Tropical storms Flashcards
1
Q
What are the conditions needed for tropical storms?
A
ocean temp of 27 degrees celcious ocean depth of at least 70m 5 degrees north and south of equator low level convergence air atmospheric instability latent heat and moisture supply
2
Q
what are the nature of tropical storms?
A
- low pressure weather systems
- develop in tropics
- 200-700km in diamter
- they begin with an area of low pressure
3
Q
how do tropical storms form?
A
- the sun sends incoming solar radiation to the earth which warms our oceans
- this warms the oceans to 27 degrees
- the high sea temp causes warm moist air to rise
- the evaporated air cools as it rises and condenses to form towering thunderstorms
- as the air condenses it releases heat which powers the storm and draws up more and more water from the ocean
- several smaller thunderstorms join together to form a giant spinning storm
- storm develops an eye (conditions calm here) the outer edge of eye wall is where strong winds occur
- as the storm is carried across the ocean it continues to gather strength
- as the storm moves towards land its energy supply is cut off as friction with the land weakens the storm
4
Q
why does management vary in HIC’s and LIC’s?
A
- lic’s don’t have access to tv and radio etc so therefore cannot communicate
- lack of education in LIC
- LIC’S are more densley populated
- HIC’S have better protection methods resources and information
- poorer countries cannot support themselves
- hic’s have more money