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4-2. flood

4-2. flood. 4-2-1. Generals Overflow of water that submerges land which is usually dry Occurs whenever/wherever the water is supplied more than the drainage capacity (how about sea flooding?) Upstream vs. downstream flooding. 4-2-2 . Stream (River)

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4-2. flood

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  1. 4-2. flood • 4-2-1. Generals • Overflow of water that submerges land which is usually dry • Occurs whenever/wherever the water is supplied more than the drainage capacity (how about sea flooding?) • Upstream vs. downstream flooding

  2. 4-2-2. Stream (River) • The main drainage of the watershed – so critical for the flooding • Probably the most significant medium for erosion, transportation & sedimentation on land • We are still heavily dependent on streams

  3. http://thebritishgeographer.weebly.com/river-landforms.html

  4. http://thebritishgeographer.weebly.com/river-landforms.html

  5. Meandering Mississippi River. http://www.nasa.gov/mission_pages/landsat/news/40th-earthasart.html

  6. 4-2-3. Flood Damage • Function of • Water precipiation • Drainage capability • Landforms • Floodplain usage • Population

  7. 4-2-4. Flood Effects • Primary • Loss of life • Damages to the properties • Loss of the soils • Pollution of water • Secondary • Disease (epidemic) • Shortage of supplies (food, water etc) • Economic hardship • Psychological damage

  8. 4-2-5. Human Interference • Artificial walls (levee) • Channel dredging • Dams • Discuss “Four Major Rivers Projects”

  9. For the third time in 15 years the Mississippi River massively burst its banks this spring, inundating tiny Missouri towns such as Winfield (population 720) and Foley (population 178), causing potentially billions of dollars' worth of destruction—although the damages are still being assessed—and hiking corn prices to $8.00 a bushel in the wake of the lost crop http://www.ehponline.org/members/2008/116-9/spheres.html

  10. http://igbs.kr/content.asp%3FMco...eNo%3D11 Soyang Dam

  11. 1963. 10. 9. Italy Vaiont Dam Disaster http://www.corbisimages.com/Enlargement/Enlargement.aspx?id=BE025609&ext=1 Flood Damage in Longarone Village A church tower remains standing in the Italian village of Longarone after flood waters from the Vaiont Dam roared through the village, destroying most of it and killing over 2,000 people. October 10, 1963.

  12. http://engjjang.egloos.com/viewer/10488208

  13. 4-2-6. Flood Forcasting? http://serc.carleton.edu/images/quantskills/methods/quantlitf http://www.trincoll.edu/~jgourley/GEOS%20112%20Stream%20Discharge.htm

  14. 4-2-7. Urbanization and Flood http://wps.prenhall.com/esm_keller_introenvgeo_3/21/5391/1380326.cw/content/index.html

  15. 4-2-8. Measures • Regulations on floodplain usage • Insurance • Preparation (of food and other supplies) for emergencies • Hazard map

  16. http://pinalcountyaz.gov/DEPARTMENTS/PUBLICWORKS/FLOODCONTROLDISTRICT/FLOODPLAIN/Pages/FloodplainTerms.aspxhttp://pinalcountyaz.gov/DEPARTMENTS/PUBLICWORKS/FLOODCONTROLDISTRICT/FLOODPLAIN/Pages/FloodplainTerms.aspx

  17. 4-2-9. Deadliest Floods (from Wikipedia “Flood”)

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