江蘇大豐港海域水深遙感與西洋深槽穩(wěn)定性研究.pdf

1、南京師范大學(xué)碩士學(xué)位論文江蘇大豐港海域水深遙感與西洋深槽穩(wěn)定性研究姓名：錢明霞申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：地理學(xué)；遙感技術(shù)與應(yīng)用指導(dǎo)教師：黃家柱20090522IIAbstractOnthebasisofsystematicanalysisofhydrologysedimentconditionsinXiYangDeepTroughseaareaaninversionmethodofwaterdepthhasbeenestablisheda

2、ccdingtoremotesensingimagedata.Erranalysishasbeencarriedoutonfittedresults.Therefedataofwaterdepthingreaterzonehavebeeninversedmadeupfadeficiencyofnaturaltopographydata.StabilityofXiYangDeepTroughhasbeenanalyzedaccdingto

3、theinverseddata.Themainconclusionsareasfollows.1)RemotesensingreflectanceisobtainedthroughapplyinggeometriccrectionradiationcrectionatmospherecrectiononLsatTM5images.Thencrelationanalysishasbeencarriedoutbetweenthereflec

4、tanceinsitumeasuredwaterdepthdatastatisticsregressionanalysishasbeenusedtostudyXiYangDeepTrougharea.ThefittedresultsshowthatimageofwaterbodybackgroundmaybeeliminatedtoacertainextentbyuseofcompositionofwavebsofTM4withTM1T

5、M2TM3crelationcoefficientsareimproved.Frommeanabsolutionerrsbetweenmodelpredictingwaterdepthinsitumeasuredinversionprecisionishigherinshoalwitherrlessthan2mwhereasindeepzonewitherrmethan3m.2)Sectiontemptstudyhasbeenenfce

6、dbyuseofinversionwaterdepthdata.Theresultsshowthatthismethodcanbeappliedtoanalyzeerosiondepositionvariationratetopredictbathymetriclinechangeinthefuture.Fromthewholechangeratesmostofresearchedzonehasthetrendsof5mbathymet

7、riclineclosingtowardshelineofobviouserosion.Researchedzonehasameanerosionrateof56.61myearmaximumerosionrateof136.21myearmaximumdepositionrateof22.43myear.3)AccdingtohistydataXiYangDeepTroughhasexistedflongtermisacteristi