TY - JOUR
T1 - The evaluation of climate change impact on hydrologic processes of a mountain river basin
AU - Adhikari, Tirtha Raj
AU - Talchabhadel, Rocky
AU - Shrestha, Suraj
AU - Sharma, Sanjib
AU - Aryal, Dibit
AU - Pradhanang, Soni M.
N1 - Funding Information:
The authors would like to thank the Department of Hydrology and Meteorology, Government of Nepal, for sharing the observed daily hydrometeorological data. The authors also acknowledge the Pradhanang Lab (Hydro-system and Water Quality Lab), the University of Rhode Island, for the continuous support of this study. Finally, the authors thank Dr. Jan Seibert, University of Zurich, who provided the full-fledged HBV model.
Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature.
PY - 2022/10
Y1 - 2022/10
N2 - The influence of climate change on the catchment-scale hydrologic processes can have a profound impact on river flow and the availability of fresh water. Here, we develop an integrated modeling framework to assess the near- and long-term hydrological response to climate change in a mountain river basin. The framework samples climate model outputs under different representative concentration pathways to force the calibrated hydrologic model and generate daily streamflow projections. We implement a framework in the Modi River basin, with an elevation ranging from 750 m to over 8000 m above sea level. Under the highest warming scenario, the mean annual precipitation and temperature are projected to vary to be as high as 4531 mm and 25.7 °C, respectively. The study results show that the future streamflow of the Modi River basin will increase during the latter time windows, i.e., far future (2075–2099) > > mid future (2050–2074) > > near future (2025–2049). Exploring how climate change can alter different hydrological processes can help improve the fundamental understanding of water balance and hydrologic controls, which are critical in ensuring the functionality of the natural ecosystems.
AB - The influence of climate change on the catchment-scale hydrologic processes can have a profound impact on river flow and the availability of fresh water. Here, we develop an integrated modeling framework to assess the near- and long-term hydrological response to climate change in a mountain river basin. The framework samples climate model outputs under different representative concentration pathways to force the calibrated hydrologic model and generate daily streamflow projections. We implement a framework in the Modi River basin, with an elevation ranging from 750 m to over 8000 m above sea level. Under the highest warming scenario, the mean annual precipitation and temperature are projected to vary to be as high as 4531 mm and 25.7 °C, respectively. The study results show that the future streamflow of the Modi River basin will increase during the latter time windows, i.e., far future (2075–2099) > > mid future (2050–2074) > > near future (2025–2049). Exploring how climate change can alter different hydrological processes can help improve the fundamental understanding of water balance and hydrologic controls, which are critical in ensuring the functionality of the natural ecosystems.
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U2 - 10.1007/s00704-022-04204-3
DO - 10.1007/s00704-022-04204-3
M3 - Article
AN - SCOPUS:85137506143
SN - 0177-798X
VL - 150
SP - 749
EP - 762
JO - Theorectical and Applied Climatology
JF - Theorectical and Applied Climatology
IS - 1-2
ER -
