Determinationoftheboundarylayertopfromlidarbackscatterprofilesusing a HaarwaveletmethodoverWuhan,China

摘要

The boundarylayer(BL)isalowerlayeroftheatmospherethatisdirectlyinfluencedbytheEarth’s surface andrespondstosurfaceforcing.Inthisstudy,aMielidar(lightdetectionandranging)system was utilizedtomeasuretheboundarylayeroverWuhan,China.WeemployedtheHaarwavelet covariancetransform(WCT)methodtofindtheboundarylayertoptoourlidardataset.Wethoroughly analyzedthewell-mixedcaseandcasesinvolvingclouddropletsandpollutionaerosolsthatwere detectedabove,withinandbelowtheentrainmentzone.Inaddition,theprimaryresultsindicatethat the WCTmethodbasedontheparametersselectedwecandetecttheBLtopandthecloudbaseofa profileautomatically,effectivelyandaccurately,ofwhichtheentrainmentzoneisnotconcealedby an opticalthicklayer.Therefore,ageneralpatterncanbeconcludedafteralong-termmonitoring is completedinthefuture.Furthermore,theBLtopexhibitsnearlyareal-timefeedbacktocloud existence