115 relations: Adhesion, Africa, Alberta, Alluvium, Anisotropy, Anti-Lebanon Mountains, Aquifer properties, Aquifer storage and recovery, Aquifer test, Argentina, Arsenic contamination of groundwater, Artesian aquifer, Asphalt, Athabasca oil sands, Atlas Mountains, Atmospheric pressure, Australia, Basalt, Beach, Bedrock, Biscayne Aquifer, Brazil, Capillary action, Capillary fringe, Cave, Chalk Group, Cistern, Clay, Cretaceous, Deccan Traps, Devonian, Diameter, Drainage equation, Drainage system (agriculture), Earth, Edmonton, Edwards Aquifer, Environmental impact of irrigation, Erosion, Foreign Policy, Fossil water, Fracture (geology), Fresh water, Geological formation, Gravel, Great Artesian Basin, Great Man-Made River, Groundwater, Groundwater model, Groundwater pollution, ..., Groundwater recharge, Guaraní people, Guarani Aquifer, Humidity, Hydraulic conductivity, Hydraulic head, Hydraulic tomography, Hydrogeology, Ice age, Irrigation, Isotropy, Jebel Akhdar (Oman), Karst, Lake, Lebanon, Libya, Limestone, McMurray Formation, Meteoric water, Meteoroid, Mount Lebanon, Muammar Gaddafi, North Africa, Ogallala Aquifer, Oman, Open-pit mining, Overdrafting, Overexploitation, Paraguay, Permeability (earth sciences), Phreatic, Porosity, Pump, Quaternary glaciation, Rock (geology), SahysMod, Saltwater intrusion, Sand, Sea level, Seasonal thermal energy storage, Sierra Nevada (U.S.), Silt, Soil salinity, Soil salinity control, Southwestern United States, Specific storage, Spring (hydrology), Steam-assisted gravity drainage, Stream, Subsidence, Suction, Surficial aquifer, Synthetic crude, Syria, Texas, Tile drainage, United States Geological Survey, Uruguay, Vadose zone, Virginia, Water, Water content, Water table, Water well, Well drainage. Expand index (65 more) » « Shrink index
Adhesion is the tendency of dissimilar particles or surfaces to cling to one another (cohesion refers to the tendency of similar or identical particles/surfaces to cling to one another).
Africa is the world's second largest and second most-populous continent (behind Asia in both categories).
Alberta is a western province of Canada.
Alluvium (from the Latin alluvius, from alluere, "to wash against") is loose, unconsolidated (not cemented together into a solid rock) soil or sediments, which has been eroded, reshaped by water in some form, and redeposited in a non-marine setting.
Anisotropy, is the property of being directionally dependent, which implies different properties in different directions, as opposed to isotropy.
The Anti-Lebanon Mountains (Jibāl Lubnān ash-Sharqiyyah, "Eastern Mountains of Lebanon"; Lebanese Arabic:, Jbel esh-Shar'iyyeh, "Eastern Mountains") are a southwest-northeast-trending mountain range that forms most of the border between Syria and Lebanon.
The aquifer properties of the aquifer essentially depend upon the composition of the aquifer.
Aquifer storage and recovery (ASR) is the direct injection of surface water supplies such as potable water, reclaimed water, or river water into an aquifer for later recovery and use.
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.
Argentina, officially the Argentine Republic (República Argentina), is a federal republic located mostly in the southern half of South America.
Arsenic contamination of groundwater is a form of groundwater pollution which is often due to naturally occurring high concentrations of arsenic in deeper levels of groundwater.
An artesian aquifer is a confined aquifer containing groundwater under positive pressure.
Asphalt, also known as bitumen, is a sticky, black, and highly viscous liquid or semi-solid form of petroleum.
The Athabasca oil sands (or tar sands) are large deposits of bitumen or extremely heavy crude oil, located in northeastern Alberta, Canada – roughly centred on the boomtown of Fort McMurray.
The Atlas Mountains (jibāl al-ʾaṭlas; ⵉⴷⵓⵔⴰⵔ ⵏ ⵡⴰⵟⵍⴰⵙ, idurar n waṭlas) are a mountain range in the Maghreb.
Atmospheric pressure, sometimes also called barometric pressure, is the pressure within the atmosphere of Earth (or that of another planet).
Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands.
Basalt is a common extrusive igneous (volcanic) rock formed from the rapid cooling of basaltic lava exposed at or very near the surface of a planet or moon.
A beach is a landform alongside a body of water which consists of loose particles.
In geology, bedrock is the lithified rock that lies under a loose softer material called regolith at the surface of the Earth or other terrestrial planets.
The Biscayne Aquifer, named after Biscayne Bay, is a surficial aquifer.
Brazil (Brasil), officially the Federative Republic of Brazil (República Federativa do Brasil), is the largest country in both South America and Latin America.
Capillary action (sometimes capillarity, capillary motion, capillary effect, or wicking) is the ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity.
The capillary fringe is the subsurface layer in which groundwater seeps up from a water table by capillary action to fill pores.
A cave is a hollow place in the ground, specifically a natural space large enough for a human to enter.
The Chalk Group (often just called the Chalk) is the lithostratigraphic unit (a certain number of rock strata) which contains the late Cretaceous limestone succession in southern and eastern England.
A cistern (Middle English cisterne, from Latin cisterna, from cista, "box", from Greek κίστη, "basket") is a waterproof receptacle for holding liquids, usually water.
Clay is a finely-grained natural rock or soil material that combines one or more clay minerals with possible traces of quartz (SiO2), metal oxides (Al2O3, MgO etc.) and organic matter.
The Cretaceous is a geologic period and system that spans 79 million years from the end of the Jurassic Period million years ago (mya) to the beginning of the Paleogene Period mya.
Deccan Traps are a large igneous province located on the Deccan Plateau of west-central India (17°–24°N, 73°–74°E) and are one of the largest volcanic features on Earth.
The Devonian is a geologic period and system of the Paleozoic, spanning 60 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya.
In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle.
A drainage equation is an equation describing the relation between depth and spacing of parallel subsurface drains, depth of the watertable, depth and hydraulic conductivity of the soils.
An agricultural drainage system is a system by which water is drained on or in the soil to enhance agricultural production of crops.
Earth is the third planet from the Sun and the only astronomical object known to harbor life.
Edmonton (Cree: Amiskwaciy Waskahikan; Blackfoot: Omahkoyis) is the capital city of the Canadian province of Alberta.
The Edwards Aquifer is one of the most prolific artesian aquifers in the world.
The environmental impacts of irrigation relate to the changes in quantity and quality of soil and water as a result of irrigation and the effects on natural and social conditions in river basins and downstream of an irrigation scheme.
In earth science, erosion is the action of surface processes (such as water flow or wind) that remove soil, rock, or dissolved material from one location on the Earth's crust, and then transport it to another location (not to be confused with weathering which involves no movement).
Foreign Policy is an American news publication, founded in 1970 and focused on global affairs, current events, and domestic and international policy.
Fossil water or paleowater is an ancient body of water that has been contained in some undisturbed space, typically groundwater in an aquifer, for millennia.
A fracture is any separation in a geologic formation, such as a joint or a fault that divides the rock into two or more pieces.
Fresh water (or freshwater) is any naturally occurring water except seawater and brackish water.
A formation or geological formation is the fundamental unit of lithostratigraphy.
Gravel is a loose aggregation of rock fragments.
The Great Artesian Basin (GAB), located in Australia, is the largest and deepest artesian basin in the world, stretching over, with measured temperatures ranging from.
The Great Man-Made River (GMR, النهر الصناعي العظيم) is a network of pipes that supplies water to the Sahara in Libya, from the Nubian Sandstone Aquifer System fossil aquifer.
Groundwater is the water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations.
Groundwater models are computer models of groundwater flow systems, and are used by hydrogeologists.
Groundwater pollution (also called groundwater contamination) occurs when pollutants are released to the ground and make their way down into groundwater.
Groundwater recharge or deep drainage or deep percolation is a hydrologic process where water moves downward from surface water to groundwater.
Guaraní are a group of culturally related indigenous peoples of South America.
The Guarani Aquifer, located beneath the surface of Argentina, Brazil, Paraguay, and Uruguay, is the second largest known aquifer system in the world and is an important source of fresh water.
Humidity is the amount of water vapor present in the air.
Hydraulic conductivity, symbolically represented as K, is a property of vascular plants, soils and rocks, that describes the ease with which a fluid (usually water) can move through pore spaces or fractures.
Hydraulic head or piezometric head is a specific measurement of liquid pressure above a geodetic datum.
Hydraulic tomography (HT) is a sequential cross-hole hydraulic test followed by inversion of all the data to map the spatial distribution of aquifer hydraulic properties.
Hydrogeology (hydro- meaning water, and -geology meaning the study of the Earth) is the area of geology that deals with the distribution and movement of groundwater in the soil and rocks of the Earth's crust (commonly in aquifers).
An ice age is a period of long-term reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers.
Irrigation is the application of controlled amounts of water to plants at needed intervals.
Isotropy is uniformity in all orientations; it is derived from the Greek isos (ἴσος, "equal") and tropos (τρόπος, "way").
The Jebel Akhar, Jabal Akhdar or Al Jabal Al Akhdar (الجبل الأخضر meaning "the Green Mountain"), is part of the Al Hajar Mountains range in Ad Dakhiliyah Governorate of Oman.
Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum.
A lake is an area filled with water, localized in a basin, that is surrounded by land, apart from any river or other outlet that serves to feed or drain the lake.
Lebanon (لبنان; Lebanese pronunciation:; Liban), officially known as the Lebanese RepublicRepublic of Lebanon is the most common phrase used by Lebanese government agencies.
Libya (ليبيا), officially the State of Libya (دولة ليبيا), is a sovereign state in the Maghreb region of North Africa, bordered by the Mediterranean Sea to the north, Egypt to the east, Sudan to the southeast, Chad and Niger to the south and Algeria and Tunisia to the west.
Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms such as coral, forams and molluscs.
The McMurray Formation is a stratigraphic unit of Early Cretaceous age (late Barremian to Aptian stage) of the Western Canada Sedimentary Basin in northeastern Alberta.
Meteoric water is the water derived from precipitation (snow and rain).
A meteoroid is a small rocky or metallic body in outer space.
Mount Lebanon (جَبَل لُبْنَان, jabal lubnān, Lebanese Arabic pronunciation; ܛܘܪ ܠܒܢܢ) is a mountain range in Lebanon.
Muammar Mohammed Abu Minyar Gaddafi (20 October 2011), commonly known as Colonel Gaddafi, was a Libyan revolutionary, politician and political theorist.
North Africa is a collective term for a group of Mediterranean countries and territories situated in the northern-most region of the African continent.
The Ogallala Aquifer is a shallow water table aquifer surrounded by sand, silt, clay and gravel located beneath the Great Plains in the United States.
Oman (عمان), officially the Sultanate of Oman (سلطنة عُمان), is an Arab country on the southeastern coast of the Arabian Peninsula in Western Asia.
Open-pit, open-cast or open cut mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow.
Overdrafting is the process of extracting groundwater beyond the equilibrium yield of the aquifer.
Overexploitation, also called overharvesting, refers to harvesting a renewable resource to the point of diminishing returns.
Paraguay (Paraguái), officially the Republic of Paraguay (República del Paraguay; Tetã Paraguái), is a landlocked country in central South America, bordered by Argentina to the south and southwest, Brazil to the east and northeast, and Bolivia to the northwest.
Permeability in fluid mechanics and the earth sciences (commonly symbolized as κ, or k) is a measure of the ability of a porous material (often, a rock or an unconsolidated material) to allow fluids to pass through it.
Phreatic is a term used in hydrology to refer to aquifers, in speleology to refer to cave passages, and in volcanology to refer to eruption type.
Porosity or void fraction is a measure of the void (i.e. "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0% and 100%.
A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action.
The Quaternary glaciation, also known as the Quaternary Ice Age or Pleistocene glaciation, is a series of glacial events separated by interglacial events during the Quaternary period from 2.58 Ma (million years ago) to present.
Rock or stone is a natural substance, a solid aggregate of one or more minerals or mineraloids.
SahysMod is a computer program for the prediction of the salinity of soil moisture, groundwater and drainage water, the depth of the watertable, and the drain discharge in irrigated agricultural lands, using different hydrogeologic and aquifer conditions, varying water management options, including the use of ground water for irrigation, and several crop rotation schedules, whereby the spatial variations are accounted for through a network of polygons.
Saltwater intrusion is the movement of saline water into freshwater aquifers, which can lead to contamination of drinking water sources and other consequences.
Sand is a naturally occurring granular material composed of finely divided rock and mineral particles.
Mean sea level (MSL) (often shortened to sea level) is an average level of the surface of one or more of Earth's oceans from which heights such as elevations may be measured.
Seasonal thermal energy storage (or STES) is the storage of heat or cold for periods of up to several months.
The Sierra Nevada (snowy saw range) is a mountain range in the Western United States, between the Central Valley of California and the Great Basin.
Silt is granular material of a size between sand and clay, whose mineral origin is quartz and feldspar.
Soil salinity is the salt content in the soil; the process of increasing the salt content is known as salinization.
Soil salinity control relates to controlling the problem of soil salinity and reclaiming salinized agricultural land.
The Southwestern United States (Suroeste de Estados Unidos; also known as the American Southwest) is the informal name for a region of the western United States.
In the field of hydrogeology, storage properties are physical properties that characterize the capacity of an aquifer to release groundwater.
A spring is any natural situation where water flows from an aquifer to the Earth's surface.
Steam-assisted gravity drainage (SAGD; "Sag-D") is an enhanced oil recovery technology for producing heavy crude oil and bitumen.
A stream is a body of water with surface water flowing within the bed and banks of a channel.
Subsidence is the motion of a surface (usually, the earth's surface) as it shifts downward relative to a datum such as sea level.
Suction is the flow of a fluid into a partial vacuum, or region of low pressure.
Surficial aquifers are shallow aquifers typically less than thick, but larger surficial aquifers of about have been mapped.
Synthetic crude is the output from a bitumen/extra heavy oil upgrader facility used in connection with oil sand production.
Syria (سوريا), officially known as the Syrian Arab Republic (الجمهورية العربية السورية), is a country in Western Asia, bordering Lebanon and the Mediterranean Sea to the west, Turkey to the north, Iraq to the east, Jordan to the south, and Israel to the southwest.
Texas (Texas or Tejas) is the second largest state in the United States by both area and population.
In agriculture, tile drainage is a type of drainage system that removes excess water from soil below the surface.
The United States Geological Survey (USGS, formerly simply Geological Survey) is a scientific agency of the United States government.
Uruguay, officially the Oriental Republic of Uruguay (República Oriental del Uruguay), is a sovereign state in the southeastern region of South America.
The vadose zone, also termed the unsaturated zone, is the part of Earth between the land surface and the top of the phreatic zone, the position at which the groundwater (the water in the soil's pores) is at atmospheric pressure ("vadose" is from the Latin for "shallow").
Virginia (officially the Commonwealth of Virginia) is a state in the Southeastern and Mid-Atlantic regions of the United States located between the Atlantic Coast and the Appalachian Mountains.
Water is a transparent, tasteless, odorless, and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms.
Water content or moisture content is the quantity of water contained in a material, such as soil (called soil moisture), rock, ceramics, crops, or wood.
The water table is the upper surface of the zone of saturation.
A water well is an excavation or structure created in the ground by digging, driving, boring, or drilling to access groundwater in underground aquifers.
Well drainage means drainage of agricultural lands by wells.
Acquifer, Aquafer, Aquafier, Aquatard, Aquefur, Aquiclude, Aquiferous well, Aquiferous wells, Aquifers, Aquifier, Aquitard, Confined Aquifer, Confined aquifer, Groundwater aquifer, Sand aquifer, Unconfined aquifer, Unconfined groundwater, Underground aquifer.