Spatio-temporal distribution of water availability in Karnali-Mohana Basin, western Nepal: climate change impact assessment (Part-B)
Study region: Karnali-Mohana river basin, Western Nepal. Study focus: This study aims to project future climate and assess impacts of climate change (CC) on water availability in the Karnali-Mohana (KarMo) basin. Bias-corrected future climate was projected based on ensembles of multiple models sele...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Elsevier
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/108364 |
| _version_ | 1855520454720094208 |
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| author | Pandey, Vishnu Prasad Dhaubanjar, Sanita Bharati, Luna Thapa, Bhesh Raj |
| author_browse | Bharati, Luna Dhaubanjar, Sanita Pandey, Vishnu Prasad Thapa, Bhesh Raj |
| author_facet | Pandey, Vishnu Prasad Dhaubanjar, Sanita Bharati, Luna Thapa, Bhesh Raj |
| author_sort | Pandey, Vishnu Prasad |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Study region: Karnali-Mohana river basin, Western Nepal.
Study focus: This study aims to project future climate and assess impacts of climate change (CC) on water availability in the Karnali-Mohana (KarMo) basin. Bias-corrected future climate was projected based on ensembles of multiple models selected from a set of 19 regional climate models (RCMs). The impacts on water availability were then assessed by forcing a well calibrated and validated hydrological model with projected future precipitation (P) and temperature (T) for various climatic scenarios.
New hydrological insights for this region: Results showed that future T is projected to increase spatio-temporally with higher rate for the mountain stations in the winter season; whereas future P has no distinct spatio-temporal trend but increase in dry season precipitation for future periods. The projected changes in P, T and evapotranspiration are expected to alter average annual flow at the outlets of the KarMo and its sub-basins, albeit with varying rate. The simulated results showed higher impacts in water availability at higher altitudes, thus indicating higher vulnerability of northern mountainous region to CC than the southern flatlands. Being the first ever study of such nature in the study area, these results will be useful for planning and development of climate-resilient water development projects in the region. |
| format | Journal Article |
| id | CGSpace108364 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1083642025-03-11T09:50:20Z Spatio-temporal distribution of water availability in Karnali-Mohana Basin, western Nepal: climate change impact assessment (Part-B) Pandey, Vishnu Prasad Dhaubanjar, Sanita Bharati, Luna Thapa, Bhesh Raj water availability spatial distribution river basins climate change impact assessment forecasting water resources hydrology models precipitation temperature monsoon climate meteorological stations Study region: Karnali-Mohana river basin, Western Nepal. Study focus: This study aims to project future climate and assess impacts of climate change (CC) on water availability in the Karnali-Mohana (KarMo) basin. Bias-corrected future climate was projected based on ensembles of multiple models selected from a set of 19 regional climate models (RCMs). The impacts on water availability were then assessed by forcing a well calibrated and validated hydrological model with projected future precipitation (P) and temperature (T) for various climatic scenarios. New hydrological insights for this region: Results showed that future T is projected to increase spatio-temporally with higher rate for the mountain stations in the winter season; whereas future P has no distinct spatio-temporal trend but increase in dry season precipitation for future periods. The projected changes in P, T and evapotranspiration are expected to alter average annual flow at the outlets of the KarMo and its sub-basins, albeit with varying rate. The simulated results showed higher impacts in water availability at higher altitudes, thus indicating higher vulnerability of northern mountainous region to CC than the southern flatlands. Being the first ever study of such nature in the study area, these results will be useful for planning and development of climate-resilient water development projects in the region. 2020-06 2020-06-01T09:03:23Z 2020-06-01T09:03:23Z Journal Article https://hdl.handle.net/10568/108364 en Open Access Elsevier Pandey, Vishnu Prasad; Dhaubanjar, Sanita; Bharati, Luna; Thapa, Bhesh Raj. 2020. Spatio-temporal distribution of water availability in Karnali-Mohana Basin, western Nepal: climate change impact assessment (Part-B). Journal of Hydrology: Regional Studies, 29:100691. |
| spellingShingle | water availability spatial distribution river basins climate change impact assessment forecasting water resources hydrology models precipitation temperature monsoon climate meteorological stations Pandey, Vishnu Prasad Dhaubanjar, Sanita Bharati, Luna Thapa, Bhesh Raj Spatio-temporal distribution of water availability in Karnali-Mohana Basin, western Nepal: climate change impact assessment (Part-B) |
| title | Spatio-temporal distribution of water availability in Karnali-Mohana Basin, western Nepal: climate change impact assessment (Part-B) |
| title_full | Spatio-temporal distribution of water availability in Karnali-Mohana Basin, western Nepal: climate change impact assessment (Part-B) |
| title_fullStr | Spatio-temporal distribution of water availability in Karnali-Mohana Basin, western Nepal: climate change impact assessment (Part-B) |
| title_full_unstemmed | Spatio-temporal distribution of water availability in Karnali-Mohana Basin, western Nepal: climate change impact assessment (Part-B) |
| title_short | Spatio-temporal distribution of water availability in Karnali-Mohana Basin, western Nepal: climate change impact assessment (Part-B) |
| title_sort | spatio temporal distribution of water availability in karnali mohana basin western nepal climate change impact assessment part b |
| topic | water availability spatial distribution river basins climate change impact assessment forecasting water resources hydrology models precipitation temperature monsoon climate meteorological stations |
| url | https://hdl.handle.net/10568/108364 |
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