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weather unit vocab 7

atmosphere the mixture of gasses around Earth
air pressure measure of force which particles in the air push on an area
troposhere lowest layer of the atmosphere
stratosphere 2nd layer of atmosphere, 50km up
mesosphere meteors are destroyed here, 3rd layer of atmosphere
ionosphere layer above the stratosphere
exosphere last layer of atmosphere
thermosphere thermal energy is transferred by touch
ozone layer protects earth from harmful radiation
greenhouse effect process which gases in the atmosphere adsorb and give off infrared radiation
temperture average kinetic energy in the air
thermal energy total kinetic energy in the air
thermal expansion increase in volume that results from an increase in temperture
heat is energy transferred between objects a different temperture
radiation transfer of energy through electromagnetic waves
convection transfer of energy through movement of matter
conduction transfer of energy through direct contact
wind movement of air
Coriolis effect the apparent curving of the path an object is going even if it is going straight
Jet stream narrow belts of high speed winds that travel west to east
local wind movement of air over short distances
land breeze during night the cooler air of the land blows to the sea
sea breeze during the day the cooler air of the sea blow onto the land
mountain breezes at the night the cool breezes come off the mountain to the valley
valley breeze at day the cool air of the valley blows to the mountains
global winds the wind systems across Earth
trade winds 30 degree to equator blow to west
westerlies between 30 degrees and 60 curve east
polar easterlies between poles and 60 degrees, cold sinking air
horse latitudes at 30 degrees air sinks
doldrums the trade winds meet here, at the equator
weather the condition of Earth's atmosphere at a certain time
humidity amount of water vapor in air
relative humidity amount of water vapor in the air compared to the amount in the land
dew point temperature saturation when more condensation then evaporation
precipation any form of water falling to Earth's surface
cirrus wispy clouds made of ice
cumulus form in fair weather, can produce rain
stratus they spread, low and dark can produce rain
air pressure force of air pushing at a certain point
high air pressure density air sinks and moves outward, clockwise
low air pressure density air rises can cause clouds and rain
air mass large volume of air in temp. is constant
front forms between air masses
warm front follows cold air front
cold front pushes warm air up
stationary front warm,cold front stay still
occluded the force of a cold front pushing a warm front up
evaporation liquid turns into solid
condensation when water vapor becomes a liquid
runoff when water goes back to a large body of water
Created by: 306781