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《京津冀地區(qū)pm2.5濃度的遙感反演方法研究》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、市為高值城市。(4)考慮地形起伏對(duì)氣溶膠分布的影響，發(fā)現(xiàn)地形地貌對(duì)氣溶膠光學(xué)厚度的分布有很大的影響，且呈明顯負(fù)相關(guān)。地勢(shì)越高，該地區(qū)氣溶膠光學(xué)厚度值越低；地勢(shì)較為平坦的地區(qū)氣溶膠光學(xué)厚度值相對(duì)較高。關(guān)鍵詞：MODIS氣溶膠光學(xué)厚度PM2．5京津冀地區(qū)萬(wàn)方數(shù)據(jù)AbstractInthiseraoffasteconomicdevelopment，thecityscaleexpandsrapidly．Atthesametime，urbanairpollutionbecomesseriously,whichcausedbyvarioushumanfactors，such
2、asurbantrafficpollution，engineeringconstruction，industrialgases，naturalecologicaldestructionandSOon．Aatmosphericpollutionproblembringsunprecedentedchallengestotheurbanairquality．InmostareasinChina，thefineparticulatematterPM2．5hasbecometheprimarypollutant．Comprehensiveandeffectivemast
3、erofdistributionandchangingrulesofairpollutionisparticularlyimportanttourbanenvironmentalpreventionandtreatment．China’Sterritoryisvast，butthegeneralbusinessofenvironmentmonitoringreliesongroundroutinemonitoring．Thegroundmonitoringsitesaremainlydistributedintheregionofthelargemediumsi
4、zedcities．Airqualitymonitoringisstillatlowlevel．Comparedwiththegroundmonitoringstations，Satelliteremotesensingmonitoringhasthecharacteristicsoffast，macro，dynamicandeconomic．Ithasobviousadvantagesofspacecontinuityinthedynamicairpollutionmonitoring．Therefore，satelliteremotesensingisone
5、oftheimportanttechnicalmethodsinairpollutionmonitoring，forurbanandregionalenvironmentalairqualitymonitoringandcontr01．ThecorrelationbetweenthemassconcentrationofatmosphericPM2．5andtheMODISaerosolopticaldepthisdiscussed．Satelliteremotesensingestimationmodelisproposedtoderivetheannuala
6、ndseasonalPM2．5massconcentration．Meteorologicalfactorsareappliedtomodifythemodelandimprovetheaccuracyofthemodel．BasedontheMODISAODproductsandgroundPM2．5massconcentrationdata，itisanalyzedthatPM2．5massconcentrationchangesanddistributespatiallyinBeijing—Tianjin—Hebeiregion．Themainresear
7、chcontentsandresultsareasfollows：(1)AdoptingMODISAODdataandPM2．5massconcentrationdata，theregressionmodelisestablished．ItshowsthatthecorrelationbetweenAODandPM2．5valuecoefficientisnothigh，SOitCan’tdirectlybeusedtoestimatethesurfacequalityofPM2．5concen仃ations．Thenusemodelingdatatomakef
8、ittinganalys
