Study of the weather E/E Ch. 12 Meteorology Study of the weather E/E Ch. 12

Weather and Climate Climate-long term weather patterns of an area, like an average Weather-current state of the atmosphere

Currents seek to equalize heat

Air masses Large body of air with similar humidity and temperature Can cover 1000s of miles

Classifying air masses Based on source regions (Fig.12-3) 4 types: mT: maritime tropical (warm, moist) mP: maritime polar (cold, moist) cT: continental tropical (warm, dry) cP: continental polar (cold, dry)

Coriolis Effect Where the rotation of the Earth deflects the wind To the right in N hemisphere To the left in S hemisphere coriolis effect - Google Video

Jet Streams Narrow bands of fast, high-altitude, westerly winds Race up to 120mph

Fronts Boundary between 2 air masses Warm and cold fronts Stationary and occluded fronts Fig. 12-7(a-d)

Cold Front

Stationary fronts-2 air masses have been modified, so not much disparity; no heavy rain. Occluded fronts-when a really fast moving cold front pushes up a warm front and it collides with a cold front ahead of it

Occluded front

Gathering data Barometer-air pressure Anemometer-wind speed Hygrometer-relative humidity Ceilometer-height of cloud layers

doppler effect - Google Video

References http://rammb.cira.colostate.edu/research/winter_weather/images/winter_weather_intro.gif http://www.galapagosonline.com/Galapagos_Natural_History/Oceanography/Currents.jpg http://www.hhs.gov/web/images/sumo2.png http://earth.usc.edu/~stott/Catalina/images/weatherimages.jpg/airmasses.jpg http://video.google.com/videosearch?hl=en&q=coriolis%20effect&um=1&ie=UTF-8&sa=N&tab=wv# http://www.uwsp.edu/geo/faculty/ritter/geog101/textbook/circulation/6-cell-model_nasa_jpl_large.jpg

References http://www.fas.org/irp/imint/docs/rst/Sect14/FIG07_014A.jpg http://www.free-online-private-pilot-ground-school.com/images/warm-front.gif http://video.google.com/videosearch?sourceid=navclient&rls=TSHA,TSHA:2005-45,TSHA:en&q=doppler%20effect&um=1&ie=UTF-8&sa=N&tab=wv# http://www.phschool.com/atschool/science_activity_library/images/properties_sound_doppler.jpg