基于地圖代數(shù)的地貌因子的提取.pdf

1、分類號(hào)：P2810710—20060113壤爹太淳碩士學(xué)位論文基于地圖代數(shù)的地貌因子的提取史奮偉導(dǎo)師姓名職稱羅廣祥副教授申請(qǐng)學(xué)位級(jí)別碩士學(xué)科專業(yè)名稱地圖學(xué)與地理信息系統(tǒng)論文提交日期7門7年牛月力日論文答辯日期學(xué)位授予單位長(zhǎng)安大學(xué)答辯委員會(huì)主席盔2墟絲學(xué)位論文評(píng)閱人鑫旌絲絲』煎縫AbstractInthestudyofthereliefThegeomorphologicfactorsplaysallimportantrolebecause

2、itreflectsthenaturalstructureofthegeomorphologyofinternalrelatiosButthegeomorphologicfactorsisprecesseddateratherthanoriginaldataIntheoryDEMcontainallthegeomorphologicinformationbutinfactsincetheerrorarousedbytheDEMaccur

3、acyand咖ture、translatedalgorithmandSOon，ThegeomorphologicfactorsoftheDEMisnotideaOvrertheyearsithasbeenoneofthebasicissuesswhichconstraintingtheintegratedgeomorphologyInthispaperbasedontheDEMdatasourcesofareasofLoessPlate

4、auwhichinthenorthofShaanxiProvince，weusedthemapalgebratheoryandmethodsrelated，researchandprobeintoanewwayofextractingthegeomorphologicfactorsDuetothehighaccurationalDEMisadatabasisoftheextractinggeomorphologicfactors，wef

5、irstlyintroducesthemethodsofestablishmentoftheDEMandtheinterpolatedalgorithmsincommonuse，whoseerrorandprecisionareanalysedinthelateronthisbasis，BaseonthemapalgebrawemainlystudyedtheDEMgenerationmethods，finallywebroughtfo

6、rwardamethodofestablishingMADEMwhichisbasedonthemapalgebraThenwemainlyprobedintotheapplicationvalueofusingmapalgebratoextractgeomorphologicfactors，usingtheinstancestoprovedthesuperiorityandbroadprospectofthenewmethodThea

7、lgorithmswediscussedallhadbeencarriedoutonArcGIS91Atlast，wediscussedtheprecisionandemsoftheextractedgeomorphologicfactorsAswhatthepaperitselfstudyingisoneofthefollowupresearchesofthealgebramap，theresearchresultshowthat：t

8、hemethodofusingalgebramaptoextractthegeomorphologicfactorsdoeshavealotofadvantages，whichisworthbeingresearchedmorethoroughlyandwidelyWealsoCandrawn：currentlytheprecisionofextractionofthegeomorphologicfactorsisreallyfarfr