DOI: 10.1016/j.gsd.2019.100323
论文题名: Climate change scenarios and its effect on groundwater level in the Hiranyakeshi watershed
作者: Patil N.S. ; Chetan N.L. ; Nataraja M. ; Suthar S.
刊名: Groundwater for Sustainable Development
ISSN: 2352801X
出版年: 2020
卷: 10 语种: 英语
英文关键词: Climate change
; Groundwater
; Hiranyakeshi watershed
; MODFLOW flex
; Parameter estimation
英文摘要: The availability of groundwater resources is depleting due to growth of population, urbanization, industrialization and climate change. With increasing concern on global climate change all over the world, there has been raising interest on water resource conservation. Similarly, Hukkeri (lies within Hiranyakeshi watershed) is one such town under Belagavi, Karnataka is facing severe groundwater problems from the past few years due to uneven rainfall, climate change and over exploitation of groundwater for irrigation activities. This study focused to measure and evaluate groundwater resources by modelling approach for the Hiranyakeshi watershed using Visual MODFLOW Flex software (Modular Finite Difference Groundwater Flow Model). The model calibration achieved by Parameter Estimation (PEST), and the model performance was checked by using coefficients R2, RMSE and NRMSE. It is observed that the coefficients of R2, RMSE and NRMSE obtained are 0.98, 1.68 and 3.41% respectively. The results from the model simulation gives increase in head of 1.8 m during 5years simulation period. The model was again simulated for the A1B climate change scenarios for the period 2021–2050 using Hadley Regional Model 3 (HadRM3) data for the Hiranyakeshi watershed to measure the effects of climate change on the groundwater recharge. Based on the long term output analysis, it is expected that there is an increase in the average annual temperature by 2.59 °C, precipitation by 81.50% and groundwater recharge by 24.91%. © 2019 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158453
Appears in Collections: 气候变化与战略
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作者单位: Dept. of Water & Land Management, VTU, Belagavi590018, India; The School of Environment and Natural Resources, Doon University, Dehradun, India
Recommended Citation:
Patil N.S.,Chetan N.L.,Nataraja M.,et al. Climate change scenarios and its effect on groundwater level in the Hiranyakeshi watershed[J]. Groundwater for Sustainable Development,2020-01-01,10