區(qū)域洪水頻率分析在淮河流域的應用研究.pdf

1、河海大學碩士學位論文區(qū)域洪水頻率分析在淮河流域的應用研究姓名：林小麗申請學位級別：碩士專業(yè)：水文學及水資源指導教師：黃振平20050601AbstractProvidinghydrologicaldesignvalueXpsatisfyingdesignstandardsfortheconstructionandplanningofwaterpowerengineeringisamajorassignmentofhydrological

2、floodfrequencyanalysisTheprecisionofestimatedXpassociatesdirectlywiththeinvestmentandsafetyofthewaterpowerengineeringTherefore，hydrologicscholarsallthrou吐theworldhavemadeagreat10tofanalysisandresearchesandattainedmuchach

3、ievementHoweverduetothecomplexityoftheproblems，theproblemsaboutfloodfrequencyanalysisindatalackedornon—dataareahaven’tbeensolvedsatisfiedinparticularRegionalfloodfrequencyanalysisiStheeriectivemethodforfloodfrequencyanal

4、ysisindatalackedornon—dataareaIt’Sgoodatusingthemessageofadjacentstationandsolvestheproblemoflessinformationbyusingmulti—stationinformationforfloodfrequencyanalysisInthepaperwedegionalfloodfrequencyanalysisusedregionalre

5、gressionanalysisandL—momentindividuallywiththedataofbasinupwardXixianstationinHuaiheriverInthisPaDerthedefinitionofL—momentiSinterpreteddetailedlyandtheregionalfrequencyanalysisinthedatalackedornondataareabyusingL—moment

6、iSintroducedAfterstudyingtheLmomentmethodtoestimatetheexpectationfrequencyandtherelationamongtheexpectationfrequency，calculationfrequencyandsamplemagnitude，theauthorconcludesthatthevariationofexpectationfrequencyandcalcu

7、lationfrequencyiSsmallwhenthesamplemagnitudeissetto90AndthisconclusioniSanimportantreferencetotheregionalfloodfrequencyanalysisInthispaper，byusingtheregressionanalysistocalculateregionalhydrologicalfrequencytheadvantagea

8、ndshortageofdifferentregressionmethodsisdiscussed，andtheapplicationofregionalfrequencycurveinthedatalackedareaisspecializedThelatestprogressinstudyoftheregionalfloodfrequencyanalysisdenotedthattheprecisionofthismethodisr

9、athergoodHence，regionalregressionmethodisawaytoestimatingthedesignfloodofdatalackedornondataareainourcountryKeywords：RegionalFloodFrequencyAnalysis；designflood；fuzzyclustering；regionalregressionanalysis；leastsquare；Lmome