南宁机场云高仪与人工观测数据对比分析

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中图分类号：V321.2 文献标志码：A 文章编号：2095-2945(2026)08-0120-04

Abstract:Thisarticleuseshourlycloudlayercloud height meter detectiondataandmanualobservationdatafromNanning Airportfrom1986to2O22andusescovariance,waveletanalysisandothermethodstoanalyzethecharacteristicsoflowclouds atNaningAirport.Thediferencesbetweencloudheightmeterandmanualobservationdatafrom2O18to2O22arecompared andanalyzed.Theresultsshowthat:Thefrequencyoflowcloudspresentsdailyandseasonalvariaionswithhighinthe morming,lowintheafternonandlowatnighthighinwinterandspringseasons,andlowinsummerandautumnseasons;The averagecloudheightoflowcloudshasperiodicscalesofaround2a,4a,and8a,with2abeingthefirstmainperiod;The lowerthecloudheight，thesmalerthediferencebetweenthecloudheightmeterdetectionvalueandthemanuallyobserved data.Lowcloudswithcloudheight meterdetectionvalueslessthan3OOmeters haveacertaindegreeofavailability；TheFEW leveldetectedbythecloudaltimeterisbasicallyconsistentwiththecloudcoverleveldataobservedmanuallOthercloudcover leveldatacanonlybeusedasareferenceformanualobservation.Aftermanualcorection,thecloudcoverleveldatadetected by the cloud altimeter is more consistent with the cloud cover level data observed manually.

Keywords:low cloud;ceilometer;periodic variation; comparative analysis;manual correction

低云是影响航空飞行安全的气象要素之一，特别是云底高度低于 300m 的低云，对航空器起降具有显著影响[1-2]。（剩余6256字）