GroMoPo Metadata for Rib catchment model

Authors:

GroMoPo E. Leijnse

Owners:

gromopo_admin

Type:

Resource

Storage:

The size of this resource is 1.7 KB

Created:

Feb 08, 2023 at 1:37 p.m.

Last updated:

Feb 08, 2023 at 1:38 p.m.

Citation:

See how to cite this resource

Sharing Status:	Public
Views:	981
Downloads:	218
+1 Votes:	Be the first one to this.
Comments:	No comments (yet)

Abstract

Study region: Rib catchment in the Lake Tana sub-basin, Upper Blue Nile River, Ethiopia. Study focus: This paper aimed to assess the impacts of future increase in abstraction and recharge reduction on the groundwater, groundwater availability, and groundwater-surface waters interaction based on a three-dimensional groundwater flow modeling. Calibration was made under the steady state condition. Scenario analysis performed for 1) increase in abstraction, 2) decrease in recharge, 3) the worst-case scenario that combined the aforementioned two scenarios and with additional extraction for irrigation, and 4) for the optimal-case scenario, which considers 5% recharge increase for the worst-case scenario model. New hydrological insights for the region: It is found that the groundwater flows from uplands toward the Tana Lake. The total inflow to and outflow from the system in the calibrated model are 1733480 m(3)/d and 1840451 m(3)/d, respectively. Groundwater level drop, reduction in base flows to surface waters, and in evapotranspiration flux compared to the calibrated values encountered for all scenarios, which are significant (mean 38.4 m, 28.5-100 %, and 97.8 %, respectively) for the worst-case scenario. On the other hand, an increase in groundwater level (mean 9.8 m), base flows (0-14.4 %), and evapotranspiration flux (29.5 %) observed for the optimal scenario when compared to the worst-case scenario results. Results suggest that groundwater management measures should be implemented to mitigate the impacts.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

Ethiopia

North Latitude

15.2300°

East Longitude

47.4700°

South Latitude

4.0900°

West Longitude

32.7400°

Streets Terrain Satelite

Spatial Extent

Content

Learn more about the BagIt download

Select a file to see file type metadata.

Additional Metadata

Name	Value
DOI	10.1016/j.ejrh.2021.100831
Depth	400
Scale	1 001 - 10 000 kmÂ²
Layers	2
Purpose	Groundwater resources
GroMoPo_ID	237
IsVerified	True
Model Code	MODFLOW
Model Link	https://doi.org/10.1016/j.ejrh.2021.100831
Model Time	SS
Model Year	2021
Model Authors	Mamo, S; Birhanu, B; Ayenew, T; Taye, G
Model Country	Ethiopia
Data Available	Report/paper only
Developer Email	sileshi.mamo@bdu.edu.et
Dominant Geology	Model focuses on multiple geologic materials
Developer Country	Ethiopia
Publication Title	Three-dimensional groundwater flow modeling to assess the impacts of the increase in abstraction and recharge reduction on the groundwater, groundwater availability and groundwater-surface waters interaction: A case of the rib catchment in the Lake Tana sub-basin of the Upper Blue Nile River, Ethiopia
Original Developer	No
Additional Information	This paper aimed to assess the impacts of future increase in abstraction and recharge reduction on the groundwater, groundwater availability, and groundwater-surface waters interaction based on a three-dimensional groundwater flow modeling.
Integration or Coupling	Water use;Water management
Evaluation or Calibration	Static water levels
Geologic Data Availability	Yes

How to Cite

GroMoPo, E. Leijnse (2023). GroMoPo Metadata for Rib catchment model, HydroShare, http://www.hydroshare.org/resource/84fd7125daf842d1affc85d3927c9f09

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

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

Comments

There are currently no comments

	Name:
	Organization:
	Email:
	Address:
	Phone:
	Homepage:
	Author Identifiers: