Typhoon Haiyan
Details
Effects
Responses
About Philippines
NEE HDI = 0.699
Population = 100 million
Rapidly urbanising
Formed at 5 degrees N and tracked W. Gaining power until it hit the Phillippines. Here power disapated as it lost its power source (the ocean) and experience friction from the land.
Winds of 195mph when hit the Phillippines.
Brought a 6m storm surge which swept away lots of houses. Many people were sheltering in basements when it came = lots of deaths
95% of trees destroyed
6,000 deaths
Debris everywhere, roofs torn off.
Primary
Secondary
Roofs torn off by high winds
95% of trees destroyed
6,000 deaths
195mph winds
6m storm surge
Heavy rainfall = lots of flooding
Spread of diseases such as cholera and tetnus
Lack of food, no access to some islands
Homes and livelihoods destroyed
Infrastructure destroyed
Pollution of oceans
Dead bodies spreading disease
Immediate
Long-term
Relief sent from other countries as well as search and rescue teams eg. in Guion
Mobile hospitals set up, as well as areas for tetanus jabs. eg. Ormoc Town
Survivors pulled bodies from the water.
Houses were moved away from vulnerable coastal areas.
205,000 homes pledged to accommodate 1 million people (only 1% built) - 'Build Back Better'
'No dwelling zones' - in areas particularly vulnerable to tropical storms.
PRIMARY EFFECTS = Storm Surge, High Winds and Heavy Rainfall
Formed 5 degrees N of the equator and tracked W, gaining power as it came. As it crossed the Philippines, it was strongest. It continued on N and finally dissipated in China
Structure of a Tropical Storm
Middle = Eye, area of complete calm, low winds and no rain. 20km across?
Eye Wall - Just outside the eye, strongest winds and heaviest rain in the storm.
Rain bands - bands of clouds radiating out from the center of the storm, lighter rain the further away from the eye you get.
Conditions needed for tropical storm formation
Sea temperatures = 26.5 or 27
Coriolis effect
Needs high levels of isolation to heat the sea. This leads to warm moist air rising creating an area of LP
Creates the spinning motion of the storm but the storm itself is carried on prevailing winds.
Low wind shear
Means clouds are not ripped apart
Not along the equator
Allows the Coriolis effect to occur. At a point on the equator, the earth is not spinning in a way that would create the spinning motion of the storm.
Global Distribution of Storms
Storm names
Atlantic Ocean and Eastern Pacific = Hurricanes
Eastern Pacific = Typhoons
Indian and South Pacific = Cyclones
Where are they the most frequently?
9 cargo planes sent to Cabu
$13 billion in damage