What secondary impacts may occur due to a Tropical Storm?
Storm Surge, Strong winds and River and Coastal Flooding
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What is a Storm Surge?
Increase in sea level by about 3 meters in height that sweeps inland flooding low-lying areas
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What causes a Storm Surge?
Combination of intense low atmospheric pressure of the tropical storm with powerful driving surface winds
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What threats do Storm Surges pose?
Extensive flooding, loss of life, inundate agricultural land with salt water and debris as well as polluting fresh water supplies, destroy houses and infrastructure
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Name a Storm that caused a Storm surge:
Hurricane Katrina, USA, surge up to 7.6m record high.
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Why do Strong Winds pose a threat?
Average winds speeds of up to 120 km/h, damage/ destroy vehicles, buildings, bridges
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Why does a combination of debris and strong winds pose a serious threat?
They turn into flying missiles, killing more people and damaging more property
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What factors are required for the formation of a Tropical Storm?
Sea surface temperature in excess of 26°C , Regions of intense atmospheric instability such as the ITCZ, Oceans required for water vapour, rotation of earth and strong trade winds
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Other cards in this set
Card 2
Front
What is a Storm Surge?
Back
Increase in sea level by about 3 meters in height that sweeps inland flooding low-lying areas
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