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An aquifer is an underground layer of water-bearing permeable rock or unconsolidated materials (gravel, sand, silt, or clay) from which groundwater can be usefully extracted using a water well. The study of water flow in aquifers and the characterization of aquifers is called hydrogeology. Related terms include: an aquitard, which is an impermeable layer along an aquifer, and an aquiclude (or aquifuge), which is a solid, impermeable area beneath an aquifer. The surface of saturated material in an aquifer is known as the water table. |
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artesian formation [image] |
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| the formation of artesians. lol |
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evapotranspiration [image] |
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Evapotranspiration (ET) is a term used to describe the sum of evaporation and plant transpiration from the earth's land surface to atmosphere. Evaporation accounts for the movement of water to the air from sources such as the soil, canopy interception, and waterbodies. Transpiration accounts for the movement of water within a plant and the subsequent loss of water as vapor through stomata in its leaves. Evapotranspiration is an important part of the water cycle. An element (such as a tree) that contributes to evapotranspiration can be called an evapotranspirator.[1] |
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| A geyser is a special type of hot spring that erupts periodically |
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The hydrosphere includes all water on Earth |
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| not allowing fluid to pass through |
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| Formations that transmit fluids readily, such as sandstones, are described as permeable and tend to have many large, well-connected pores |
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| describes the fraction of void space in the material |
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| water budget: usage / deficit | | recharge / surplus |
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| . A summation of inputs, outputs, and net changes to a particular water resource system over a fixed period |
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| The water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the surface of the Earth |
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| The water table is the level at which the ground water pressure is equal to atmospheric pressure |
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