Sentences with phrase «of aquifer systems»

These high - resolution measurements offer great potential for future investigations into the mechanics of aquifer systems and the spatial heterogeneity of aquifer system structure and material properties as well as for monitoring ongoing aquifer system compaction and land subsidence.

Because of the general unavailability of spatially detailed deformation data, areal stress - strain relations and their variability are not commonly considered in constraining conceptual and numerical models of aquifer systems.

The study would provide updated details about the state of the aquifer system in the county, said Frederick Stumm, research hydrologist with the USGS New York Water Science Center in Coram, who cowrote the proposal.

Others, including Southampton Town Supervisor Anna Throne - Holst, spoke of the issue of sand mining on the East End, particularly in areas important for the protection of the aquifer system.

Analyses of areal variations in the subsidence and rebound occurring over stressed aquifer systems, in conjunction with measurements of the hydraulic head fluctuations causing these displacements, can yield valuable information about the compressibility and storage properties of the aquifer system.

Not exact matches

The need for a study arose after the county began examining New York City's plan to reopen 23 of its shuttered Queens wells that dip into the aquifer system under geographic Long Island during its upstate aqueduct - repair project, Martins said.

«I know it's kind of crazy, but with the millions of people that rely on the sole - source aquifer system, there is no federal program to do research or to monitor the groundwater quality or quantity or even where the saltwater is located,» Stumm said.

Allen wrote the computer code necessary to analyze massive amounts of geographic information systems data about the more than 14,000 wells using the aquifer.

Although precipitation and river systems are recharging a few parts of the northern aquifer, in most places nature can not keep up with human demands.

Bill Cunningham, acting chief of the U.S. Geological Survey's Office of Groundwater, said that many of these offshore aquifers are connected to land - based systems.

Beneath the ground, according to the U.S. Geological Survey, the earth is a complex system of folded crusts containing at least 30 water - bearing aquifer layers.

But not all aquifers are exempted, and the system amounts to a patchwork of protected and unprotected water resources deep underground.

Stuart Minchin, an environmental chemist and IT whiz who heads the WRON team, shows me around a climate - controlled room where hard drives the size of meat lockers corral information from the nation's diverse water management agencies and track virtually every drop of water in lakes, reservoirs, aquifers, and river systems.

This study of the aquifers in the Calama Valley is motivated by the challenge of sustainable long - term management of the Loa coupled with the natural - human resource system.

In the April issue of New Zealand Science Monthly, Bardsley says that the geological conditions at the site could allow the creation of an aquifer storage system.

Storm drainage systems typically redirect most floodwater out to sea, but given the region's intense water deficit, hydrology scientists at the University of California, Davis, are experimenting with so - called groundwater banking, which involves sending storm water to flood fallow fields where it can percolate into the soil and replenish aquifers.

These latest findings appear in the study «Controls on tungsten concentrations in groundwater flow systems: The role of adsorption, aquifer sediment Fe (III) oxide / oxyhydroxide content, and thiotungstate formation,» published in the journal Chemical Geology.

To provide information to stakeholders addressing these issues, the USGS Groundwater Resources Program made a detailed assessment of groundwater availability of the Central Valley aquifer system, that includes: (1) the present status of groundwater resources; (2) how these resources have changed over time; and (3) tools to assess system responses to stresses from future human uses and climate variability and change.

When sewage flowed from 20 Class 1 wells near Miami into the Upper Floridan aquifer, it challenged some of scientists» fundamental assumptions about the injection system.

Topping the list of overstressed aquifers is the Arabian Aquifer System, located beneath Yemen and Saudi Arabia, from which 60 million people draw their water.

The drainage basin as an open system with inputs (precipitation of varying type and intensity), outputs (evaporation and transpiration), flows (infiltration, throughflow, overland flow and base flow) and stores (including vegetation, soil, aquifers and the cryosphere)

Persia used a qanat system of irrigation which is essentially a gently sloping system of channels, situated underground, used to divert water from aquifers as needed.

[ANDY REVKIN disagrees: Sorry, policy (a better word would be leadership, perhaps) still drives most game - changing innovation and large - scale investment, particularly in the arena of the «public good» (New York City's reservoir and aquifer system, the climate system, the grid).

With EGS, the water is the «bucket» that carries the heat from depth to the surface, and will typically be a relatively costly portion of the operation, so it will be cycled as a closed system in wells that case - off potable aquifers, shuttling water from the surface to the fractures where it's heated, back up to the surface to extract the heat for running turbines, and then back down to the fractures.

Before the press conference, campers joined a cave tour at Crystal Grottoes to view the region's fragile karst geology, which is characterized by underground drainage systems with sinkholes and caves and is easily susceptible to transmission of pollutants through connected underground aquifers.

We found that the volume of meltwater drained through this particular aquifer - crevasse field system is comparable to what comes out of a western Greenland supraglacial lake or river system.»

In response to long - term declining rainfall, Perth's Water Corporation, Western Australia's main water supplier, has been moving away from its reliance on dams, and is now planning to move away from reliance on the Gnangara mound, a surface groundwater system made up of four main aquifers beneath Perth's coastal plain.

electric power plants are: (1) survey and assess the capacity, cost, and location of potential depleted gas and oil wells that are suitable CO -LCB- sub 2 -RCB- repositories (with the cooperation of the oil and gas industry); (2) conduct research on the feasibility of ocean disposal, with objectives of determining the cost, residence time, and environmental effects for different methods of CO -LCB- sub 2 -RCB- injection; (3) perform an in - depth survey of knowledge concerning the feasibility of using deep, confined aquifers for disposal and, if feasible, identify potential disposal locations (with the cooperation of the oil and gas industry); (4) evaluate, on a common basis, system and design alternatives for integration of CO -LCB- sub 2 -RCB- capture systems with emerging and advanced technologies for power generation; and prepare a conceptual design, an analysis of barrier issues, and a preliminary cost estimate for pipeline networks necessary to transport a significant portion of the CO -LCB- sub 2 -RCB- to potentially feasible disposal locations.

The research needs that have high priority in establishing the technical, environmental, and economic feasibility of large - scale capture and disposal of CO -LCB- sub 2 -RCB- from electric power plants are: (1) survey and assess the capacity, cost, and location of potential depleted gas and oil wells that are suitable CO -LCB- sub 2 -RCB- repositories (with the cooperation of the oil and gas industry); (2) conduct research on the feasibility of ocean disposal, with objectives of determining the cost, residence time, and environmental effects for different methods of CO -LCB- sub 2 -RCB- injection; (3) perform an in - depth survey of knowledge concerning the feasibility of using deep, confined aquifers for disposal and, if feasible, identify potential disposal locations (with the cooperation of the oil and gas industry); (4) evaluate, on a common basis, more» system and design alternatives for integration of CO -LCB- sub 2 -RCB- capture systems with emerging and advanced technologies for power generation; and prepare a conceptual design, an analysis of barrier issues, and a preliminary cost estimate for pipeline networks necessary to transport a significant portion of the CO -LCB- sub 2 -RCB- to potentially feasible disposal locations.

Well diggers in Araihazar, Bangladesh will soon be able to take advantage of a cell phone - based data system, developed at the Lamont - Doherty Earth Observatory with support from the Earth Institute at Columbia University, to target safe groundwater aquifers for installing new wells that are not tainted with arsenic.

Furthermore, over-exploitation is a threat to most local production systems, and aquifer over-exploitation and mismanagement of irrigation systems are causing salinisation of soils and water and sanitation problems.

The risk in this region is exacerbated by the sensitive karst limestone geology underneath the river, characterized by underground drainage systems with sinkholes and caves, and openings that could allow for the migration of pollutants into underground aquifers.

We present InSAR measurements of the typically small - magnitude, generally recoverable deformations of the Las Vegas Valley aquifer system occurring at seasonal timescales.