A | B |
wind | moving air caused by differences in air pressure |
convection cells | the circular patterns caused by the rising and sinking of air |
Coriolis effect | the curving of moving objects from a straight path due to the Earth’s rotation |
local winds | winds that move short distances and can blow from any direction |
global winds | winds that are part of a pattern of air circulation that move across the Earth |
doldrums | area of low pressure around the equator where there is very little wind |
trade winds | the winds that blow from 30 degrees latitude to the equator in both hemispheres |
horse latitudes | area of high pressure located around 30 degrees latitude where there is very little wind |
westerlies | wind belts found in both the Northern and Southern Hemispheres between 30 and 60 degrees latitude |
polar easterlies | wind belts that extend from the poles to 60 degrees latitude in both hemispheres |
jet streams | narrow belts of high-speed winds that blow in the upper troposphere and the lower stratosphere |
mountain breeze | a breeze that blows from the top of a mountain towards the valley below |
sea breeze | a breeze that occurs during the day when warmer air over land rises and is replaced by cooler air from the water |
valley breeze | a breeze that blows from a valley up a mountain slope |
land breeze | a breeze that occurs at night when the air over the water rises and is replaced by cooler air from land |