aquifer

Just as serious is the depletion of the aquifers on which farmers depend.

It was the result of villagers pumping up groundwater from ever deeper aquifers.

An early hypothesis by Chakraborti holds that the arsenic is associated with iron pyrites and enters the aquifers by an oxidation process.

The lower one, underlying the marine clay, contains several artesian aquifers used for drinking and economic purposes.

Though forbiddingly dry, the Simpson Desert has aquifers and floodplains that make parts of it ideal livestock-grazing country.

In the name of progress, forests have been denuded, lakes poisoned with pesticides, underground aquifers pumped dry.

Bad drilling lets natural gas seep up to drinking water aquifers and wells, causing some taps to literally burn .

Long-term exploitation of thermal groundwater in deep-seated aquifers has led to a continual falling in water levels at geothermal wells.

UNESCO, a United Nations body, estimates that 273 aquifers are shared by two or more countries.

Later studies found resistant bacteria in many other isolated indigenous human populations, as well as in natural reservoirs like aquifers.

Furthermore, the tidal effects on the freeboard of the groundwater table along the shore also relate to the thickness of the aquifers.

Detractors also worry that freshwater aquifers in the area could be compromised by the Dead Sea's water in the event of an earthquake.

Defining sustainability vexes hydrologists too, particularly with ancient fossil aquifers that will inevitably run dry eventually.

The upper complex overlying the Jurassic clay also contains several aquifers, which are, however, usually significantly contaminated.

Irrigation systems around the world are draining the world's underwater aquifers, new research finds.

Some aquifers can be replenished, though, by trapping monsoon rainwater and directing it underground.

Disposal wells typically are subject to regulatory requirements to avoid the contamination of freshwater aquifers.

How will these countries make up for the inevitable shortfalls when the aquifers are depleted?

His grandest project, the Great Man-Made River, brought water from southern aquifers to the northern cities.

drug flow Pharmaceuticals and their metabolites enter municipal sewage systems and aquifers from homes, health care facilities, and farms.

After each application, these products soak into the soil, sometimes permanently polluting aquifers.

Thus, water demands for the cornfields has soared, putting pressure on aquifers, and competing with drinking water supplies.

Water that infiltrates the soil and is located in underground reservoirs called aquifers.

Some might still be locked in aquifers and other form. ations beneath the surface.

Oilfields, natural-gas fields, aquifers filled with seawater and depleted coal seams are all possibilities.

The largest freeboard of the groundwater table in unconfined aquifers induced by tides may reach about 10% of the thickness of the aquifers.

Both industries and growing populations draw heavily on rivers and aquifers, water resources which are already limited.

Radon, derived from naturally occurring uranium in aquifers, also occurs frequently at high levels in groundwater.

The two deals follow a UN resolution in 2008 on creating a legal regime for aquifers (it may become a full convention next year).

Critics continue to worry that fracking fluid can get into aquifers via accidents, or that fracking simply uses too much water.

In Bangkok, Buenos Aires and Jakarta, the aquifers are similarly overdrawn, polluted or contaminated by salt.

Heat transfer will be through groundwater wells to recharge groundwater recharge aquifers to the original.

Physical properties of ground water distribution in aquifers and vadose zones were emphasized.

As aquifers are drained, more suburbs beyond the basin will ask for it.

another is that the land subsidence mainly results from the compaction of aquifers and the consolidation of clay layers above and below.

Paddy fields and aquifers are still contaminated with salt water. Fishing boats, and the fish themselves, were washed away.

Subsurface Flow is the flow of water underground, in the vadose zone and aquifers.

Many parts of the world have aquifers, some quite massive.

Aquifers below the ice would provide a habitat for creatures or a venue for the hydrogeochemical production of methane.

Both the shallow and deep aquifers are highly over-exploited in a large area of Hai river basin.

Aquifers, like fish stocks, are most at risk when they cross national borders, making property rights weaker.

The stochastic hydrogeology method is a new method for solving the flow and transportproblems in the heterogeneous aquifers.

Such scientific work is crucial because aquifers are still poorly understood.

It refers to line-source when describing the water exchange between aquifers and streams.

And there are 14 million wells just in the United States, tapping aquifers that routinely cross state and even national boundaries.

The pipeline route crosses rich farmland and important aquifers.

Most of this available water is underground, in aquifers or similar formations.

Vast reservoirs will catch the monsoon rains to replenish the aquifers.

Having drained underground aquifers to grow inappropriate crops for many years, they have turned en masse to desalination.

Because of lower water-tables and depleted aquifers, many rivers can no longer replenish themselves in the dry season.

In Bangladesh, where some 70 million people are exposed, the use of deep aquifers is a more recent phenomenon.

Much of Yemen's water is mined from rapidly depleting underground aquifers.

Most of the poisoned aquifers are shallow, however, from 10 to 70 meters deep, and lie to the south and southeast of the country.

Farmers are draining the aquifers .

But even big aquifers are not immune to the laws of physics.

Is bottled water hurting aquifers?

Experts are still refining the count: the American-Mexico border may include 8, 10, 18 or 20 aquifers, depending on how you measure them.

Tens of millions of smallholders have invested in their own pumps so that they can extract water from shallow aquifers whenever they choose.

In the past, water has become trapped also, when lava flows hardened, and thus there are aquifers involved.

If the water being pumped is not returning to the aquifers, where is it going?

Today, half the world's people live in countries where water tables are falling as overpumping depletes aquifers.

A problem which is often attacked by resistivity measurements is to locate the depth at which saltwater invades fresh water in aquifers .

Many aquifers are also polluted, especially beneath major cities of developing countries, but the degree is unknown.

They've pumped some aquifers dry in the north China plain, for example.

For example, nearly 2 million people in San Antonio, Texas, drink water from karst aquifers, as do many millions of Chinese.

Cities there function like space stations, importing every ounce of fresh water from distant rivers or fossil aquifers.

Study on the surface subsidence owing to drainage in porous aquifers

A study of the relationship between exploitation of geothermal water in deep-seated aquifers and land subsidence

Study on hydrogeological feature of the main pouring water aquifers within the mining area in northern Anhui

Three Dimensional Numerical Simulation of Groundwater Resources in Deep Aquifers of the Changjiang Delta (South of the Changjiang River)

Method for determination of hydro-geological parameter of aquifers with low permeability and its application

Multi-sources information fusion method and its applications in prediction of water inrush of ordovician limestone aquifers in colliery

Tectonic leakage of fault bounded aquifers subject to non-isothermal recharge: a mechanism generating thermal precursors to seismic events

Period and lag of the time series of tide and groundwater levels affected by the tide in coastal aquifers

Capturing and then burying carbon dioxide deep underground in a bid to reduce emissions may lead to a contamination of water aquifers

Simulation of Changes in Geo-Temperature Field Due to Energy Abstraction from Underground Aquifers

Analyzes on the characteristics of water flow of deep well pumping in phreatic water aquifers in losses area

TV Applied Flow and Solute Transport Modeling in Aquifers: Fundamental Principles and Analytical and Numerical Methods

Coupling model of three dimensional seepage and land-subsidence for dewatering of deep foundation pit in loose confined aquifers

Standard Test Method [Analytical Procedure] for Tests of Anisotropic Unconfined Aquifers by Neuman Method

Study on Combination of Underground Different Thermal Storable Aquifers and Cascaded Water Source Heat Pump System

Analysis on applied effectiveness of near-surface aquifers exploration with NMR technique in North Western arid area

Application of GMS Software to the Evaluation of Groundwater in Deep Aquifers of Yangtze Delta (South of Yangtze River)

Survey on fresh-saline groundwater interface in coastal aquifers with electrical techniques

Standard Test Method for Determining Transmissivity of Nonleaky Confined Aquifers by the Theis Recovery Method

Study of Groundwater Supply of the Confined Aquifers in the Ejin Basin Based on Isotopic Methods

Fitting and Prediction of the Changes in Tide and Groundwater Levels in Coastal Aquifers

Test Method for Determining Transmissivity and Storage Coefficient of Bounded, Nonleaky, Confined Aquifers

Application of cluster analysis on deciding hydraulic relations among aquifers of mines

The rest is locked in snow caps, glaciers, and underground aquifers. (PHOTO: NASA)

Hydrochemical Methods for Study Water Flow in Heterogenous Featured Aquifers

Aquifers and environmental geological problems in the coastal areas in Jiangsu Province

Dividing Saltwater and Freshwater Aquifers by Electrical Logging

Vulnerability of Karst Aquifers in Houzhai River Basin and Its Relations with Landuse Change

Standard Guide for Design of Ground-Water Monitoring Systems in Karst and Fractured-Rock Aquifers

Groundwater Overexplotiation Pushes Arsenic into Deeper Aquifers

Standard Guide for Establishing the Nomenclature of Ground-Water Aquifers

Composition of groundwater resources in deep-seated aquifers under the condition of land subsidence in Tianjin Plain

Characteristics of Karst Aquifers and Groundwater Exploration in Peak Forest-Plain Area: An Example in Laibin County, Guangxi

Discussion on Enlarging Well Yield of Radial Well with Big Diameter in Shallow and Thin Aquifers

Seminar on Protection of Soil and Aquifers against Non-Point Source Pollution;

A New Model of Material Balance for the Fractured Gas Reservoirs with Aquifers

Depletion of aquifers is a looming tragedy. New agreements offer hope

Standard Guide for Development of Ground-Water Monitoring Wells in Granular Aquifers

Water Hardness and Sodium Trends in Texas Aquifers

Groundwater level changes of coastal aquifers caused by tides