The delimited locations of the two sites are in Abu Quir Bay on the northwestern margin of Egypt’s Nile delta. Archaeologically, these two cities had sunk by natural disasters, flooding, earthquake, tsunami, and consequent subsidence. Specifically, they were lying at river mouths that flooded annually but related to urban activity and man-made structures were built directly on under consolidated sediment that lead to geohazards impact. Historically, it was occupied low-lying coastal delta along the Canopic channel of the Nile. The borders of both submerged cities were delimited on the mosaic image where, Heraklieon may covered an area about 600 × 1000 m, while East Canopus may covered 550 × 800 m that situated 1.9 Km at the eastern side from the Abo Qir port.įigure 1: The study area in Abu Qir Bay of Alexandria, including a map of Egypt showing the location of the study area on it.Ību Qir Bay is considered more or less utilized resource of tourism, agriculture and on the Mediterranean Sea in Egypt, which Abu-Qir bay has characterized by a great historical importance two ancient Greek cities, Heraklieon and East Canopus ( Figure 2). The large flat rocky area may be interpreted as the floors of the submerged cities. The detection of scattered remains of archaeological structures assumed to be parts of historical blocks, buried archaeological feature. The isolated reflections pattern has been interpreted as rocky outcrops and archaeological remains of the two ancient Greek cities, Heraklieon and East Canopus. The seabed sediments of the study area were classified into four types fine sand, medium sand, very fine sand and silty clay. Moreover Pattern with isolated reflections belongs to archaeological remains and rocky outcrop areas. Four types of backscattered patterns were recognized: Pattern of lighter tones corresponds to coarse and medium sediments, Darker tones pattern corresponds fine to very fine sand, tonal patches pattern confined to the transition zone from fine to coarse grained sediment. The aim of this study is to get a recent seafloor mapping of the seabed characteristics applying side scan sonar sonography, single beam echo-sounding with QTC seabed classification data, remotely operated under water vehicle (ROV) imageries, and sediment analysis in the study area of the Abu-Quir bay, Alexandria, Egypt. Acoustic seabed classification and mapping are possible by using a wide range of acoustic imaging systems. Wolfram Language & System Documentation Center.The recent development techniques of acoustic sound survey can provide clearly the inferences of seabed texture, grain size or habitat, seafloor bathymetry and sunken archaeology.
"GeoImage." Wolfram Language & System Documentation Center. Wolfram Research (2017), GeoImage, Wolfram Language function, (updated 2019).
GeoImage returns an image whose MetaInformation option setting contains copyright and other information about the source of geo imagery, as well as geo tagging information.Ĭite this as: Wolfram Research (2017), GeoImage, Wolfram Language function, (updated 2019).