Aquifer — Typical aquifer cross section An aquifer is a wet underground layer of water bearing permeable rock or unconsolidated materials (gravel, sand, or silt) from which groundwater can be usefully extracted using a water well. The study of water flow… … Wikipedia
Aquifer test — An aquifer test (or a pumping test) is conducted to evaluate an aquifer by stimulating the aquifer through constant pumping, and observing the aquifer s response (drawdown) in observation wells. Aquifer testing is a common tool that… … Wikipedia
Ogallala Aquifer — Saturated thickness of the Ogallala Aquifer in 1997 after several decades of intensive withdrawals: The breadth and depth of the aquifer generally decrease from north to south … Wikipedia
Mahomet Aquifer — The Mahomet Aquifer is the most important aquifer in east central Illinois. The sand and gravel aquifer is part of the buried Mahomet Bedrock Valley. It underlies 15 counties and ranges from 50 to 200 feet (15 to 60 m) thick. It supplies over 100 … Wikipedia
Yarragadee Aquifer — The Yarragadee Aquifer is a significant freshwater aquifer located in the south west of Western Australia and predominately beneath the Swan Coastal Plain west of the Darling Scarp. It has a north south range from about Geraldton to the south… … Wikipedia
Nubian Sandstone Aquifer System — The Nubian Sandstone Aquifer System (NSAS) is the world’s largest known fossil water aquifer system. It is located underground in the Eastern end of the Sahara Desert and spans the political boundaries of four countries in north eastern… … Wikipedia
Guaraní Aquifer — The Guaraní Aquifer, located beneath the surface of the original four Mercosur countries (Argentina, Brazil, Paraguay and Uruguay), is one of the world s largest aquifer systems and an important source of fresh water for its people. [… … Wikipedia
Hydraulic conductivity — Hydraulic conductivity, symbolically represented as K, is a property of vascular plants, soil or rock, that describes the ease with which water can move through pore spaces or fractures. It depends on the intrinsic permeability of the material… … Wikipedia
Dupuit assumption — The Dupuit assumption holds that groundwater moves horizontally in an unconfined aquifer, and that the groundwater discharge is proportional to the saturated aquifer thickness. It was first designed by Jules Dupuit in 1863 to simplify the… … Wikipedia
Mächtigkeit des Grundwasserleiters — vandeningojo horizonto storis statusas T sritis ekologija ir aplinkotyra apibrėžtis Trumpiausias atstumas tarp apatinės vandensparos kraigo ir virš jo slūgsančio nespūdinio vandens paviršiaus arba atstumas tarp dviejų vandensparų spūdinio vandens … Ekologijos terminų aiškinamasis žodynas
