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Hydrology

Hydrology . Introduction. Water – A few interesting Quotes. Water is the driver of Nature. - Leonardo da Vinci We forget that the water cycle and the life cycle are one. - Jacques Cousteau When the well's dry, we know the worth of water. - Benjamin Franklin (1706-1790). Water .

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Hydrology

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  1. Hydrology Introduction

  2. Water – A few interesting Quotes • Water is the driver of Nature. - Leonardo da Vinci • We forget that the water cycle and the life cycle are one. - Jacques Cousteau • When the well's dry, we know the worth of water. - Benjamin Franklin (1706-1790)

  3. Water • Water is in the Western World an unappreciated, but essential resource without which we have no hope of doing anything at all • A quick look at history shows that civilizations flourish when water is abundant • In the developing world (and increasingly the developed) it is the number one source of conflict

  4. Water and the UN

  5. How much do we need? • For personal drinking – roughly 2-3 liters of water a day • In developing countries, 20 to 30 litres of water per person per day are considered adequate for basic human needs

  6. How much do we use? http://www.ec.gc.ca/eau-water/default.asp?lang=En&n=F25C70EC-1

  7. http://pubs.usgs.gov/circ/1344/

  8. Biggest Users: Electrical Power – 49% Irrigation 31%

  9. Total Water Withdrawals in USA

  10. And….. • Good News : We are getting more efficient Our 1995 per capita use is 10% better than our 1980 use and it is continuously getting better • Bad News : Population growth makes per capita efficiency even more important

  11. Supply of Water Resources

  12. Groundwater • More than 98% of readily available fresh water is ground water! • However, it is important not to forget that water follows a cycle

  13. Hydrologic Cycle http://www.nbclearn.com/water

  14. Water Budgets • Probably the most important equation in water management, the Hydrologic Equation (or simply Mass Conservation) Inflow = Outflow + Changes in Storage

  15. No easy task • Precipitation • Surface Water Flows • Groundwater Flows • Artificial Import and Export of Water • Storage: streams, lakes, ponds, soil moisture, ice +snow, temporary depression storage, plants, groundwater

  16. Where would you work as a hydro(geo)logist • Government (local authorities, USGS, EPA, research labs) • Consulting • Energy • Mining • NGOs

  17. Question to All of You • What role do Engineers play in Water? • Is water an engineering problem? • Can we solve the problems? • What barriers do you foresee? • How can we help the politicians, stakeholders and sociologists? • Is this a developed world, developing world or whole world problem? • What role do you personally see yourself playing?

  18. Some Interesting Websites • http://www.cusa.uci.edu/http://science.howstuffworks.com/environmental/earth/geophysics/run-out-of-water.htmhttp://www.globalpolicy.org/the-dark-side-of-natural-resources-st/water-in-conflict/52367-water-crisis-hitting-food-energy--and-everything-else.html?itemid=id#40395http://academic.evergreen.edu/g/grossmaz/OFORIAA/http://www.arlingtoninstitute.org/wbp/global-water-crisis/441http://www.worldwater.org/conflict/http://www.worldwater.org/conflict/list/

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