Impact of climate change on water resources of upper Kharun catchment in Chhattisgarh, India
Kumar, N.; Tischbein, B.; Kusche, J.; Laux, P.
1; Beg, M. K.; Bogardi, J. J.
1 Institut für Meteorologie und Klimaforschung (IMK), Karlsruher Institut für Technologie (KIT)
1; Beg, M. K.; Bogardi, J. J.1 Institut für Meteorologie und Klimaforschung (IMK), Karlsruher Institut für Technologie (KIT)
Abstract:
Study region
The Upper Kharun Catchment (UKC) is one of the most important, economically sound and highly populated watersheds of Chhattisgarh state in India. The inhabitants strongly depend on monsoon and are severely prone to water stress.
Study focus
This research aims to assess the impact of climate change on water balance components.
New hydrological insights for the region
The station-level bias-corrected PRECIS (Providing REgional Climates for Impact Studies) projections generally show increasing trends for annual rainfall and temperature. Hydrological simulations, performed by SWAT (Soil and Water Assessment Tool), indicate over-proportional runoff-rainfall and under-proportional percolation-rainfall relationships. Simulated annual discharge for 2020s will decrease by 2.9% on average (with a decrease of 25.9% for q1 to an increase by 23.6% for q14); for 2050s an average increase by 12.4% (17.6% decrease for q1 to 39.4% increase for q0); for 2080s an average increase of 39.5% (16.3% increase for q1 to an increase of 63.7% for q0). Respective ranges on percolation: for 2020s an average decrease by 0.8% (12.8% decrease for q1 to an increase of 8.7% for q14); for 2050s an average increase by 2.5% (10.3% decrease for q1 to 15.4% increase for q0); for 2080s an average increase by 7.5% (0.3% decrease for q1 to 13.7% increase for q0). ... mehr
The Upper Kharun Catchment (UKC) is one of the most important, economically sound and highly populated watersheds of Chhattisgarh state in India. The inhabitants strongly depend on monsoon and are severely prone to water stress.
Study focus
This research aims to assess the impact of climate change on water balance components.
New hydrological insights for the region
The station-level bias-corrected PRECIS (Providing REgional Climates for Impact Studies) projections generally show increasing trends for annual rainfall and temperature. Hydrological simulations, performed by SWAT (Soil and Water Assessment Tool), indicate over-proportional runoff-rainfall and under-proportional percolation-rainfall relationships. Simulated annual discharge for 2020s will decrease by 2.9% on average (with a decrease of 25.9% for q1 to an increase by 23.6% for q14); for 2050s an average increase by 12.4% (17.6% decrease for q1 to 39.4% increase for q0); for 2080s an average increase of 39.5% (16.3% increase for q1 to an increase of 63.7% for q0). Respective ranges on percolation: for 2020s an average decrease by 0.8% (12.8% decrease for q1 to an increase of 8.7% for q14); for 2050s an average increase by 2.5% (10.3% decrease for q1 to 15.4% increase for q0); for 2080s an average increase by 7.5% (0.3% decrease for q1 to 13.7% increase for q0). ... mehr
| Zugehörige Institution(en) am KIT | Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU) KIT-Zentrum Klima und Umwelt (ZKU) |
| Publikationstyp | Zeitschriftenaufsatz |
| Publikationsjahr | 2017 |
| Sprache | Englisch |
| Identifikator | ISSN: 2214-5818 urn:nbn:de:swb:90-741668 KITopen-ID: 1000074166 |
| HGF-Programm | 12.02.03 (POF III, LK 01) Regional Climate-and Water Cycle Variab. |
| Erschienen in | Journal of hydrology / Regional studies |
| Verlag | Elsevier |
| Band | 13 |
| Seiten | 189-207 |
| Bemerkung zur Veröffentlichung | Gefördert durch den KIT-Publikationsfonds |
| Schlagwörter | Soil and Water Assessment Tool; PRECIS regional climate projections; Climate change and water balance components |
| Nachgewiesen in | Dimensions Scopus |
| Globale Ziele für nachhaltige Entwicklung |