Tropical storms Flashcards
1
Q
Where do tropical storms occur?
A
- Where sea temperature is over 27ºC
↳ mostly between 10 and 30º N+S of the Equater
2
Q
What are they?
A
Large areas of low pressure/extreme depressions
3
Q
How are they measured?
A
Using the Saffir-Simpson scale
4
Q
Location and date of storm
A
- Cyclone Nargis (LEDC)
- Landed on 2nd May 2008
- Burma, Myanmar - mainly
5
Q
Causes of storm
A
Developed in Bay of Bengal as a depressions then gained strength into a class 4 storm
6
Q
Effect of storm
A
- Around 84,000 dead
- 50,000 homeless
- Around $10 billion worth of damage
- Destroyed around 2 years worth of crops
- 75% of buildings collapsed
7
Q
Responses of storm
A
- Many governments donated money
- International relief teams
- Food, water, first aid, shelter
↳ however interantional teams were only allowed into Myanmar after 3 weeks
- Overtime people rebuilt their homes
8
Q
How are they made?
A
- Warm air from the sea surface and thunderstorms combine and warm air starts to rise
- More warm air rises and due to the Earth’s rotation, starts to move in a spiral. It cools and condenses and from clouds → releasing lots of energy
- The air starts to rise faster and cooler air is sucked downwards. Wind speed starts to increase
- The storm moves over the ocean, picking up warm, moist air. Wind reaches more than 120 km/has cold air is drawn into the eye
- Storms track westwards until they reach land and lose energy
9
Q
What are they main components for a tropical storm?
A
- Warm seas
- Warm and moist air
10
Q
Natural cycle
A
Series of events in nature that are repeated over and over again
11
Q
El Nino
A
A warming of the ocean surface off the western coast of South America
12
Q
Forecast
A
Monitoring development and movement of tropical storms
13
Q
Prepare
A
- Education programmes
- Water resistant houses
14
Q
Act
A
Evacuation plans
