Tracing of the defunct Canopic Nile branch using geoelectrical resistivity data around Itay El-Baroud area, Nile Delta, Egypt

El-Qady, Gad; Shaaban, Hany; El-Said, A; Ghazala, Hosni; El‐Shahat, Adam

doi:10.1088/1742-2132/8/1/010

Cited by 6 publications

(3 citation statements)

References 10 publications

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“…Nevertheless, taking the information of the SoE maps into account, the potential channels have been abandoned for at least 100 years. The anomalies might indicate promising locations for future ground-based investigations, e.g., for drillings and electric resistivity surveying, which have been successfully applied to detect near-surface fluvial deposits across the delta on varying spatial scales (e.g., Andres and Wunderlich, 1991;El Gamili et al, 2001;El-Qady et al, 2011;Lange-Athinodorou et al, 2019).…”

Section: Anomalies Of Potential Former River Coursesmentioning

confidence: 99%

Mapping buried paleogeographical features of the Nile Delta (Egypt) using the Landsat archive

Ullmann¹,

Nill

Schiestl³

et al. 2020

E&G Quaternary Sci. J.

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Abstract. The contribution highlights the use of Landsat spectral-temporal metrics (STMs) for the detection of surface anomalies that are potentially related to buried near-surface paleogeomorphological deposits in the Nile Delta (Egypt), in particular for a buried river branch close to Buto. The processing was completed in the Google Earth Engine (GEE) for the entire Nile Delta and for selected seasons of the year (summer/winter) using Landsat data from 1985 to 2019. We derived the STMs of the tasseled cap transformation (TC), the Normalized Difference Wetness Index (NDWI), and the Normalized Difference Vegetation Index (NDVI). These features were compared to historical topographic maps of the Survey of Egypt, CORONA imagery, the digital elevation model of the TanDEM-X mission, and modern high-resolution satellite imagery. The results suggest that the extent of channels is best revealed when differencing the median NDWI between summer (July/August) and winter (January/February) seasons (ΔNDWI). The observed difference is likely due to lower soil/plant moisture during summer, which is potentially caused by coarser-grained deposits and the morphology of the former levee. Similar anomalies were found in the immediate surroundings of several Pleistocene sand hills (“geziras”) and settlement mounds (“tells”) of the eastern delta, which allowed some mapping of the potential near-surface continuation. Such anomalies were not observed for the surroundings of tells of the western Nile Delta. Additional linear and meandering ΔNDWI anomalies were found in the eastern Nile Delta in the immediate surroundings of the ancient site of Bubastis (Tell Basta), as well as several kilometers north of Zagazig. These anomalies might indicate former courses of Nile river branches. However, the ΔNDWI does not provide an unambiguous delineation.

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Section: Anomalies Of Potential Former River Coursesmentioning

confidence: 99%

Mapping buried paleogeographical features of the Nile Delta (Egypt) using the Landsat archive

Ullmann¹,

Nill

Schiestl³

et al. 2020

E&G Quaternary Sci. J.

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“…Forward inversion gives good matching with field data to predict depth to water table and water type. Since there are no general guidelines for interpreting lithology of the contrasting resistivity layers, each area has its own conditions as in [16]. This means that interpretation must be based on local databases that include information on lithology and hydrogeology of the investigated intervals.…”

Section: -D Modelingmentioning

confidence: 99%

Sea Water Intrusion Modeling in Rashid Area of Nile Delta (Egypt) via the Inversion of DC Resistivity Data

Tarabees¹,

El-Qady²

2016

AJCC

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The current research focuses on the detection of sea water intrusion in Rashid area which is located about 75 km east to Alexandria, Egypt. For this purpose, geoelectrical survey was carried out using the Schlumberger Vertical Electric Sounding (VES) to identify freshwater thickness, sea water intrusion and estimate subsurface lithology. Seventeen VES stations were measured with current electrode separation (AB/2) ranging from 1.5 m to 100 m. Then, the VES data was interpreted using 1-D and 2-D inversion schemes of DC resistivity data based on least squares method with smoothness constrains. The inverted resistivity distribution at relatively shallow depth shows an important low resistivity zone that probably reflects salt water alteration zone (northern parts). Depth to the freshwater bearing layer reaches its maximum at the south and decreases towards the north. From quantitative interpretation, invasion of salt water started at depth about 10 m at north in the thickness of freshwater bearing layer ranging from 15 to 25 m, while at depth of about 120 m all the layers were saturated with salt water.

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“…mapped the ancient hydrological landscape in the Luxor area and estimated both an eastward and westward Nile migration rate of 2-3 km per 1000 years. In the Nile Delta region 17 , detected several segments of buried Nile distributaries and elevated mounds using geoelectrical resistivity surveys. Similarly, a study by Bunbury and Lutley 14 identified a segment of an ancient Nile channel, about 5000 years old, near the ancient town of Memphis (men-nefer).…”

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confidence: 99%

The Egyptian pyramid chain was built along the now abandoned Ahramat Nile Branch

Ghoneim,

Ralph,

Onstine

et al. 2024

Commun Earth Environ

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The largest pyramid field in Egypt is clustered along a narrow desert strip, yet no convincing explanation as to why these pyramids are concentrated in this specific locality has been given so far. Here we use radar satellite imagery, in conjunction with geophysical data and deep soil coring, to investigate the subsurface structure and sedimentology in the Nile Valley next to these pyramids. We identify segments of a major extinct Nile branch, which we name The Ahramat Branch, running at the foothills of the Western Desert Plateau, where the majority of the pyramids lie. Many of the pyramids, dating to the Old and Middle Kingdoms, have causeways that lead to the branch and terminate with Valley Temples which may have acted as river harbors along it in the past. We suggest that The Ahramat Branch played a role in the monuments’ construction and that it was simultaneously active and used as a transportation waterway for workmen and building materials to the pyramids’ sites.

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Tracing of the defunct Canopic Nile branch using geoelectrical resistivity data around Itay El-Baroud area, Nile Delta, Egypt

Cited by 6 publications

References 10 publications

Mapping buried paleogeographical features of the Nile Delta (Egypt) using the Landsat archive

Mapping buried paleogeographical features of the Nile Delta (Egypt) using the Landsat archive

Sea Water Intrusion Modeling in Rashid Area of Nile Delta (Egypt) via the Inversion of DC Resistivity Data

The Egyptian pyramid chain was built along the now abandoned Ahramat Nile Branch

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