change and water resources in the Bagmati River Basin, Nepal

  • Mukand S. BabelEmail author
  • Shyam P. Bhusal
  • Shahriar M. Wahid
  • Anshul Agarwal
Original Paper

Abstract

This paper characterizes potential hydrological impact of future climate in the Bagmati River Basin, Nepal. For this research, basinwide future hydrology is simulated by using downscaled temperature and precipitation outputs from the Hadley Centre Coupled Model, version 3 (HadCM3), and the Hydrologic Engineering Center's Hydrologic Modeling System (HEC-HMS). It is predicted that temperature may rise maximally during the summer rather than winter for both A2 and B2 Special Report on Emissions Scenarios (SRES) scenarios. Precipitation may increase during the wet season, but it may decrease during other seasons for A2 scenario. For B2 scenario, precipitation may increase during all the seasons. Under the A2 scenario, premonsoon water availability may decrease more in the upper than the middle basin. During monsoons, both upper and middle basins show increased water availability. During the postmonsoon season, water availability may decrease in the upper part, while the middle part shows a mixed trend. Under the B2 scenario, water availability is expected to increase in the entire basin. The analysis of the projected hydrologic impact of climate change is expected to support informed decision-making for sustainable water management.

Keywords

Climate Change Impact Future Time Period Middle Basin Postmonsoon Season Hadley Centre Couple Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The authors are grateful to officials of the Department of Hydrology and Meteorology, Nepal, for their cooperation during the data collection and the Church of Scotland, UK, for providing research funds.

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Copyright information

© Springer-Verlag Wien 2013

Authors and Affiliations

  • Mukand S. Babel
    • 1
    Email author
  • Shyam P. Bhusal
    • 2
  • Shahriar M. Wahid
    • 3
  • Anshul Agarwal
    • 1
  1. 1.Water Engineering and Management, Asian Institute of Technology (AIT)PathumthaniThailand
  2. 2.Hydroconsult Pvt. Ltd.KathmanduNepal
  3. 3.Integrated Water and Hazard Management Programme (IWHM), International Centre for Integrated Mountain Development (ICIMOD)KathmanduNepal

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