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Local and Global Winds
|The horizontal movement of air from an area of high pressure to an area of low pressure is referred to as
|The polar easterlies blows from the __________ and to the ____________.
|from the east to the west
|The prevailing westerlies blows from the __________ and to the ____________.
|from the west to the east
|A wind (weather) vane measures
|Winds over short distances are called
|Winds that blow in the same direction over long distances are called
|Both winds are caused by the
|unequal heating of Earth by the SUN (which causes differences in air pressure). The air pressure moves from high to low.
|What causes the winds to curve, instead of going straight?
|The rotation of Earth under the wind. This is called the Coriolis Effect
|What are the calm (wind) areas of Earth called?
|Horse Latitude and Doldrums
|Where are the Doldrums located?
|Whare are the horse latitudes located?
|30 degrees North and 30 degrees South
|Why are the doldrums clam (very little to no wind)?
|The equator receives direct sunlight, which causes the air to be warm, less dense, and rise. All of the air is rising.
|Why are the horse latitudes calm (very little to no wind)?
|The 30 degree latitudes are cold, high density, sinking air. All of the air is sinking.
|How are winds named?
|From the direction they are coming from
|Where would the lowest air pressure be on Earth? Why?
|The equator because it gets the most direct sunlight
|Where would be the highest air pressure be on Earth? Why?
|The North and South Poles because it gets the most indirect sunlight
|What is a land breeze?
|happens during the night this is when cool air is above the land creating a high pressure and warm air is above the sea creating low pressure then the air moves from the land to the sea creating a land breeze
|What is a sea breeze?
|happens during the day this is when cool air is above the sea creating a high pressure and warm air is above the land creating low pressure then the air moves from the sea to the land creating a sea breeze
|What is an instrument that measures the wind speed called?
|What is an insturment that shows the direction the wind is blowing called?