A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Future Climate Change Impacts on the Stream Flow—A River Basin Scale Assessment
The effect of climate change (CC) variation results in considerable changes in hydrology leading to large-scale socio-economic impacts. Further studies demonstrate that long-term climate change in the river basins is giving rise to frequent hydro-meteorological extremes such as floods and droughts. In this study, the future CC impacts on a river basin scale are assessed and effects on stream flow are estimated using a hydrological model SWAT (Soil and Water Assessment Tool). The methodology adopted is demonstrated using a case study of the Muvattupuzha river basin (MRB) in Kerala, South India. The CC impacts for the future up to 2100 are obtained from the ensembled values of 5 GCMs including CCCMA CanESM2; CNRM CM5; MPI ESM MR; MPI ESM LR and BNU ESM. The hydrologic model was calibrated and validated at two river gauge stations using monthly river streamflow data. The results indicated that mean annual surface runoff in the near, mid, and far future would be decreasing under both RCP 4.5 and 8.5 while RCP 8.5 showing worse conditions than RCP 4.5, in the future. Furthermore, the projected results indicate that the surface runoff would be higher in both RCP scenarios during winter and summer, while the monsoon period largely demonstrates a reverse trend, that can lead the water scarcity in the river basin. The results of this study can be helpful to policymakers for appropriate water resource management, considering climate change scenarios for moderate and worse conditions in the future period.
Future Climate Change Impacts on the Stream Flow—A River Basin Scale Assessment
The effect of climate change (CC) variation results in considerable changes in hydrology leading to large-scale socio-economic impacts. Further studies demonstrate that long-term climate change in the river basins is giving rise to frequent hydro-meteorological extremes such as floods and droughts. In this study, the future CC impacts on a river basin scale are assessed and effects on stream flow are estimated using a hydrological model SWAT (Soil and Water Assessment Tool). The methodology adopted is demonstrated using a case study of the Muvattupuzha river basin (MRB) in Kerala, South India. The CC impacts for the future up to 2100 are obtained from the ensembled values of 5 GCMs including CCCMA CanESM2; CNRM CM5; MPI ESM MR; MPI ESM LR and BNU ESM. The hydrologic model was calibrated and validated at two river gauge stations using monthly river streamflow data. The results indicated that mean annual surface runoff in the near, mid, and far future would be decreasing under both RCP 4.5 and 8.5 while RCP 8.5 showing worse conditions than RCP 4.5, in the future. Furthermore, the projected results indicate that the surface runoff would be higher in both RCP scenarios during winter and summer, while the monsoon period largely demonstrates a reverse trend, that can lead the water scarcity in the river basin. The results of this study can be helpful to policymakers for appropriate water resource management, considering climate change scenarios for moderate and worse conditions in the future period.
Future Climate Change Impacts on the Stream Flow—A River Basin Scale Assessment
Lecture Notes in Civil Engineering
Dutta, Subashisa (editor) / Chembolu, Vinay (editor) / Eldho, T. I. (author) / Sinha, Rakesh Kumar (author)
International Conference on River Corridor Research and Management ; 2022
2023-08-18
17 pages
Article/Chapter (Book)
Electronic Resource
English
Impact of climate change on future stream flow in the Dakbla river basin
| British Library Online Contents | 2014
Climate Change Impacts on Extreme Flow Measures in Satluj River Basin in India
| British Library Conference Proceedings | 2010
Evaluating the Impact of Climate Change on the Stream Flow in Soan River Basin (Pakistan)
| DOAJ | 2022
Assessing the Hydrologic Impacts of Climate Change on the Colorado River Basin
| British Library Conference Proceedings | 1995