Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account

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.

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording