The impacts of water infrastructure and climate change on the hydrology of the Upper Ganges River Basin
This study assessed the variability of flows under present and 'naturalized' basin conditions in the Upper Ganges Basin (UGB). Furthermore, the PRECIS regional climate model (RCM) was used to generate climate projections for the UGB, with subsequent simulations of future river flows. Results show th...
| Autores principales: | , , , , , |
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| Formato: | Informe técnico |
| Lenguaje: | Inglés |
| Publicado: |
International Water Management Institute
2011
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/39928 |
| _version_ | 1855516324950704128 |
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| author | Bharati, Luna Lacombe, Guillaume Gurung, Pabitra Jayakody, Priyantha Hoanh, Chu Thai Smakhtin, Vladimir U. |
| author_browse | Bharati, Luna Gurung, Pabitra Hoanh, Chu Thai Jayakody, Priyantha Lacombe, Guillaume Smakhtin, Vladimir U. |
| author_facet | Bharati, Luna Lacombe, Guillaume Gurung, Pabitra Jayakody, Priyantha Hoanh, Chu Thai Smakhtin, Vladimir U. |
| author_sort | Bharati, Luna |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | This study assessed the variability of flows under present and 'naturalized' basin conditions in the Upper Ganges Basin (UGB). Furthermore, the PRECIS regional climate model (RCM) was used to generate climate projections for the UGB, with subsequent simulations of future river flows. Results show that the annual average precipitation, actual evapotranspiration (ET) and net water yields of the whole basin were 1,192 mm, 416 mm and 615 mm, respectively. Precipitation, ET and water yields were found to be higher in the forested and mountainous upper areas of the UGB. On an annual average, present-day flows throughout UGB are about 2-8% lower than under naturalized conditions. Dry and wet season flows under climate change (CC) scenario A2 are lower than that under present climate conditions at upstream locations, but higher at downstream locations of UGB. Flows under CC scenario B2 are systematically higher and lower than that under CC scenario A2 during dry and wet seasons, respectively. |
| format | Informe técnico |
| id | CGSpace39928 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2011 |
| publishDateRange | 2011 |
| publishDateSort | 2011 |
| publisher | International Water Management Institute |
| publisherStr | International Water Management Institute |
| record_format | dspace |
| spelling | CGSpace399282025-11-07T08:42:04Z The impacts of water infrastructure and climate change on the hydrology of the Upper Ganges River Basin Bharati, Luna Lacombe, Guillaume Gurung, Pabitra Jayakody, Priyantha Hoanh, Chu Thai Smakhtin, Vladimir U. water resources river basins climate change hydrology simulation models precipitation evapotranspiration statistical methods water balance water yield irrigation water This study assessed the variability of flows under present and 'naturalized' basin conditions in the Upper Ganges Basin (UGB). Furthermore, the PRECIS regional climate model (RCM) was used to generate climate projections for the UGB, with subsequent simulations of future river flows. Results show that the annual average precipitation, actual evapotranspiration (ET) and net water yields of the whole basin were 1,192 mm, 416 mm and 615 mm, respectively. Precipitation, ET and water yields were found to be higher in the forested and mountainous upper areas of the UGB. On an annual average, present-day flows throughout UGB are about 2-8% lower than under naturalized conditions. Dry and wet season flows under climate change (CC) scenario A2 are lower than that under present climate conditions at upstream locations, but higher at downstream locations of UGB. Flows under CC scenario B2 are systematically higher and lower than that under CC scenario A2 during dry and wet seasons, respectively. 2011 2014-06-13T14:29:42Z 2014-06-13T14:29:42Z Report https://hdl.handle.net/10568/39928 en Open Access application/pdf International Water Management Institute Bharati, Luna; Lacombe, Guillaume; Gurung, Pabitra; Jayakody, Priyantha; Hoanh, Chu Thai; Smakhtin, Vladimir. 2011. The impacts of water infrastructure and climate change on the hydrology of the Upper Ganges River Basin. Colombo, Sri Lanka: International Water Management Institute (IWMI). 28p. (IWMI Research Report 142) doi: https://doi.org/10.5337/2011.210 |
| spellingShingle | water resources river basins climate change hydrology simulation models precipitation evapotranspiration statistical methods water balance water yield irrigation water Bharati, Luna Lacombe, Guillaume Gurung, Pabitra Jayakody, Priyantha Hoanh, Chu Thai Smakhtin, Vladimir U. The impacts of water infrastructure and climate change on the hydrology of the Upper Ganges River Basin |
| title | The impacts of water infrastructure and climate change on the hydrology of the Upper Ganges River Basin |
| title_full | The impacts of water infrastructure and climate change on the hydrology of the Upper Ganges River Basin |
| title_fullStr | The impacts of water infrastructure and climate change on the hydrology of the Upper Ganges River Basin |
| title_full_unstemmed | The impacts of water infrastructure and climate change on the hydrology of the Upper Ganges River Basin |
| title_short | The impacts of water infrastructure and climate change on the hydrology of the Upper Ganges River Basin |
| title_sort | impacts of water infrastructure and climate change on the hydrology of the upper ganges river basin |
| topic | water resources river basins climate change hydrology simulation models precipitation evapotranspiration statistical methods water balance water yield irrigation water |
| url | https://hdl.handle.net/10568/39928 |
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