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19 terms

AP env,

AP environmental science
wind system that influences large climate and reverses direction seasonally
la nina
every 4-12 years, cools ocean surface on west
hadley cells
vertical and horizontal wind patterns
el nino
every 3-7 years, lasts 1 year
region of ocean near equator with calm winds
jet stream
high speed currents, affect local weather
polar easterlies
winds below latitude 60 degrees
travel S. and W. in northern hemisphere, west to north in southern hemisphere
constant weather patterns after 30 years. ex-avg. temp. and precipitation
80 km above earth's surface, where meteors burn up
110 km above Earth's surface, thinnest gas layer; absorbs solar wind and reflects radio waves
top of troposphere, temperature is high b/c of thin ozone
dew points
temp. when water vapor condenses to water
convection currents
holds lots of moisture
coriolis effect
winds in N hemisphere deflect right, south winds deflect left
greenhouse effect
traps solar radiation
10-20 km, where ALL weather takes place and clouds
layer of gas held close to Earth b/c of gravity
why Earth unevenly heated
1) more solar rays hit equator than poles. 2)tilt points away or closer to sun. 3) equator moves quicker than poles.