Hydrology and Hydraulics Occurrence and Movement of Water.
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Transcript of Hydrology and Hydraulics Occurrence and Movement of Water.
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Hydrologyand
HydraulicsOccurrence and
Movement of Water
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Why do We Care About Water?
• It’s 2/3 of our Bodies & covers 2/3 of our Planet
• Where is most of this Water? – 97.2% Oceans - 320 million cubic miles of water – 2.15 % Ice Caps and Glaciers – – The Antarctic Ice Sheet is 6 million sq miles and
1000 ft thick. 7 million cubic miles of Frozen Water. That more water than all the rivers in the world flowing for 750 years
– 1% Freshwater – Streams, Rivers, Lakes and Groundwater
– Less than 0.1% is accessible to humans
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Why is water Important to US?
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Navigation
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Water POWER
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Hydropower
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Water Supply
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Dangers of Living Near Water?
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A Flood is?
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Urban Floodinghttp://www.youtube.com/watch?v=kYUpkPTcqPY
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What Causes Floods?
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Hurricane IKE
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Wind
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Wind – Storm Surge
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IKE Gilchrist TX
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ICE JAMS
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Volcanos
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Tsumanis-Earthquake & Volcanoes10 Deadliest Indian Ocean Tsunamis Date Source Deaths26 Dec 2004 Sumatra22500027 Aug 1883 Java/Sumatra 3650026 Jun 1941 Andaman Sea 50003 Sep 1861 Sumatra 170016 Jun 1819 Arabian Sea 154328 Nov 1945 Arabian Sea 1000+16 Feb 1861 Sumatra 9052 Apr 1762 Bay of Benga l50019 Aug 1977 Sunda Islands 5004 Jan 1907 Sumatra 400
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How Can You Lessen Floods?
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Levee or Dam?D
AM
Levee – Along River
Dam – Across River
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Structural Failure - Dams
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Developed Conditions
Levee
Natural Water Level
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Structure Failure - Levees
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We Protect People from
WaterAnd
Water from People
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