Weather Patters Flashcards
Convection currents
Gasses or liquids that fall in a circular
Sea breeze
The sun warms the land and the air above it more quickly than the water along the shore
Land breeze
The land at night cools quickly making the water temperature warmer than the land
Coriolis effect
The rotation of the earth causes objects in the northern hemisphere to deflect to the right while objects in the Southern Hemisphere are deflected to the left
Jet stream
A band of very fast moving wind caused by differences in temperature, about 10 km above ground. It moves west to east in the Northern Hemisphere and east to west in the Southern Hemisphere. The polar jet stream mostly effects the u.s
Trade winds
Winds that blow towards the equator *bring cold air to the tropics. Affect moisture in the air- bring tropical storms. Used by sailors to sail west
Doldrums
A spot near the equator where there are very few winds.
“Traps” ships
Prevailing winds
Winds that blow from the equator *brings warm air from tropics to poles
Prevailing westerlies
Winds that blow away from the equator and blow west to east. They are found over the United States and on the east coast of the U.S. Brings warm water to the poles
Polar easterlies
Winds that are found near the poles and move east to west