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GroMoPo Metadata for Isfahan-Borkhar aquifer MODFLOW model


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Created: Feb 08, 2023 at 3:36 a.m.
Last updated: Feb 08, 2023 at 3:36 a.m.
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Abstract

Recently, many studies have investigated the effect of climate change on groundwater resources in semiarid and arid areas and have shown adverse effects on groundwater recharge and water level. However, only a few studies have shown suitable strategies for reducing these adverse effects. In this study, climate conditions were predicted for the future period of 2020-2044, under the emission scenarios of RCP2.6, RCP4.5, and RCP8.5, for Isfahan-Borkhar aquifer, Isfahan, Iran, using MODFLOW-2000 (MODFLOW is United States Geological Survey product). Results showed that the average groundwater level of the aquifer would decrease to 13, 15, and 16 m in 2012 to 2044 approximately under RCP2.6, RCP4.5, and RCP8.5 scenarios, respectively. Then, three groundwater sustainability management scenarios were defined that included 10%, 30%, and 50% reduction in groundwater extraction. These strategies simulated the reduced negative effects of climate change on the aquifer. The results showed that decreases in water withdrawal rates of 10%, 30%, and 50% under RCP8.5 scenario (critical scenario) could decrease the mean groundwater level by 14, 11, and 7 m, respectively. The main result of the study showed that 50% reduction in groundwater withdrawal may increase the groundwater levels significantly in order to restore the aquifer sustainability in the study area. In this study, with assuming that the current harvest of wells in the future period is constant, so the results of studies showed that for the aquifer's sustainability management, the water abstraction from the aquifer should reduce up to 50% of the existing wells. Changing the irrigation method from surface to subdroplet irrigation plays an important role in reducing the withdrawal from the aquifer. The results of a study in Iran have shown that the change in the irrigation method from surface to subdroplet irrigation causes a 40% reduction in water use for agriculture.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Iran
North Latitude
32.9874°
East Longitude
51.9473°
South Latitude
32.5504°
West Longitude
51.1516°

Content

Additional Metadata

Name Value
DOI 10.1002/rra.3463
Depth 383
Scale 1 001 - 10 000 km²
Layers 1
Purpose Groundwater resources;Scientific investigation (not related to applied problem)
GroMoPo_ID 172
IsVerified True
Model Code MODFLOW
Model Link https://doi.org/10.1002/rra.3463
Model Time SS
Model Year 2019
Model Authors Ostad-Ali-Askari, K; Kharazi, HG; Shayannejad, M; Zareian, MJ
Model Country Iran
Data Available Report/paper only
Developer Email ghorbanizadeh.iau.1980@gmail.com
Dominant Geology Siliciclastic sedimentary (sandstones, shales)
Developer Country Iran
Publication Title Effect of management strategies on reducing negative impacts of climate change on water resources of the Isfahan-Borkhar aquifer using MODFLOW
Original Developer No
Additional Information In this study, climate conditions werepredicted for the future period of 2020–2044, under the emission scenarios ofRCP2.6, RCP4.5, and RCP8.5, for Isfahan–Borkhar aquifer, Isfahan, Iran. Then, three groundwater sustainability management scenarios weredefined that included 10%, 30%, and 50% reduction in groundwater extraction. Thesestrategies simulated the reduced negative effects of climate change on the aquifer.
Integration or Coupling Water management;Climate change
Evaluation or Calibration Static water levels
Geologic Data Availability Yes

How to Cite

GroMoPo, E. Leijnse (2023). GroMoPo Metadata for Isfahan-Borkhar aquifer MODFLOW model, HydroShare, http://www.hydroshare.org/resource/a2c905216a73423fa9c3704671d65538

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/
CC-BY

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