LECTURE_17_04-08-10_Chap_14-Hurricanes

LECTURE_17_04-08-10_Chap_14-Hurricanes - Climate/weather...

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Unformatted text preview: Climate/weather Hazards NEW STUFF (Chap. 14) Hurricanes, Typhoons, and Cyclones Associated Hazards/Damages-Storm surges-Waves and wave damage-Wind and wind damage-Rainfall and Flooding Hurricanes and tropical storms in underdeveloped countries NEXT WEEK: Lecture/overview on Hurricane Katrina ( Tues ); Video/quiz Inside Hurricane Katrina ( Thurs. ). Hazards associated with Hurricanes FOUR MAIN HAZARDS WITH ALL HURRICANES: Storm surges Waves and wave damage Wind and wind damage Rainfall and flooding STORM SURGE Storm surge (storm tide): Occurs when very low atmospheric pressure over the ocean permits sea level to rise-Occurs during very low pressure storm conditions (Extreme during hurricanes)- Normal atmospheric pressure condition push down on ocean; low pressure allows oceans (sea level) to rise -High winds can push or stack sea water into large-scale mounds of water resulting in coastal flooding (salt water intrusion)- As high as >7 meters and up to 80-160 km wide-Typically not just one surge but multiple surges during a tropical storm/hurricane Storm-surge effects Fig. 14-24, p.369 Fig. 14-24, p. 369 Fig. 14-25, p. 369 Storm surge: highest on right- front quadrant of storm -- in the area of onshore winds Florida Great Lakes North Carolina Storm surge highest on E of north-moving storm eye s u r g e w i n d s Hazards associated with Hurricanes FOUR MAIN HAZARDS WITH ALL HURRICANES: Storm surges Waves and wave damage Wind and wind damage Rainfall and flooding Waves and Wave Damage-Erosion of sand from beaches resulting in undermined structures...
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This note was uploaded on 11/11/2011 for the course ISP 203 taught by Professor Paquette during the Fall '08 term at Michigan State University.

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LECTURE_17_04-08-10_Chap_14-Hurricanes - Climate/weather...

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