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Test 4 Notes

28 Pages

Course Code
GEOG 2050

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GEOG 2050 test 4 notes April 16 chapter 8 weather meteorology climate climatology air mass source region continental polar cP maritime polar mP gulfAtlantic maritime tropical mT Pacific mT air mass modification humidified lakeeffect1CLIMATElong term yearsaAverage conditions sum of observationsiNWS 30year averagebWhat principles have you learned that help you define climate for a location2WEATHERshort term day to dayaDay to day condition of the atmospherebForecast future conditions for a particular daycMore chaotic less predictable than climatedNational Weather Service NWShttpwwwnwsnoaagoviMajor govnt agency that works on weatheriiDOPLAR radariiiSPCstorm prediction center produces radars and warnings3METEOROLOGY figure 81baScience of the atmosphereiPhysical conditioniiDynamicsthe way its moving around tornadoes and hurricanesiiiChemistry ozone layer aerosols etcivPhysicsvLinkage with land urban effect etcbForecast Future ConditionsiSatellitesiiSupercomputerscWhyiStorms can produce a tremendous amount of damage and loss of lifeiiEg 90 billion in 1998iiiKatrina 125 billionivDoppler Radar detects direction of moisture droplets indicating direction and speed of storms1EX HuntsvilleDoppler radar was hit by tornado Not good4DOPPLER RADARaRadarRAdio Detection And RangingbSends a microwave signal and listens for the reflectioniHow the original signal was alterediiChanges in frequency give velocity the Doppler EffectiiiSheldon Cooper on The Big Bang Theory dresses as the Doppler Effect for HalloweenhttpwwwyoutubecomwatchvY5KaeCZAaY5DOPPLER EFFECTaChange of frequency pitch caused by motion of the sourceiLike when you hear a train or ambulance go bybIn front of the moving object the waves are compressedcAfter the object passes the waves are not compressed anymoreiCompressed wavesmoving toward youiiUncompressed wavesmoving away from you6AIR MASSES figure 612611aThe Earths surface gives the overlying air its characteristicsiTemperature and moistureiiStability1Unstablewants to move up2Stabledoesnt want to move7AIR MASS CLASSIFICATION figure 82aBased on temperature and moisture of the source regioniMOISTURE1Maritime mwet air mass is over water and absorbs water2Continental cdry not a lot of moisture to absorbiiTEMPERATUREbased on latitudes1Arctic Acold2Polar Pcold3Tropical Thot4Equatorial Ehot5Antarctic AAcoldbWinter Pattern figure 82iContinental arcticcAcold dry stableassociated with high pressurespecific humidity is 01 gkg
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