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Genius of the Modern World: NietzscheFriday, 24th June 2016 01:05 - BBC Radio 4 BBC4 SignedBettany Hughes takes us on an exploration of Friedrich Nietzsche's life and works. Read more: Genius of the Modern World: Nietzsche
The Big C & Me: Episode 2Friday, 24th June 2016 01:05 - BBC Two
Genius of the Modern World: NietzscheFriday, 24th June 2016 02:40 - BBC Four
Thinking Allowed 2016: A special programme on Pierre BourdieuMonday, 27th June 2016 00:15 - BBC Radio 4
Genius of the Modern World: NietzscheAvailable until Friday, 29th July 2016 00:00Bettany Hughes takes us on an exploration of Friedrich Nietzsche's life and works. Read more: Genius of the Modern World: Nietzsche
The Big C & Me: Episode 2Available until Sunday, 24th July 2016 02:05
The Big C & Me: Episode 3Available until Friday, 22nd July 2016 23:55
Thinking Allowed 2016: A special programme on Pierre BourdieuAvailable for over a year
The UK votes out; the EU shrinks; the world reactsReaction from academics around the planet as UK voters elect to leave the E Read more: The UK votes out; the EU shrinks; the world reacts
City in The SkyThis three-part OU/BBC co-production on BBC Two investigates the 'City in the Sky'. You... Read more: City in The Sky
Grammar mattersGrammar matters because, combined with vocabulary choice, it is our main way of making meaning.... Try: Grammar matters now
English: skills for learningEnglish: skills for learning, is a free course for anybody who is thinking of studying for a... Try: English: skills for learning now
Water is arguably the most important physical resource as it is the one that is essential to human survival. Understanding the global water cycle and how we use water is essential to planning a sustainable source of water for the future. In the UK there are areas where water supplies are limited, as shown by recent droughts. Globally, there are many reas that do not have enough water to support the current population adequately. Decisions will have to be made on the best way to use water in a world where there is climate change. Groundwater is a free course that helps you examines the options.
After studying this course, you should be able to:
- use information from wells, the topography of the ground and a water table contour map, to carry out the following: interpret cross-sections, calculate the thickness of the unsaturated zone, and the rate of groundwater flow; deduce the direction in which groundwater is flowing; and estimate the depth to the saline interface in a coastal area from the height of the water table
- list the types of rock that usually make good aquifers, and assess how good an aquifer a rock could be, given its porosity and hydraulic conductivity
- distinguish between unconfined and confined aquifers, and recognize conditions in confined aquifers that will produce a flowing artesian well
- use suitable data to calculate the exploitable storage, specific yield and specific retention of an aquifer.
Study this free course
Enrol to access the full course, get recognition for the skills you learn, track your progress and on completion gain a statement of participation to demonstrate your learning to others. Make your learning visible!
Many people have the impression that underground water occupies vast caverns, such as those in the Derbyshire Peak District, flowing from one cavern to another along underground rivers. This is a common misconception: underground caverns are fairly rare, but huge quantities of water exist underground, within rocks. This is because many rocks contain pores, spaces that come in all shapes and sizes. In sediments, and consequently sedimentary rocks, there are often pores between grains which can be filled with water. There may also be spaces between rock beds or along joints, fractures or fissures which can also contain water. However, before we look at pores in more detail we will examine how water gets into the rock.
This OpenLearn course provides a sample of level 2 study in
This free course includes adapted extracts from an Open University course which is no longer available to new students. If you found this interesting you could explore more free Environmental Science courses or view the range of currently available OU Environmental Science courses.
Copyright & revisions
Originally published: Tuesday, 22nd March 2016
Last updated on: Tuesday, 22nd March 2016
- Creative-Commons: The Open University is proud to release this free course under a Creative Commons licence. However, any third-party materials featured within it are used with permission and are not ours to give away. These materials are not subject to the Creative Commons licence. See terms and conditions. Full details can be found in the Acknowledgements and our FAQs section.
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