南京地區(qū)雷電多種觀測(cè)資料分析與應(yīng)用.pdf

1、南京信息工程大學(xué)碩士學(xué)位論文南京地區(qū)雷電多種觀測(cè)資料分析與應(yīng)用姓名：張祎申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：大氣遙感科學(xué)與技術(shù)指導(dǎo)教師：王振會(huì)20100501南京地區(qū)雷電多種觀測(cè)資料分析與應(yīng)用AbstractLighmingactivitiesmaycauseseriousdamagetohumansocietyforitsinstantaneityrandomieityandpowerfulenergyTheeffectiveanalysisan

2、dapplicationoflightningdataisofgreatimportanceinimprovingtheknowledgeofthelightning，andultimatelyreducinglightningdisastersInthispaperconvectiveprecipitationandlightningcharacteristicsoftheconvectiveprecipitationcloudsin

3、NanjingDistrictalestudied麗ththemethodofthestatisticalanalysisviatheTRMMsatellitedataAndthenLSSVM(Leastsquaressupportvectormachine)methodispresentedtoforecasttheOCCUrrenceofthunderstorminthisareabycombiningNCEPFNLOperatio

4、nalGlobalAnalysisdataon1010degreegridsandcloudtogroundlightningdataFinallybasedonmultifractaldetrendedfluctuationanalysis(MFDFA)methodthecomplexityoflightningdischargeinNanjingdistrictalestudiedviatheatmosphericelectricf

5、ielddataTheresultshowsthat：(／)ConvectiveprecipitationisthemaincontributortotheprecipitationwhenconvectiveprecipitationcloudisatdevelopingstageWhileatmatureordissipatingstage，convectiveprecipitationischangingintostratifor

6、mcloudprecipitationandasaresultthelattermakesalargercontributiontothetotalprecipitationinproportionWhenitcomestoprecipitationrateandrain—topheighttheconvectiveprecipitationisquitedifferent&orethestrafiformcloudprecipitat

7、ionTheanalysisalsoindicatesthatthemicrowavebrightnesstemperatureand2kmaltitudeprecipitationrateexistanegativecorrelationSOitcanbeanindexteflectthenearsurfaceprecipitationrate，especiallywhenconvectivesystemsaleatmatureord