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GroMoPo Metadata for Nubian Aquifer paleo-saltwater model


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Created: Feb 07, 2023 at 8:08 p.m.
Last updated: Feb 07, 2023 at 8:09 p.m.
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Abstract

A numerical groundwater model of the Nubian Aquifer System was established to prove the influence of rising seawater levels on the groundwater salinity in northern Egypt over the last 140,000 years. In addition, the impact of a groundwater recharge scenario for these 140,000 years, involving climatic change, on the saltwater/freshwater interface was investigated. Saltwater intrusion induced by rising water levels of the Mediterranean Sea led to salinisation from the Mediterranean Sea to the Qattara depression. This modeling approach was supported by a density-driven model setup and calculation. The modelled saltwater/freshwater interfaces partially fitted the observed ones, especially in the southern half of the Qattara depression. In other parts of the northern Nubian Aquifer System, the ingression of salt water was modelled adequately, but in the west, small regions of the measured interface were not. The development in the Qattara depression (Egypt) and Sirte basin (Libya) were investigated in more detail. The different behaviour in the Sirte basin may be due to high evapotranspiration rates in some former periods, salt solutions from the pre-Quaternary layers or saltwater infiltration from sabkha-like recent salt-bearing sediments.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Chad, Sudan, Lybia, Egypt
North Latitude
33.4044°
East Longitude
35.6369°
South Latitude
16.3120°
West Longitude
16.5592°

Content

Additional Metadata

Name Value
DOI 10.1007/s10040-010-0597-x
Depth 5000
Scale Other
Layers 11-15 layers
Purpose Groundwater resources;Salt water intrusion
GroMoPo_ID 126
IsVerified True
Model Code Feflow
Model Link https://doi.org/10.1007/s10040-010-0597-x
Model Time 140000BC-2000AD
Model Year 2010
Model Authors W. Gossel, A. Sefelnasr, P. Wycisk
Model Country Chad, Sudan, Lybia, Egypt
Data Available Report/paper only
Developer Email wolfgang.gossel@geo.uni-halle.de
Dominant Geology Unconsolidated sediments
Developer Country Germany
Publication Title Modelling of paleo-saltwater intrusion in the northern part of the Nubian Aquifer System, Northeast Africa
Original Developer No
Additional Information
Integration or Coupling Solute transport
Evaluation or Calibration Unsure
Geologic Data Availability

How to Cite

GroMoPo, D. Zamrsky (2023). GroMoPo Metadata for Nubian Aquifer paleo-saltwater model, HydroShare, http://www.hydroshare.org/resource/7da74ff7d76f427a958ad681807246c1

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

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

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