DOI: 10.5194/hess-19-4165-2015
Scopus记录号: 2-s2.0-84944929997
论文题名: Coupled modeling approach to assess climate change impacts on groundwater recharge and adaptation in arid areas
作者: Hashemi H ; , Uvo C ; B ; , Berndtsson R
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2015
卷: 19, 期: 10 起始页码: 4165
结束页码: 4181
语种: 英语
Scopus关键词: Abstracting
; Aquifers
; Calibration
; Catchments
; Climate change
; Climate models
; Floods
; Groundwater
; Groundwater flow
; Rain
; Recharging (underground waters)
; Runoff
; Surface water resources
; Water supply
; Artificial recharge
; Climate change impact
; Climate variables
; Future climate scenarios
; Global coupled model
; Ground water recharge
; Groundwater hydraulics
; Rainfall-runoff modeling
; Groundwater resources
; arid region
; calibration
; catchment
; climate change
; conceptual framework
; coupling
; discharge
; flash flood
; groundwater
; groundwater flow
; model validation
; rainfall-runoff modeling
; recharge
; water level
; water supply
; Iran
英文摘要: The effect of future climate scenarios on surface and groundwater resources was simulated using a modeling approach for an artificial recharge area in arid southern Iran. Future climate data for the periods of 2010-2030 and 2030-2050 were acquired from the Canadian Global Coupled Model (CGCM 3.1) for scenarios A1B, A2, and B1. These scenarios were adapted to the studied region using the delta-change method. A conceptual rainfall-runoff model (Qbox) was used to simulate runoff in a flash flood prone catchment. The model was calibrated and validated for the period 2002-2011 using daily discharge data. The projected climate variables were used to simulate future runoff. The rainfall-runoff model was then coupled to a calibrated groundwater flow and recharge model (MODFLOW) to simulate future recharge and groundwater hydraulic heads. As a result of the rainfall-runoff modeling, under the B1 scenario the number of floods is projected to slightly increase in the area. This in turn calls for proper management, as this is the only source of fresh water supply in the studied region. The results of the groundwater recharge modeling showed no significant difference between present and future recharge for all scenarios. Owing to that, four abstraction and recharge scenarios were assumed to simulate the groundwater level and recharge amount in the studied aquifer. The results showed that the abstraction scenarios have the most substantial effect on the groundwater level and the continuation of current pumping rate would lead to a groundwater decline by 18 m up to 2050. © Author(s) 2015. CC Attribution 3.0 License. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78408
Appears in Collections: 气候变化事实与影响
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作者单位: Center for Middle Eastern Studies, Department of Water Resources Engineering, Lund University, Box 118, Lund, Sweden; Department of Water Resources Engineering, Lund University, Box 118, Lund, Sweden
Recommended Citation:
Hashemi H,, Uvo C,B,et al. Coupled modeling approach to assess climate change impacts on groundwater recharge and adaptation in arid areas[J]. Hydrology and Earth System Sciences,2015-01-01,19(10)