Coriolis Effect and Travel Paths - Allie & Zoe - Orange class



Coriolis Effect
:

- The state of water and air on Earth being swerved in the opposite direction due to Earth's rotation
- Causes winds to move in their specific paths, therefore directing hurricanes to where they go
- Most powerful determinant in wind patterns
- Doesn't affect westerly winds


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Northeast Trade Winds:
- Caused by the Coriolis effect
- Carries hurricanes westward from Africa to the westerly winds
- Goes 20-30 mph

Traveling:
- Hurricane may reach high enough to touch troposphere
- It can spread across the surface of the planet and cover hundreds of square miles of land and sea
- Hurricanes travel under warm water, particularly the Gulf Stream
- After NE Trade Winds, hurricanes are carried by westerly winds

Circulation of Air:
- Air north of the equator moves in a clockwise direction
- Air south of the equator moves in a counter-clockwise direction
- All move in a circular direction


coriolis.jpg

Developing Hurricanes:
- Atlantic Basin storm must move over latitudes of 10 and 30 degrees North to further develop
- Cape Verde Islands at this latitude
- Ocean temperature has to be 80+ degrees for a storm to further develop

Storm's Weaknesses:
- Traveling over land cuts off hurricane's supply of water and heat
- Cold water doesn't have enough heat and evaporating water to support the hurricane

Sources:
- Hurricane Andrew Lab ~ Introduction to Hurricanes
- Notes:
+ Sept. 15
+ Sept. 16
+ Sept. 20
- Hurricane Test study guide
- Hurricane Test