At the beginning of the 20 th century, several studies were performed to deliver the Mediterranea... more At the beginning of the 20 th century, several studies were performed to deliver the Mediterranean Sea water to the Qattara Depression through a canal for hydropower generation by utilizing the difference in the water levels. Main objectives of the current study are to: a) create a hydrological data bank for the depression, and b) determine the expected evaporation rate from the accumulated saline water in the Lagoon. The study methodology has been performed utilizing the recent tools of analysis that had not been available for the previous studies of the project such as; efficient numerical models, geographic information system (GIS), and Digital Elevation Models (DEM).
Partial penetration, especially for confined aquifers, may significantly affect the associated we... more Partial penetration, especially for confined aquifers, may significantly affect the associated well(s) hydraulics due to the incidence of vertical flow in the vicinity of the well. This induces additional head losses, affects the potential pumping rate, and the related peizometeric head ...
World Environmental and Water Resources Congress 2009, 2009
This paper presents a simplified approach for estimating the additional drawdown due to partially... more This paper presents a simplified approach for estimating the additional drawdown due to partially penetrating wells in confined and semi‐confined aquifers. Hantush's Equation usually provides acceptable representation of the associated flow field, should this equation be properly ...
Egypt is considered an arid country. The main and almost exclusive source of water is the River N... more Egypt is considered an arid country. The main and almost exclusive source of water is the River Nile. The second source of water is groundwater whereas a variety of aquifer systems exist. Nile Delta aquifer is a large freshwater reservoir which is mainly replenished from irrigation activities. A proper management and development of such aquifers should be directed to satisfy water requirements. Groundwater development in the northern region is restricted due to the risks of inland movement of saline water/ fresh water interface to properly manage groundwater in this region. To achieve the proper management of groundwater resource in this region, it is important to understand the patterns of seawater movement and mixing between fresh and saline groundwater. In order to understand the salinity distribution and seawater movement, the actual heterogeneity and stratigraphy of the Nile Delta aquifer should be determined. The conventional modeling concept of the Nile Delta aquifer had assumed the aquifer as a homogenous media of graded sand and gravel with a clay cap at the top. In this study, assessment of recent stratigraphy of the Nile Delta aquifer is carried out using litho-logical data from the new drilled groups of multi depths wells. These wells has been designed and implemented especially to investigate the actual litho-stratigraphy and heterogeneity of the aquifer in the northern and middle region of the Nile Delta as a part of National Groundwater Quality Monitoring program, by Research Institute for Groundwater (RIGW). In this study, new configuration of the Nile Delta aquifer system has been obtained by assessing the Hydro-geological stratification of Nile Delta aquifer using RockWorks software. The study concluded that the northern part the aquifer is devolved into multi-layered aquifer system while in the southern part; the aquifer constitutes sand and gravel facies. Furthermore, this study assessed the Hydrochemistry status of the groundwater in the Nile Delta aquifer by using the results of chemical analysis of multi depths points (25-650 m) of the National Groundwater Quality Monitoring network. This assessment confirmed that there is a multi wedge system for the sea water intrusion in the Nile Delta aquifer. The shape and direction of the wedges differs between the different layers of the aquifer according to the salinity and density of the groundwater present in each layer. This new multi system wedge can be used to model and simulate the new conceptual and configuration of the Nile Delta aquifer to fulfill proper groundwater development and management. [Nofal E. R. , Amer M. A., El-Didy S. M. and Akram M. Fekry. Sea Water Intrusion in Nile Delta in Perspective of New Configuration of the Aquifer Heterogeneity Using the Recent Stratigraphy Data. J Am Sci 2015;11(6):281-292]. (ISSN: 1545-1003). http://www.jofamericanscience.org. 33
At the beginning of the 20 th century, several studies were performed to deliver the Mediterranea... more At the beginning of the 20 th century, several studies were performed to deliver the Mediterranean Sea water to the Qattara Depression through a canal for hydropower generation by utilizing the difference in the water levels. Main objectives of the current study are to: a) create a hydrological data bank for the depression, and b) determine the expected evaporation rate from the accumulated saline water in the Lagoon. The study methodology has been performed utilizing the recent tools of analysis that had not been available for the previous studies of the project such as; efficient numerical models, geographic information system (GIS), and Digital Elevation Models (DEM).
Partial penetration, especially for confined aquifers, may significantly affect the associated we... more Partial penetration, especially for confined aquifers, may significantly affect the associated well(s) hydraulics due to the incidence of vertical flow in the vicinity of the well. This induces additional head losses, affects the potential pumping rate, and the related peizometeric head ...
World Environmental and Water Resources Congress 2009, 2009
This paper presents a simplified approach for estimating the additional drawdown due to partially... more This paper presents a simplified approach for estimating the additional drawdown due to partially penetrating wells in confined and semi‐confined aquifers. Hantush's Equation usually provides acceptable representation of the associated flow field, should this equation be properly ...
Egypt is considered an arid country. The main and almost exclusive source of water is the River N... more Egypt is considered an arid country. The main and almost exclusive source of water is the River Nile. The second source of water is groundwater whereas a variety of aquifer systems exist. Nile Delta aquifer is a large freshwater reservoir which is mainly replenished from irrigation activities. A proper management and development of such aquifers should be directed to satisfy water requirements. Groundwater development in the northern region is restricted due to the risks of inland movement of saline water/ fresh water interface to properly manage groundwater in this region. To achieve the proper management of groundwater resource in this region, it is important to understand the patterns of seawater movement and mixing between fresh and saline groundwater. In order to understand the salinity distribution and seawater movement, the actual heterogeneity and stratigraphy of the Nile Delta aquifer should be determined. The conventional modeling concept of the Nile Delta aquifer had assumed the aquifer as a homogenous media of graded sand and gravel with a clay cap at the top. In this study, assessment of recent stratigraphy of the Nile Delta aquifer is carried out using litho-logical data from the new drilled groups of multi depths wells. These wells has been designed and implemented especially to investigate the actual litho-stratigraphy and heterogeneity of the aquifer in the northern and middle region of the Nile Delta as a part of National Groundwater Quality Monitoring program, by Research Institute for Groundwater (RIGW). In this study, new configuration of the Nile Delta aquifer system has been obtained by assessing the Hydro-geological stratification of Nile Delta aquifer using RockWorks software. The study concluded that the northern part the aquifer is devolved into multi-layered aquifer system while in the southern part; the aquifer constitutes sand and gravel facies. Furthermore, this study assessed the Hydrochemistry status of the groundwater in the Nile Delta aquifer by using the results of chemical analysis of multi depths points (25-650 m) of the National Groundwater Quality Monitoring network. This assessment confirmed that there is a multi wedge system for the sea water intrusion in the Nile Delta aquifer. The shape and direction of the wedges differs between the different layers of the aquifer according to the salinity and density of the groundwater present in each layer. This new multi system wedge can be used to model and simulate the new conceptual and configuration of the Nile Delta aquifer to fulfill proper groundwater development and management. [Nofal E. R. , Amer M. A., El-Didy S. M. and Akram M. Fekry. Sea Water Intrusion in Nile Delta in Perspective of New Configuration of the Aquifer Heterogeneity Using the Recent Stratigraphy Data. J Am Sci 2015;11(6):281-292]. (ISSN: 1545-1003). http://www.jofamericanscience.org. 33
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