Ground Water Potentiality in Siwa and Baris Oases, Western Desert, Egypt

2021 ◽  
pp. 131-152
Author(s):  
Hosny Mahmoud Mahmoud Ezz El-Deen
Keyword(s):  
Ground Water ◽  
Western Desert

Ground-water sapping processes, Western Desert, Egypt

1997 ◽  
Vol 109 (1) ◽  
pp. 43-62 ◽  
Author(s):  
Wei Luo ◽  
Raymond E. Arvidson ◽  
Mohamed Sultan ◽  
Richard Becker ◽  
Mary Katherine Crombie ◽  
...  
Keyword(s):  
Ground Water ◽  
Western Desert

scholarly journals Radiocarbon Evidence for Holocene Recharge of Groundwater, Western Desert, Egypt

Radiocarbon ◽  
1980 ◽  
Vol 22 (3) ◽  
pp. 705-717 ◽  
Author(s):  
C Vance Haynes ◽  
Herbert Haas
Keyword(s):  
Ground Water ◽  
Late Holocene ◽  
Early Holocene ◽  
Western Desert ◽  
Playa Lakes ◽  
Carbon 14 ◽  
Water Analyses ◽  
Oxygen Stable Isotope ◽  
Dug Well ◽  
Apparent Age

During Pleistocene pluvial precipitation was sufficient for the maintenance of groundwater supported lakes and for the accumulation of playa lakes in wind-scoured depressions during the early Holocene pluvial. At places where ground water reaches near to the surface, wells (birs) have been dug and maintained in historic times. These birs have been used as sampling sites for water analyses, including carbon-14 levels, carbon and oxygen stable isotope ratios, tritium concentrations, and chemical data.All the waters from birs analyzed to date produced apparent radiocarbon ages ranging from late historic to early Holocene, and tritium analyses on some of these indicate no recharge during the Atomic age.Sources of error for the radiocarbon analyses, including exchange with atmospheric CO2, respiration by plant roots, and contact with carbonates of considerably older age, were evaluated. None of these factors have such an extreme impact on the measurements as to render the result invalid. Two trends revealed by these data are an increase in apparent age from northwest to southwest and with subsequent extractions at the same site where the hand-dug well was bailed out and sampled four times within two days.We conclude that recharge of shallow ground water occurred in early Holocene time, and some recharge of deeper aquifers may have occurred where infiltration paths permitted. Some recharge occurred in late Holocene (post pluvial) time, but the net trend has been toward hyper-aridity that characterizes the area today.

Optimization of a well system using the Ground Water Management package of MODFLOW-2000

2016 ◽  
Vol 39 ◽  
pp. 101-104 ◽  
Author(s):  
Anna Grava ◽  
Marco Rotiroti ◽  
Letizia Fumagalli ◽  
Tullia Bonomi
Keyword(s):  
Water Management ◽  
Ground Water

PHYSICOCHEMICAL ANALYSIS OF GROUND WATER AND SURFACE WATER IN KOTA REGION, RAJASTHAN, INDIA

2018 ◽  
Vol 24 (1) ◽  
Author(s):  
NITU SINGH ◽  
FATIMA SULTANA
Keyword(s):  
Surface Water ◽  
Ground Water ◽  
Growth And Development ◽  
Physicochemical Parameters ◽  
Total Dissolved Solids ◽  
Physicochemical Analysis ◽  
Total Hardness ◽  
Developing Nation ◽  
The Sustainable Development ◽  
Chloride Sulfate

India is a developing nation and is dependent on its natural resources for growth and development. Water, being one of the vital natural resource, must be used judicially for the sustainable development. Present study focuses on the analysis of physicochemical parameters (pH, Turbidity, Alkalinity, Total Hardness, Total dissolved solids, Conductivity, Chloride, Sulfate, Fluoride contents) of ground water and surface water in Kota City (Rajasthan). The study shows the adverse impact of exploitation and urbanization on water resources of Kota City (Rajasthan). Some physicochemical parameters exceed the desirable limits as defined by WHO and Indian Standards in the selected sites. The level of pollution in ground water and surface water of Kota City is increasing due to urbanization.

Analytical solution for estimating the influence of a pre-existing ground water flow on a geothermal heat production-injection well system

2011 ◽  
Vol 2 (1) ◽  
pp. 13-17
Author(s):  
I. David ◽  
M. Visescu
Keyword(s):  
Ground Water ◽  
Water Flow ◽  
Geothermal Energy ◽  
Flow Direction ◽  
Energy Resource ◽  
Hot Water ◽  
Injection Well ◽  
Production Well ◽  
Ground Water Flow ◽  
The Earth

Abstract Geothermal energy source is the heat from the Earth, which ranges from the shallow ground (the upper 100 m of the Earth) to the hot water and hot rock which is a few thousand meters beneath the Earth's surface. In both cases the so-called open systems for geothermal energy resource exploitation consist of a groundwater production well to supply heat energy and an injection well to return the cooled water, from the heat pump after the thermal energy transfer, in the underground. In the paper an analytical method for a rapid estimation of the ground water flow direction effect on the coupled production well and injection well system will be proposed. The method will be illustrated with solutions and images for representative flow directions respect to the axis of the production/injection well system.

Sign in / Sign up

Export Citation Format

Share Document