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| Created: | Feb 07, 2023 at 8:08 p.m. | |
| Last updated: | Feb 07, 2023 at 8:09 p.m. | |
| Citation: | See how to cite this resource |
| Sharing Status: | Public |
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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.
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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
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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