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The Water Cycle

The Water Cycle. Ellen Metzger BAESI Water in A Changing Climate July 2009. Water in the Earth System. What are some reservoirs for water in the Earth system? What are some processes that move water through the Earth system? What is the source of energy for the water cycle? .

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The Water Cycle

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  1. The Water Cycle Ellen Metzger BAESI Water in A Changing Climate July 2009

  2. Water in the Earth System • What are some reservoirs for water in the Earth system? • What are some processes that move water through the Earth system? • What is the source of energy for the water cycle?

  3. Earth’s Water http://oceanworld.tamu.edu/resources/environment-book/Images/earthwheredistribution.gif

  4. Freshwater Reservoirs Source: USGS

  5. How do human activities affect the water cycle?

  6. Human Activities and the Water Cycle • Overuse of groundwater: subsidence • Paving • Increased runoff • Decreased infiltration and recharge • Climate change: melting polar ice, sea level rise, different patterns of precipitation • Dams and reservoirs • Channelization of streams, removal of flood plains

  7. Undeveloped area Urban area Urban Water Cycle http://www.nccwep.org/stormwater/stormwater101/runoff.php

  8. Surface Water: Watersheds http://www.ducks.ca/resource/general/wetland/images/watrshed.jpg

  9. Water Cycle Reservoirs:Residence times

  10. Groundwater Source: USGS Terms: Water table Aquifer

  11. http://www.ec.gc.ca/Water/images/nature/grdwtr/a5f3e-rev.gif

  12. Overuse of Ground Water:Cone of Depression http://web.arc.losrios.edu/~borougt/ConeOfDepression.gif

  13. Subsidence in Santa Clara Valley Source: USGS

  14. Source: USGS

  15. Groundwater System – Santa Clara Valley http://www.museumca.org/creeks/images/GrndWtrP.gif

  16. San Joaquin Valley: Subsidence 1925-1977" From USGS Professional Paper 1401-A/ Photo by Dick Ireland, USGS, 1977

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