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Atmosphere Vocab


troposphere the lowest atmospheric layer; from 4 to 11 miles high (depending on latitude)
stratosphere the atmospheric layer between the troposphere and the mesosphere
mesosphere the atmospheric layer between the stratosphere and the thermosphere
ionosphere the outer region of the Earth's atmosphere; contains a high concentration of free electrons
thermosphere the atmospheric layer between the mesosphere and the exosphere
exosphere the outermost atmospheric layer
ozone layer a layer in the stratosphere (at approximately 20 miles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun
conduction the transmission of heat or electricity or sound
convection the transfer of heat through a fluid (liquid or gas) caused by molecular motion; (meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere
radiation energy that is radiated or transmitted in the form of rays or waves or particles; the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
greenhouse effect warming that results when solar radiation is trapped by the atmosphere; caused by atmospheric gases that allow sunshine to pass through but absorb heat that is radiated back from the warmed surface of the earth
heat a form of energy that is transferred by a difference in temperature
greenhouse gas a gas that contributes to the greenhouse effect by absorbing infrared radiation
meteorology the earth science dealing with phenomena of the atmosphere (especially weather); predicting what the weather will be
weather the meteorological conditions: temperature and wind and clouds and precipitation
climate the weather in some location averaged over some long period of time; the prevailing psychological state
water vapor water in a vaporous form diffused in the atmosphere but below boiling temperature
atmospheric pressure the pressure exerted by the atmosphere
isotherm (meteorology) an isogram connecting points having the same temperature at a given time
air pollution pollution of the atmosphere
Chlorofluorocarbons a group of chemical compounds that when released into the atmosphere can damage the earth’s ozone later
humidity wetness in the atmosphere
hygrometer measuring instrument for measuring the relative humidity of the atmosphere
dew point the temperature at which the water vapor in the air becomes saturated and condensation begins
cloud a visible mass of water or ice particles suspended at a considerable altitude
cirrus cloud a wispy white cloud (usually of fine ice crystals) at a high altitude (4 to 8 miles)
stratus cloud a large dark low cloud
cumulus cloud a globular cloud
cumulonimbus cloud a dark cloud of great vertical extent charged with electricity; associated with thunderstorms
fog droplets of water vapor suspended in the air near the ground; an atmosphere in which visibility is reduced because of a cloud of some substance
precipitation the falling to earth of any form of water (rain or snow or hail or sleet or mist)
Created by: keh



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