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1.
1 IntroductionTheWorkingGrouponGeodesyandGeographicInformation (WG_GGI)oftheScientificCommit teeonAntarcticResearch (SCAR )launchedtheprojectKingGeorgeIslandGIS (KGIS) .Inordertoprovideanoperationalsystem ,adatamodel,dataaccuracystandardsandadatainventoryhav…  相似文献   

2.
1 TheconceptoftheintegrationofRSwithGISTheintegrationofremotesensing (RS)withgeo graphicalinformationsystem (GIS)isahotspotingeographicalinformationscience .TheconceptoftheintegrationofRSwithGIS ,intheviewofProf.LiDeren ,isthatRSisthewaytoobtaintheinforma ti…  相似文献   

3.
GIS-ILA:THE GIS FOR ITALIAN LOGISTICS IN ANTARCTICA   总被引:2,自引:0,他引:2  
1 IntroductionTheGISfortheItalianLogisticsinAntarctica(GIS_ILA)collectsthedatainvolvedwiththeItal ianscientificexpeditionsinAntarctica ,obtainedfromtheyearlyExpeditionReports.Allthematicinformationavailableuptonowhavebeeninsertedintothedatabase ,fromthef…  相似文献   

4.
APPROXIMATE REPRESENTATION OF THE p-NORM DISTRIBUTION   总被引:1,自引:0,他引:1  
1 IntroductionInsurveyingdataprocessing ,itisoftensupposedthatobservationalerrorsdistributenormally .Ifob servationscomefromthenormaldistributionalclass ,themethodofleastsquarescangivethemini_ProjectsupportedbytheSustentationPlanforOutstandingTeachersofA…  相似文献   

5.
Suite 51 0JardineHouse ,1ConnaughtPlace ,Central,HongKongTel:( 852 ) 2 52 63 679Fax :( 852 ) 2 8684 61 2http:/ /www .hkis .org .hkTheHongKongInstituteofSurveyorsGeneralCouncil2 0 0 0 / 2 0 0 1OfficeBearersPresidentMrStephenLIULingHongSr.Vice_PresidentMrCHANHakJr.Vice_PresidentMrKennethCHAN…  相似文献   

6.
1 IntroductionSince 1 96 0’s ,especiallyduringthelasttwodecades,manytidalistshavestudiedonthetidalwavesystemsoftheSouthChinaSea .YeAnle ,etal.(1 983 ) ,ShenYujiang ,etal.(1 985 ) ,FangGuohong,etal.(1 994) ,andCaoDeming ,etal.(1 997)simulatedthetidalfieldinthisareabasedonthenumeri…  相似文献   

7.
Withrapidscientificdevelopmentandfurtherexplorationtowardsthenature ,thehumankindhopestoservethemselvesbymasteringthenaturallaw .CountriesallovertheworldsetmuchvalueonthestudyofAntarcticaandhaveobtainedplentyandsubstantialachievements.Soastostrengthenm…  相似文献   

8.
1 IntroductionAgeographicinformationsystem (GIS)isusedtocollect,display ,analyseandmanagegeographicallyrelatedinformation .Itisanimportanttooltointe gratespatialdataacquiredatdifferentscales,timesandformats.GISisameansof1 )exchanginginformationbetweencountr…  相似文献   

9.
1 IntroductionKingGeorgeIsland’s (KGI)ecosystemshavebeensubjectedtovarioustypesofexploitationandobjectofseveralscientificexpeditions,sinceitwasdiscoveredjustafterthefirstsightingofAntarctilandbyWilliamSmithin1 81 9.KGIwasnamedaf tertheBritishkingofthattime …  相似文献   

10.
1 IntroductionWiththerapiddevelopmentofaerialandspaceremotesensingtechnique,thedigitalcamerahasbeenexplored ,andmappingexperimentswiththiskindofdigitalimagesarebeingprocessedastheregularmodeofareophotogrammetry .Ontheotherhand ,thetechniqueofintegrationo…  相似文献   

11.
1 IntroductionThefastFouriertransform (FFT)techniqueisaverypowerfultoolfortheefficientevaluationofgravityfieldconvolutionintegrals.Thankstothegoodcomputationefficiency ,theFFTtechnique ,inthemid_1 980s ,begantofindwidespreaduseingeoiddetermination ,whencompar…  相似文献   

12.
1 IntroductionThecombinedGPS/GLONASSoffersmanyad vantagescomparedwithGPS_onlyuseforposition ingapplicationsespeciallyinareaswherethenum berofvisiblesatellitesislimited .TheinclusionoftheGLONASSsignalscanincreasetheaccuracyofpositioningaswellastheavailab…  相似文献   

13.
A CADASTRAL SPATIAL DATA STORAGE STRUCTURE BASED ON RELATIONAL DATABASE   总被引:3,自引:0,他引:3  
1 IntroductionCadastralmapsandcadastralattributesarethecorecontentsofcadastralinformationmanage ment .SomeofthedevelopedcadastralmanagementsystemsemployGISsoftware (i.e .Mapinfo ,Ar cvieworMaptitudeetc .)tomanagecadastralmapsanduserelationaldatabase (e .g .SQL…  相似文献   

14.
Development of a hybrid model for three-dimensional GIS   总被引:10,自引:0,他引:10  
1 IntroductionThree_dimensional (3_D)GeographicalInforma tionSystems (GISs)areveryimportantfortheap plicationfieldssuchasurbanplanningandmanage ment ,geologicalsubsurfacemodeling ,miningandoilexploration .Ina 3_DGIS ,anobjectcanbede scribedinhorizontal (x ,y)andv…  相似文献   

15.
1 IntroductionSpatialdataisthebasisoftheGeographicInfor mationSystem (GIS)andnon_spatialdataistheintensionandthedescriptionofgeographiccell.Thequalityofdataaffectsgreatlyontheresultofapplicationanalysisandtherealizationoftheprac ticaltargetinGIS .Thequal…  相似文献   

16.
1 IntroductionSpatialrelationsqueryisoneofbasicfunctionsinGIS’sapplication .MostofcurrentcommercialGISscanonlyqueryspatialrelationsforspatialob jectswithoutanyerrororuncertainty ,forexample ,tousecomputation geometryalgorithmtodeter minewhetherapointfalls…  相似文献   

17.
1 IntroductionInourcountry ,thesurveyingworkonindustrialobjectshave graduallyincreased .Thoseindustrialobjectsincluderailwayandhighwaytunnels,vari ousoilandgascans ,variousaircraft,shellofcars,largemilitaryantennausedforscoutingstealthplane ,ship ,internalst…  相似文献   

18.
1 DataacquisitionandmanagementFrom 1 996to 2 0 0 0 ,theStateBureauofSurvey ingandMapping (SBSM )ofChinafocusedontwomainaspects :establishingChina’snationalspatialdatainfrastructure (CNSDI)and providingbasicinformationproductionforhazardpreventionandreduction .Thepr…  相似文献   

19.
THE SPECIFIC CHARACTER OF LIMIT ERRORS IN CLOSE RANGE PHOTOGRAMMETRY   总被引:1,自引:0,他引:1  
1 IntroductionTheapplicationofclose_rangephotogrammetryistodeterminetheformandsize ,ratherthantheab soluteposition ,ofanobjectinthefieldofarchitec ture ,industryandbiomedicine .Anyintegraltrans lationandrotationcausedbydifferentoperationprocessinclose_rang…  相似文献   

20.
t-GIS and environmental dynamic models   总被引:2,自引:0,他引:2  
1 IntroductionTodayitseemsthatpeople’sinterestandatten tiontoGISmainlyfocusontheaspectofspatialat tributesofgeographicinformation ,notsufficientlyontimefactor .Thisisanerroneoustendency ,anditwillbedisadvantageoustothebalanceddevelop mentofGISwhenexplaini…  相似文献   

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