Results 241 to 250 of about 129,037 (288)

Saltwater intrusion in a subtropical estuary

Estuarine, Coastal and Shelf Science, 2019
Abstract River discharge, precipitation, wind, water level and salinity measurements were used to investigate saltwater intrusion in a subtropical estuary. The upstream limit of saltwater intrusion was defined by the position of the 2 g/kg isohaline ( X 2 ) as it changed each tidal cycle.
Gisselle E. Guerra-Chanis, Miguel Á. Reyes-Merlo, Manuel Díez-Minguito, Arnoldo Valle-Levinson   +3 more
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Coastal Aquifers and Saltwater Intrusion

2008
As a large portion of the world's population (e.g. about 70%) dwells in coastal zones, sustainable and optimal coastal aquifer exploitation that controls saltwater intrusion is necessary. Especially in coastal zones, groundwater over- exploitation has disturbed the naturally established equilibrium between saltwater and freshwater which has resulted in
Itzel G. Godinez, Christophe J. G. Darnault   +1 more
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Saltwater Intrusion in the United States

Journal of the Hydraulics Division, 1969
The occurrence of saline water is described in terms of geologic and hydrologic conditions. The three general mechanisms of intrusion are considered.
A. E. Bruington, W. J. Drescher, C. B. Sherwood   +2 more
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Geophysical Methods Applied to Saltwater Intrusion in Antigua

Symposium on the Application of Geophysics to Engineering and Environmental Problems 2004, 2004
The island of Antigua has been suffering from an acute shortage of potable water due largely to drought conditions on the island. Because of the persistent drought conditions one of the island's primary sources of potable water, the Potworks Dam, is dry. In addition to the Potworks Dam, the nearby smaller Collins Dam is also dry.
Stewart K. Sandberg, Hastin Barnes
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Types of saltwater intrusion of the Changjiang Estuary

Science in China Series B: Chemistry, 2001
The Changjiang Estuary is characterized by multi-order bifurcations, unsteady sub-merged sandbars, mid-channel sandbars, creeks and riffles. The following four types of saltwater intrusion are found: (1) direct intrusion from the sea; (2) intrusion during tidal flooding; (3) intrusion from tidal flats overflow; and (4) salt water coming upstream ...
Zhichang Mao, Huanting Shen, T. James Liu, D. Eisma   +3 more
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Saltwater Intrusion Hydrodynamics in a Tidal Aquifer

Journal of Hydrologic Engineering, 2008
The saltwater freshwater interface at the intertidal zones of surficial aquifers is continuously influenced by tidal effects. The numerical solution of this continuously changing intertidal saltwater interface profile is difficult. To simulate this dynamic system correctly appropriate definition and use of seaside boundary conditions are necessary. The
Chan-Hee Park, Mustafa M. Aral
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Saltwater Intrusion (Henry’s Example)

1998
The intrusion of saltwater from a saltwater reservoir into a connected freshwater aquifer is a well-known problem not only on the seashore. Fig 11.1 shows the situation on the German North-Sea coast. It is a severe problem where coastal regions are highly populated, especially in the vicinity of big cities.
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A note on saltwater intrusion in coastal aquifers

Water Resources Management, 1990
Transport of contaminants in aquifers has received considerable attention over the past few years. In coastal aquifers, a dispersion zone between saline water and fresh water exists where the flow of water and transport of salt ions are coupled. The flow pattern of two miscible fluids of different unit weights is characterized by the cyclic flow at the
M. Sherif Mohsen, Vijay P. Singh, Abdelwahab M. Amer   +2 more
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Dispersion Process and Saltwater Intrusion in Groundwater

2000
Dispersion phenomena of solutes and pollutants (contaminants/tracers) in subsurface water and porous media have caught the interest of researchers since the 1960s. The mathematical formulation of problems in terms of hydraulics has been realized by applying mass conservation (including source or sink terms for dispersed matter), Fick’s law and ...
Kuniaki Sato, Yoshiaki Iwasa
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Groundwater quality - saltwater intrusions

2006
Saline groundwater can lead to serious problems for water supply, especially under arid climatic conditions. To define saline groundwater, Grube et al. (2000) proposed a concentration of chloride exceeding 250 mg/l. Since the electrical conductivity of water is strongly related to the salt concentration, the EU-directive on water quality (1998) sets an
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