scholarly journals Applying DSAS tool to detect coastal changes along Nile Delta, Egypt

Author(s):  
Rasha M. Abou Samra ◽  
R.R. Ali
Keyword(s):  
Author(s):  
A.A. Khafagy ◽  
M.G. Naffaa ◽  
A.M. Fanos ◽  
R.G. Dean
Keyword(s):  

1974 ◽  
Vol 1 (14) ◽  
pp. 38
Author(s):  
Evald Nielsen

The paper deals with the initial ideas and concepts for development of a morphological model for a Delta coast, having particularly the Nile Delta in mind. The paper concentrates on the offshore zone, in which sediment is assumed primarily to be transported in suspension and during periods of sufficient agitation by the combined action of waves and ocean currents. In the Nile Delta great offshore changes take place due to the deprivation of the shelf area of Nile sediments by the closure of the Aswan High Dam, and serious nearshore long-range changes are expected to result from the changes to the offshore morphology. The modeling aids in establishing the mechanisms of the Delta shore, but the primary goal of the model is reliable prediction of future coastal changes. Fundamentally, the modeling is based on verification of the model - by trial and error - against known states of the model domain. Part A of the paper deals with the general concepts, while especially the entrainment of sediments is treated in Part B of the paper, yielding practical formulas for determining the threshold values for sediment entrainment by unidirectional flow and by wave action.


2007 ◽  
Author(s):  
James Keggin ◽  
Walter Rietveld ◽  
Mark Benson ◽  
Ted Manning ◽  
Peter Cook ◽  
...  
Keyword(s):  

2020 ◽  
pp. 13-61
Author(s):  
Natalia Małecka-Drozd

The 3rd millennium BC appears to be a key period of development of the historical settlement landscape in ancient Egypt. After the unification of the country, the process of disappearance of the predynastic socio-political structures and settlement patterns associated with them significantly accelerated. Old chiefdoms, along with their centres and elites, declined and vanished. On the other hand, new settlements emerging in various parts of the country were often strictly related to the central authorities and formation of the new territorial administration. Not negligible were climatic changes, which influenced the shifting of the ecumene. Although these changes were evolutionary in their nature, some important stages may be recognized. According to data obtained during surveys and excavations, there are a number of sites that were considerably impoverished and/or abandoned before and at the beginning of the Old Kingdom. On the other hand, during the Third and Fourth Dynasties some important Egyptian settlements have emerged in the sources and begun their prosperity. Architectural remains as well as written sources indicate the growing interest of the state in the hierarchy of landscape elements and territorial structure of the country.


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