GroMoPo Metadata for Modjo River catchment MODFLOW model

Authors:

GroMoPo E. Leijnse

Owners:

gromopo_admin

Type:

Resource

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The size of this resource is 2.2 KB

Created:

Feb 08, 2023 at 4:47 a.m.

Last updated:

Feb 08, 2023 at 4:47 a.m.

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Abstract

In recent years, groundwater pumping has increased for domestic, industrial, and irrigation use in the Modjo River catchment. Understanding changes in groundwater levels is crucial for the sustainable use and management of aquifer. This study investigates the groundwater flow system and aquifer response to increased groundwater pumping and reduced recharge using the calibrated steady-state groundwater level and budget as a baseline. The groundwater flow corresponds to the direction of the Modjo River flow, following the topographic gradient. The simulated groundwater budget indicates that recharge from precipitation and surface water (crater lakes and river) are the main inflow to the aquifer, while the outflow from the aquifer is due to groundwater pumping, natural subsurface flow to downstream area, and base flow. Analysis of the different scenarios reveals that both an increase in well pumping and a decline in recharge resulted in a decrease of the base flow to Bishoftu crater lakes and Mojo River, and to the downstream subsurface flow. In conclusion, increasing human demand for groundwater and variability in recharge will affect groundwater contribution to surface water and ultimately will be a source of concern in the future for both environmental flows and groundwater management.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

Ethiopia

North Latitude

9.0106°

East Longitude

39.1456°

South Latitude

8.3270°

West Longitude

39.0230°

Streets Terrain Satelite

Spatial Extent

Content

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Additional Metadata

Name	Value
DOI	10.1007/s40808-020-01040-0
Depth	1000
Scale	1 001 - 10 000 kmÂ²
Layers	1
Purpose	Groundwater resources
GroMoPo_ID	214
IsVerified	True
Model Code	MODFLOW
Model Link	https://doi.org/10.1007/s40808-020-01040-0
Model Time	SS
Model Year	2021
Model Authors	Gebere, A; Kawo, NS; Karuppannan, S; Hordofa, AT; Paron, P
Model Country	Ethiopia
Data Available	Report/paper only
Developer Email	nafyad.serre@gmail.com
Dominant Geology	Model focuses on multiple geologic materials
Developer Country	Ethiopia; USA; Netherlands
Publication Title	Numerical modeling of groundwater flow system in the Modjo River catchment, Central Ethiopia
Original Developer	No
Additional Information	This study investigates the groundwater flow system and aquifer response to increased groundwater pumping and reduced recharge using the calibrated steady-state groundwater level and budget as a baseline. The groundwater flow corresponds to the direction of the Modjo River flow, following the topographic gradient. The simulated groundwater budget indicates that recharge from precipitation and surface water (crater lakes and river) are the main inflow to the aquifer, while the outflow from the aquifer is due to groundwater pumping, natural subsurface flow to downstream area, and base flow.
Integration or Coupling	Water use;Water management
Evaluation or Calibration	Static water levels;Dynamic water levels
Geologic Data Availability	Yes

How to Cite

GroMoPo, E. Leijnse (2023). GroMoPo Metadata for Modjo River catchment MODFLOW model, HydroShare, http://www.hydroshare.org/resource/d11eae822f9e497d9e6173f15bef6c92

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

http://creativecommons.org/licenses/by/4.0/

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