Tropical Storms 3.5 / 5 based on 2 ratings ? GeographyNatural hazardsGCSEOCR Created by: Karin JohanssonCreated on: 09-06-13 12:44 what are tropical storms? intense low pressure weather systems - huge storms with strong winds and torrential rain 1 of 18 what conditions do you need for a tropical storm? sea water 27*c or above, warm moist air evaporates and condenses releasing lots of energy 2 of 18 why do tropical storms lose energy over land? energy supply from warm water is cut off 3 of 18 in what direction do tropical storms move? west due to easterly winds near equator 4 of 18 where do tropical storms occur? between 5-30* north and south of equator (no further as water is not warm enough) 5 of 18 what are the characteristics of a tropical storm? spin anticlockwise, circular, last 7-14 days, 6 of 18 what is the centre of the storm called? the eye- up to 50km, caused by decending air, low pressure, light winds, no clouds, no rain 7 of 18 what surrounds the eye? eye wall- spiralling rising air, strong winds, torrential rain 8 of 18 primary impacts? deaths, damages infrastructure, flooding, no electricity, crops damages, kill livestock, landslides, erode beaches, coastal habitats, sewage contaminates water 9 of 18 secondary impacts? homeless, lack of clean water, lack of food, lack of sanitation, disease, emergency aid cant get it, unemployment, psychological problems 10 of 18 why is the impacts more severe in LEDCs? poor housing, infrastructure, people depend on farming, not a lot of money to protect, poor healthcare 11 of 18 why do people not move away? jobs, family, friends, wont happen again, always lived there 12 of 18 5 ways to reduce the impacts of a tropical storm? prediction, planning, education, building techniques, aid 13 of 18 reducing impacts of a tropical storm- prediction radar, satellites, aircrafts to warn people - expensive and need training 14 of 18 reducing impacts of a tropical storm- planning emergency rescue, and plan evacuation 15 of 18 reducing impacts of a tropical storm- education how to prepare, make a survival kit- food, water, medication 16 of 18 reducing impacts of a tropical storm- building techniques withstand storms, fixed roofs, reinforced concrete, flood defences - expensive but saves money 17 of 18 reducing impacts of a tropical storm- aid send in emergency - food, water, tents 18 of 18
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