ocean water: miscellaneous info
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Ocean Water: Miscellaneous Info. Shoreline Features. Barrier Islands are narrow sandbars that are parallel to, but separate from the coast About 300 barrier islands along US coast Islands are about 10-100 miles off coast Ex: Outer Banks of North Carolina Ex: Cape Cod, Massachusetts - PowerPoint PPT PresentationTRANSCRIPT
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Ocean Water: Miscellaneous
Info
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Shoreline Features
• Barrier Islands are narrow sandbars that are parallel to, but separate from the coast
• About 300 barrier islands along US coast• Islands are about 10-100 miles off coast– Ex: Outer Banks of North Carolina– Ex: Cape Cod, Massachusetts– Padre Island, Texas
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• Between the mainland and barrier islands you would find estuaries, bays, and lagoons– Estuaries are partially enclosed
bodies of water where salt water mixes with freshwater
– Lagoons are shallow, salty bodies of water• Note: all of these areas are
excellent breeding grounds for many animals since they are salty but protected from harsh waves/currents due to barrier islands
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Now, let’s talk HURRICANES
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• Hurricanes are whirling tropical cyclones (low pressure/rotate counterclockwise)
In other parts of the world, these storms are called typhoons, cyclones, and tropical cyclones
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• Hurricanes that hit the east coast originate in the equatorial waters near Africa
Someone, please remind me…WHY?
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Saffir-Simpson Scale is used to measure a hurricane’s intensity
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Lifecycle of a Hurricane1. Tropical Depression – wind speeds less or equal to
38 mph2. Tropical Storms – wind speeds 39-73 mph3. Hurricane – wind speeds greater than 74 mph
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• Once they reach Tropical Storm status, cyclones are named
Hurricane Katrina Storm Surge
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Ocean Structure