TroposphereLeonard Yang, Daniel Gesling, Anna Sheng

What it is Lowest layer of the Earth’s

atmosphere Greek word Tropos=“mixing” Friction; air & earth’s surface 11km ML, 12km TR, 7km Poles

http://images.google.com/imgres?q=layers+of+the+atmosphere&hl=en&biw=1440&bih=689&gbv=2&tbm=isch&tbnid=tB6CHcnNaQGXzM:&imgrefurl=http://www.vtaide.com/png/atmosphere.htm&docid=XKkzfazcFvrU8M&w=800&h=600&ei=yNZxTp2wCMP3mAWnyZzxCQ&zoom=1&iact=hc&vpx=178&vpy=184&dur=609&hovh=194&hovw=259&tx=116&ty=122&page=1&tbnh=131&tbnw=175&start=0&ndsp=22&ved=1t:429,r:0,s:0

What Happens Most weather occur here Hosts earth’s water cycle Purify and deliver water Maintain earth’s natural thermostat

http://www.whitegadget.com/attachments/pc-wallpapers/66321d1313124199-weather-weather-photo.jpg

http://upload.wikimedia.org/wikipedia/commons/thumb/9/94/Water_cycle.png/320px-Water_cycle.png

Conditions Very warm (heat produced by earth’s

surface) But…

Temperature drops Tropopaus

http://science.nasa.gov/media/medialibrary/2007/07/18/18jul_tc4_resources/layers_strip.gif

http://apollo.lsc.vsc.edu/classes/met130/notes/chapter8/graphics/trop_hgt.free.gif

BIBLIOGRAPHY “Temperature In The Atmosphere” National Earth

Science Teachers Association (NESTA) 2000 - 2010. © 2011 National Earth Science Teachers Association. 15 September 2011.<http://www.windows2universe.org/earth/Atmosphere/troposphere_temperature.html>

“Troposphere” Universe Today. Copyright © 1999–2011. 15 September 2011.<http://www.universetoday.com/41559/troposphere/>