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    Past and future variability in the hydrological regime of the Koshi basin, Nepal

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    Authors
    Bharati, Luna
    Gurung, Pabitra
    Bhattarai, Utsav
    Date
    2014
    Language
    en
    Type
    Journal Article
    Accessibility
    Limited Access
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    Citation
    Bharati, Luna; Gurung, Pabitra; Bhattarai, Utsav. 2014. Past and future variability in the hydrological regime of the Koshi basin, Nepal. Hydrological Sciences Journal, 33p. (Online first). doi: http://dx.doi.org/10.1080/02626667.2014.952639
    Permanent link to cite or share this item: http://hdl.handle.net/10568/58410
    DOI: https://dx.doi.org/10.1080/02626667.2014.952639
    Abstract/Description
    Planning adaptation strategies in response to climate change (CC) can be a daunting task, especially in regions such as the Koshi Basin in the Himalayas; where CC impacts are still uncertain. This paper recommends targeting adaptation strategies by focusing on changes in variability between the past and future climates at smaller scales. The Soil and Water Assessment Tool (SWAT) and the Indicators of Hydrologic Alteration (IHA) are used for analysis. Results show: (i) higher maximum precipitation during monsoon and post-monsoon, and lower maximum precipitation during winter; (ii) increase in precipitation and flows in the trans mountain region during all seasons, except for flows during monsoon; (iii) increase in post-monsoon precipitation and routed flow volumes; (iv) decrease in precipitation during winter and routed flow volumes in all the regions, except the trans mountain region; and (v) increase in frequency of high peak flows and decrease in baseflows.
    CGIAR Affiliations
    Climate Change, Agriculture and Food Security
    Subjects
    HYDROLOGY; MODELS; CLIMATE CHANGE; ADAPTATION; PRECIPITATION; MONSOON CLIMATE; WINTER; RIVER BASINS; SOIL MANAGEMENT; ASSESSMENT; WATER YIELD;
    Countries
    NEPAL
    Collections
    • IWMI Journal Articles [1939]
    • Managing Resource Variability and Competing Use [422]

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