Local and Global Winds
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| The horizontal movement of air from an area of high pressure to an area of low pressure is referred to as | wind
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| The polar easterlies blows from the __________ and to the ____________. | from the east to the west
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| The prevailing westerlies blows from the __________ and to the ____________. | from the west to the east
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| A wind (weather) vane measures | wind direction
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| Winds over short distances are called | local winds
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| Winds that blow in the same direction over long distances are called | global winds
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| 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.
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| What causes the winds to curve, instead of going straight? | The rotation of Earth under the wind. This is called the Coriolis Effect
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| What are the calm (wind) areas of Earth called? | Horse Latitude and Doldrums
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| Where are the Doldrums located? | equator
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| Whare are the horse latitudes located? | 30 degrees North and 30 degrees South
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| 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.
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| 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.
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| How are winds named? | From the direction they are coming from
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| Where would the lowest air pressure be on Earth? Why? | The equator because it gets the most direct sunlight
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| Where would be the highest air pressure be on Earth? Why? | The North and South Poles because it gets the most indirect sunlight
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| 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
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| 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
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| What is an instrument that measures the wind speed called? | anemometer
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| What is an insturment that shows the direction the wind is blowing called? | wind vane
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mreyes5
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