Global distribution of energy Flashcards
The wind is created by…
differences in pressure.
Elevation and topography significantly affect…
the speed and direction of the surface wind belts.
The pressure gradients change with…
ITCZ.
Albedo and land mass have a great impact on…
the pressure gradients.
The strongest winds are at…
ITCZ, due to extremely low-pressure areas, creating steep pressure gradients.
During winter South Equatorial ocean current in Atlantic ocean is…
cut by cold water so there are no hurricanes during winter in the Gulf of Mexico
The North Atlantic Drift brings hot air which is…
saturated with water, causing rainy weather in Britain.
The insolation causes water to…
warm up, making it less dense, so it rises up and moves polar-wards where the water is colder and denser.
The direction of ocean currents can be changed by…
the coastline and by other currents. E.g. Gulf stream is directed towards Britain due to Labrador current.
In winter Labrador current is more…
dominant, so less warm water is in North Atlantic Drift.
The Labrador current is stronger because…
the ITCZ moves South.
The Labrador current reduces the temperatures of…
the western side of Atlantic ocean, while the warm North Atlantic Drift rises temperatures on the eastern side.
As ITCZ moves closer to…
North, more warm water enters the Gulf of Mexico. This increases the risk of latent heat and formation of doldrums.
Rossby wave is a band of…
jet streams. They are formed by disturbances in jet streams, causing them to move poleward or southward. They are large-scale and fast moving up to 200km/h.
Rossby waves are made of…
westerly winds which follow a ridge and trough-like pattern in the upper troposphere.
