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Department
Computer Science (Sci)
Course
COMP 251
Professor
Michel Lapointe
Semester
Winter

Description
2EnergyTheAtmosphere17032014Readingspage161168171180EarthisheatedbyvisibleradiationfromthesunCoolsbyreflectinginfraredraysEarthssurfacetempIncidentsunlightReflectivityoftheplanetGreenhouseeffectCloudscaneitherwarmorcoolthesurfacedependingonthicknessandaltitude40ofsunsenergyisemittedasinfrared10ofsunsenergyisemittedasultravioletRadiationemittedbyablackbodyisknownasblackbodyradiationStefanBoltzmannLaw4FluxemittedbyablackbodyConstantTemperatureAtmosphericpressurevarieswithaltitudePressureForceAreaPressureislowerathigherlevelsPressureishigheratlowerlevelsPressuredecreaseexponentiallywithaltitudeAtmosphereTroposphereStratosphereMesosphereThermosphereCloudydaysarecoolCloudynightsarewarmAlargepartofplanetaryalbedoisfromcloudsWatervapourfeedbackHighertempMoreevaporationMoregreenhouseHighertempIceAlbedofeedbackMoreiceHigheralbedoLessheatMoreiceSLIDESAtmosphere78Hydrogen20OxygenVariablegasesWatervapourCarbondioxideHalfoftheairintheatmosphereiswithin55kmTherestiswithin30kmWiensLawWavelengthofanobjectdecreaseswithtemperatureGreenhouseeffectHeatisbeingemittedbythesurfacePartlybeingabsorbedbycloudsandgreenhousegasesThisgreenhouseabsorbedheatisreemittedtothesurfacewarmingitAbsorptionismainlythroughcloudsandwatervapourPositivefeedbackplantdecompositionMoreco2HighertempMoredecompositionofplantsMoreco2
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