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GroMoPo Metadata for Wadi Watir delta model

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Created: Feb 07, 2023 at 6:22 p.m.
Last updated: Feb 07, 2023 at 6:23 p.m.
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The Wadi Watir delta, in the arid Sinai Peninsula, Egypt, contains an alluvial aquifer underlain by impermeable Precambrian basement rock. The scarcity of rainfall during the last decade, combined with high pumping rates, resulted in degradation of water quality in the main supply wells along the mountain front, which has resulted in reduced groundwater pumping. Additionally, seawater intrusion along the coast has increased salinity in some wells. A three-dimensional (3D) groundwater flow model (MODFLOW) was calibrated using groundwater-level changes and pumping rates from 1982 to 2009; the groundwater recharge rate was estimated to be 1.58 x 10(6) m(3)/year. A variable-density flow model (SEAWAT) was used to evaluate seawater intrusion for different pumping rates and well-field locations. Water chemistry and stable isotope data were used to calculate seawater mixing with groundwater along the coast. Geochemical modeling (NETPATH) determined the sources and mixing of different groundwaters from the mountainous recharge areas and within the delta aquifers; results showed that the groundwater salinity is controlled by dissolution of minerals and salts in the aquifers along flow paths and mixing of chemically different waters, including upwelling of saline groundwater and seawater intrusion. Future groundwater pumping must be closely monitored to limit these effects.

Subject Keywords



Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
North Latitude
East Longitude
South Latitude
West Longitude


Additional Metadata

Name Value
DOI 10.1007/s10040-013-1031-y
Depth 110
Scale < 100 km²
Layers >20 layers
Purpose groundwater resources;salt water intrusion
GroMoPo_ID 72
IsVerified True
Model Code SEAWAT
Model Link
Model Time 1982-2009
Model Year 2013
Model Authors Mustafa A. Eissa, James M. Thomas, Greg Pohll, Ronald L. Hershey, Kamal A. Dahab, Maher I. Dawoud, Abdelfattah ElShiekh, Mohamed A. Gomaa
Model Country Egypt
Data Available report/paper only;Geological input available;Geological cross-section available
Developer Email
Dominant Geology unconsolidated
Developer Country Egypt
Publication Title Groundwater resource sustainability in the Wadi Watir delta, Gulf of Aqaba, Sinai, Egypt
Original Developer No
Additional Information
Integration or Coupling Solute transport
Evaluation or Calibration static water levels;contaminant concentrations
Geologic Data Availability

How to Cite

GroMoPo, D. Zamrsky (2023). GroMoPo Metadata for Wadi Watir delta model, HydroShare,

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


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