Erosion of the Damietta Promontary, the Nile Delta

Fanos, A.M.; Khafagy, A. A.; Komar, Paul D.

doi:10.1061/9780872629332.247

Cited by 7 publications

(7 citation statements)

References 3 publications

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“…(C) Guadiana delta, Spain/Portugal (after Morales, 1997). (D) Damietta lobe of the Nile delta, Egypt (after Sestini, 1989; Fanos et al ., 1993; Benninger et al ., 1998). Note the massive sand sheets developing updrift of the river mouths.…”

Section: Sf Gheorghe Lobementioning

confidence: 99%

“…However, inside the lagoon, there are numerous elongate sandy ridges formed of fine, moderately well‐sorted sand (El‐Askary & Lofty, 1980) that represent former strandlines (Sneh & Weissbrod, 1973; Coutellier & Stanley, 1987; Sestini, 1989). These beach ridges were probably generated as barrier islands or spits in much the same way as the spit–marsh complex built since 1800 east of the Damietta mouth (Sestini, 1989; Fanos et al ., 1991, 1993). The sediment drift at the Damietta mouth is extremely high (i.e.…”

Section: Other Asymmetric Deltasmentioning

confidence: 99%

“…The sediment drift at the Damietta mouth is extremely high (i.e. in the order of 400 000 m 3 year −1 ; Fanos et al ., 1991, 1993). Sediment transfer paths across the mouth include the extension and periodic breaking of a subaqueous spit from the west bank and transfer as swash bars (Sestini, 1989).…”

Section: Other Asymmetric Deltasmentioning

confidence: 99%

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Wave‐influenced deltas: geomorphological implications for facies reconstruction

2003

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A process-based facies model for asymmetric wave-influenced deltas predicts significant river-borne muds with potentially lower quality reservoir facies in prodelta and downdrift areas, and better quality sand in updrift areas. Many ancient barrier-lagoon systems and 'offshore bars' may be better reinterpreted as components of large-scale asymmetric wave-influenced deltaic systems. The proposed model is based on a re-evaluation of several modern examples. An asymmetry index A is defined as the ratio between the net longshore transport rate at the mouth (in m 3 year) and river discharge (in 10 6 m 3 month )1 ).Symmetry is favoured in deltas with an index below 200 (e.g. Tiber, lobes of the Godavari delta, Rosetta lobe of the Nile, Ebro), whereas deltas with a higher index are asymmetric (e.g. Danube -Sf. Gheorghe lobe, Brazos, Damietta lobe of the Nile). Periodic deflection of the river mouth for significant distances in the downdrift direction occurs in extreme cases of littoral drift dominance (e.g. Mahanadi), resulting in a series of randomly distributed, quasi-parallel series of sand spits and channel fills. Asymmetric deltas show variable proportions of river-, wave-and tide-dominated facies both among and within their lobes. Bayhead deltas, lagoons and barrier islands form naturally in prograding asymmetric deltas and are not necessarily associated with transgressive systems. This complexity underlines the necessity of interpreting ancient depositional systems in a larger palaeogeographic context.

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Section: Sf Gheorghe Lobementioning

confidence: 99%

Section: Other Asymmetric Deltasmentioning

confidence: 99%

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Wave‐influenced deltas: geomorphological implications for facies reconstruction

2003

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“…As discussed previously, there is a continuum between fluvial-dominated deltas and wave-dominated deltas, and many of the world's deltas are similar to the Portage River delta, being asymmetric and showing strong effects of longshore drift. Similar deltas include the Mahanadi Delta of India (Mohanti, 1993) and the Damietta Lobe of the Nile Delta (Fanos et al, 1993). The evolution of the Portage River delta can be reconstructed (Fig.…”

Section: Wave-influenced Delta Modelmentioning

confidence: 98%

Re-interpreting Great Lakes shorelines as components of wave-influenced deltas: An example from the Portage River delta (Lake Erie)

Evans

Clark

2011

Journal of Great Lakes Research

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“…It protruded seawards by a distance of about 5-8 km within the period from 1800 to 1900 (Sestini, 1976). The maximum seaward growth was in 1912 mapped shoreline (Fanos, et al, 1992). A reversed state from accretion to erosion began around 1900 due to reduction in the sediment load carried by the Nile River to the Damietta Branch.…”

Section: Study Areamentioning

confidence: 99%

Three Decades Monitoring of Shoreline Change Pattern of Damietta Promontory, Nile Delta, Egypt

El-Gamal¹,

Balbaa²,

Rashed

et al. 2020

AST

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The Nile Delta is located on the Egyptian Mediterranean coast extending along nearly 240 km from the east of Alexandria to Port Said. The coastal area of the Nile Delta Promontories has been suffering extensive erosion problem. This was achieved after the construction of many water regulation structures in Nile River as dams and barrages, particularly the Aswan High Dam. It has nearly stopped the sediment flux carried by the Nile River to the Delta. This process has caused the Mediterranean Sea to reshape the Nile Delta coastal area. In order to cease these problems several engineering hard structures have been built. These structures avoided in ceasing the problem in the site of construction but shifted the erosion problem to the adjacent sites. This study aimed to analyze the shoreline change pattern on the term of three decades during the period between 1985 to 2015 at the coastal strip of Damietta Promontory and the impact of these protective structures on the coastal area. This was accomplished by the automated delineation of the successive shorelines covering this period using remote sensing imagery. The shorelines were extracted using the MNDWI index. The extracted shorelines were manipulated through the Digital Shoreline Analysis System (DSAS) software. The shoreline change rates were compared with sediments grain size for the past thirty years, heavy minerals content and radioactivity of recent marine sediment samples collected from different locations of marine profiles over the study area. The study revealed that Damietta Promontory has suffered from erosion during the study period reached its maximum shoreline retreat at the eastern side, nearly – 43 m/y. The total cumulative shoreline regression during the study period at this area was 1311m. The relation between the shoreline change process (erosion or accretion) and the physical parameters of coastal sediment showed that; as erosion increases, the heavy minerals content and radioactivity increases, while the mean grain size decreases and vice versa.

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Erosion of the Damietta Promontary, the Nile Delta

Cited by 7 publications

References 3 publications

Wave‐influenced deltas: geomorphological implications for facies reconstruction

Wave‐influenced deltas: geomorphological implications for facies reconstruction

Re-interpreting Great Lakes shorelines as components of wave-influenced deltas: An example from the Portage River delta (Lake Erie)

Three Decades Monitoring of Shoreline Change Pattern of Damietta Promontory, Nile Delta, Egypt

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