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Open AccessArticle

Climate Change and Its Possible Impact in Groundwater Resource of the Kankai River Basin, East Nepal Himalaya

1
Department of Geology, Central Campus of Technology, Tribhuvan University, Dharan 56700, Nepal
2
Central Department of Geology, Tribhuvan University, Kathmandu 44600, Nepal
3
Central Department of Hydrology and Meteorology, Tribhuvan University, Kathmandu 44600, Nepal
*
Author to whom correspondence should be addressed.
Climate 2020, 8(11), 137; https://doi.org/10.3390/cli8110137
Received: 2 October 2020 / Revised: 17 November 2020 / Accepted: 18 November 2020 / Published: 23 November 2020
Increasing evidence of changing climate patterns is being observed, and the impact of this change on groundwater has a direct impact on the livelihood and economy of the region. The research focuses on the impacts of global temperature increase and changing precipitation on the groundwater resources of part of the Himalayan river system. The spatial and temporal variations of the hydro-meteorological data of the Kankai River Basin in East Nepal were analyzed using non-parametric Mann–Kendall tests and Sen’s Slope methods, whereas CanESM2 was used to predict the future precipitation scenarios, and an attempt has been made to evaluate the possible impacts on groundwater systems in the region. The temperature shows a significant warming trend (0.14–0.64 °C/decade); however, the precipitation trends suggest remarkable variation mostly at higher elevation. The average annual precipitation suggests a decrease of 1.82 mm/year and a similar decrement has been projected for the future. The groundwater in the region has been influenced by the changing climate and the condition may further be exaggerated by reduced recharge and increased evapotranspiration. This understanding of the impacts and climate scenarios will help the planners with better adaptation strategies, plans, and programs for a better society. View Full-Text
Keywords: spatial and temporal variability; projection; CanESM2; precipitation; temperature and discharge; groundwater spatial and temporal variability; projection; CanESM2; precipitation; temperature and discharge; groundwater
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MDPI and ACS Style

Silwal, C.B.; Pathak, D.; Adhikari, D.; Adhikari, T.R. Climate Change and Its Possible Impact in Groundwater Resource of the Kankai River Basin, East Nepal Himalaya. Climate 2020, 8, 137.

AMA Style

Silwal CB, Pathak D, Adhikari D, Adhikari TR. Climate Change and Its Possible Impact in Groundwater Resource of the Kankai River Basin, East Nepal Himalaya. Climate. 2020; 8(11):137.

Chicago/Turabian Style

Silwal, Champak B.; Pathak, Dinesh; Adhikari, Drona; Adhikari, Tirtha R. 2020. "Climate Change and Its Possible Impact in Groundwater Resource of the Kankai River Basin, East Nepal Himalaya" Climate 8, no. 11: 137.

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