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Weather & Climate KQ 3 (What Are Tropical Cyclones? (-Range in…
Weather & Climate KQ 3
What Are Tropical Cyclones?
-Range in Diameter from 150km - 1500km
-Strong Winds
Low Central Pressure
Usually Found 8° - 15° North n South of Equator
Hazards Associated with Tropical Cyclones
Strong Winds (1992 Hurricane Andrew, Speeds of up to 177km/h, Major Damage)
Torrential Rain (Large Amount of Rainfall Resulting in Inland Flooding, 2003 Hurricane Isabel USA, Flooding Rivers, 2.3 Billion worth of Damage)
Storm Surges (Sudden Rise in Sea Level, Water Piled up Against a Coastline)
Impacts of Tropical Cyclones
Economic Impacts
High Cost of Reparation
(Hurricane Katrina USA 2005,81 Billion Damage Repair)
Social Impacts
Disruption of Water Supply, Sanitation and Hygiene Facilities (Cyclone Alia West Bengal, Contaminated Drinking Water, 1k Infected People n 14 Deaths
Physical Impacts
Damage to Key Infrastructure
(Typhoon Ketsuna 2009, Damage to Roads in Philippines, Laos, Cambodia, 80% of Healthcare Centres in Manilla Destroyed)
Responses to Tropical Cyclone
Emergency
Action
(E.G Cyclone Proof Shelters in Bangladesh)
Mitigation Measures
Land Use Control
Floodplain Management
(Restrict Development in Flood Prone Areas
Coastal Plain Management
(Restrict Development Near Coast)
Reducing Vulnerability of Infrastructure
Prediction n Warning
(Adv: If Predictions are Right, People can Easily Evacuate Beforehand) (Disadv: Predictions aren't 100% Accurate, Warning Systems only give Few Minutes for Evacuation before Tsunami)