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20 terms

science-Atmosphere

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exosphere
the highest layer of atmospher 500km+
very few molecules
greater than 800c
hydrogen and helium
hubbel telescope
thermosphere
hottest layer,85km-500km,aurora borealis, thin gases
mesosphere
50km-85km, meteors,ionosphere,-5c-90c,
stratosphere
contains ozone layer, 10km-50km, weather balloons,
troposphere
10km, lowest layer, 99% water vapor75% gasses,weather
jet stream
a high-speed high-altitude airstream blowing from west to east near the top of the troposphere
doldrums
no wind
coriolis effect
the shifting of winds currents from their expected paths that is caused by earth's rotation
density current
a current that forms in the ocean because a mass of a seawater becomes more dense than the surrounding water and sinks
surface current
a current in the ocean that moves water horizontially,or parallel to earth's surface
upwelling
a vertical circulation in the ocean that brings deep, cold water to the ocean surface
sea breeze
currents created during the day because solar radiation warms the land more than the water,so the sea moves towards the warm land.
land breeze
movement of air from land to sea at night, created when cooler, denser air from the land forces up warmer air over the sea and the sea moves away from the land
atmosphere
thin layer of air that forms a protective covering around the planet
ionosphere
layer of electrically charged particles in the thermosphere that absorbs AM radio waves during the day and reflects them back at night
ozone layer
layer of the startosphere with a high concentration of ozone; absorbs most of the sun's harmful ultraviolet radiation
ultraviolation radiation
one of the many types of energy that copmes from the sun
trade winds
steady winds that blow 30 degrees latitude north and south
westerlies
prevaling winds that blow from west to east between 30 degrees & 60degrees latitude in the hemisphere.
polar easterlies
Prevailing winds that blow from east to west between 60degrees-90degrees latitude in both hemisphere.