北京城市氣候變化與熱島效應(yīng)研究.pdf

1、南京信息工程大學(xué)碩士學(xué)位論文北京城市氣候變化與熱島效應(yīng)研究姓名：方永俠申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：應(yīng)用氣象學(xué)指導(dǎo)教師：申雙和20100501AbstractUnderthebackgroundofglobalclimatechangeandtheurbanizationstudiesoncharacteristicsofurbanclimateandcausesofurbanheatisland(UHI)，areveryimportanta

2、ndoftheoreticalsignificanceforrationalplanningonurbanconstructionimprovementofurbanenvironmentandresearchofresponsetoglobalclimatechange，Inthispaperbasedonweatherobservationdataandsatelliteimageryeffectofurbanizationonur

3、banclimate，spatialandtemporaldistributionofsurfacethermalfieldwereinvestigatedforBeijinginthepast30yearsThemainconclusionsareasfollowing：(1)UsingobservedmeteorologicaldatainBeijingfrom1977to2006，analysisoftrendsofurbancl

4、imatechange，resultsshowthatthetemperaturewasanupwardtrendduringthepedod，minimumtemperatureincreasedathighestspeed，andmaximumtemperatureatlowestannualprecipitationandaveragewindvelocityshowedadecreasingtrendIntheprocessof

5、urbanizationurbanpopulationconstructionscaleandenergyconsumptionhadlargeraffectonairtemperatureandwindspeedindowntown，butlessonprecipitation(2)Urbanheatisland(UHI)intensitywascomputedbasedonclimatedataanditWASfluctuatedi

6、nterannuallyandshowedailupwardtrendonaverage，strongerinwinterandatnight，weakerinsummerandondaytimeHeatislandintensityWasinfluencedbycloudCoverwithclosenegativecoelation(R=088)UHIbroughtaboutmoredays嘶nlllightemperature，le

7、sscold，moreintensifiedheat，heavier(3)WithaidofTMandMODISdatafrom2001to2007，spatialandtemporaldistributionoftheurbansurfacetemperatureandseasonalvariationinUHlwereanalyzedanditisfoundthatthesurfacetemperatureWasgreatlydif