- published: 02 Apr 2014
- views: 111757
Groundwater (or ground water) is the water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock become completely saturated with water is called the water table. Groundwater is recharged from, and eventually flows to, the surface naturally; natural discharge often occurs at springs and seeps, and can form oases or wetlands. Groundwater is also often withdrawn for agricultural, municipal, and industrial use by constructing and operating extraction wells. The study of the distribution and movement of groundwater is hydrogeology, also called groundwater hydrology.
Typically, groundwater is thought of as water flowing through shallow aquifers, but, in the technical sense, it can also contain soil moisture, permafrost (frozen soil), immobile water in very low permeability bedrock, and deep geothermal or oil formation water. Groundwater is hypothesized to provide lubrication that can possibly influence the movement of faults. It is likely that much of Earth's subsurface contains some water, which may be mixed with other fluids in some instances. Groundwater may not be confined only to Earth. The formation of some of the landforms observed on Mars may have been influenced by groundwater. There is also evidence that liquid water may also exist in the subsurface of Jupiter's moon Europa.
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This lighthearted animation tells the story of groundwater: where it is, where it comes from, and where it goes. Learn more about this video: http://ow.ly/vcFiU
What Is Groundwater? How does it affect our daily lives, and why is it so important? Where does it fit in within the Water Cycle? All this and more as this educational video explains many facets and concepts behind one of Western Australia's major water sources. 1:07 - Fresh Water Breakdown 1:35 - Where Does Groundwater Come From? 2:16 - Most Groundwater Comes from Rainfall 2:59 - Porosity Example 3:31 - Permeability 4:39 - Raindrop animation 4:54 - Aquifers 6:14 - call to action to Preserve water 6:30 - Confined Aquifer 8:03 - The Water table 8:46 - Summary For a better quality render check here: https://youtu.be/-4F4h6KLiK4 Subscribe: http://goo.gl/1TKSCX Facebook: http://www.watercorporation.com.au/ Twitter: https://twitter.com/watercorpwa Website: https://www.watercorporation.com...
A basic introduction to the groundwater of Adelaide -- with Russell Martin. Looks at the different aquifers under the Adelaide Plains, their geological history, and how groundwater is used in Adelaide.
Groundhogs sing us a song about Groundwater. Concepts cover the historical path of water, uses of water and dangers groundwater faces. Better quality version here 2013 https://www.youtube.com/watch?v=0duNtVQojTM 2006 Full Quality Flash https://www.youtube.com/watch?v=0duNtVQojTM
Dr. Manishika Jain explains concept of groundwater, the three types of water viz., Meteoric Water Connate Water Magmatic/Juvenile Water Zones of Groundwater, Zone of aeration or vadose zone Zone of Saturation Zone of Intermittent Saturation Concept of Aquifer, Aquiclude & Aquitard Along with factors affecting groundwater Porosity Permeability Darcy's Law - Velocity & Discharge Join our fully evaluated UPSC Geography optional test series at - https://www.doorsteptutor.com/Exams/IAS/Mains/Optional/Geography/Test-Series/, Post evaluation get personalized feedback & improvement call for each test. IAS Mains Geography optional postal course visit - http://www.examrace.com/IAS/IAS-FlexiPrep-Program/Postal-Courses/Examrace-IAS-Geography-Series.htm For Maps and locations books click here -...
I was commissioned to build this model in support of a presentation about geotechnical engineering. The goal is to illustrate the flow paths that groundwater takes under an obstruction (e.g. a sheet pile or cutoff wall). So much of engineering is just theoretical work, so it was really cool to see such an elegant example of a geotechnical engineering concept borne out in real dirt and water. Thanks for watching and let me know what you think.
How does groundwater flow from one place to another? And how do we tell?
Groundwater is an important source of fresh water for industries, municipalities, farms, and rural homeowners in British Columbia. BC operates a network of over 180 observation wells to track groundwater levels in areas of high use. This information helps us to see how healthy aquifers are so we can make good decisions about groundwater use in BC. See trends in BC groundwater levels: http://www.env.gov.bc.ca/soe/indicators/water/wells/index.html Download BC groundwater data: http://www.env.gov.bc.ca/wsd/data_searches/obswell/index.html Learn more about freshwater in BC: http://www.gov.bc.ca/water
WHILE BUYING LAND OR AFTER BUYING WATER CHECK FOR BOREWELLS.
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