3. Integrated analysis of spatial and attribute data - RTC, Regional ...

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It is one of the most important elements of a GISIs it ‘spatial’ or ‘geographic’?Spatial Data: Data with an associated spatial location (with respect to agiven reference frame)‣medical images are referenced to the human body‣engineering drawings are referenced to a mechanical object‣architectural drawings are referenced to a buildingGeographic data/geo-spatial data: data whose underlying referenceframe is the earth surface.NOTE: Spatia data and Geo-spatial data often used interchangeably8
The Nature of Geographic DataGeographic data are commonly characterized as having four majorcomponents Geographic Position: geographic data are recorded in a coordinatesystem Attributes: characteristics of geographic features Relationships: the relationships between the geographic features Time: geographic data are referenced to a point in time or a period oftime9
Page 1 and 2: International Training Course on
Page 3 and 4: What is GIS?A widely accepted defin
Page 5: What is GIS?‣Where do certain con
Page 10 and 11: Geographic PositionThe Nature of Ge
Page 12 and 13: The Nature of Geographic DataSpatia
Page 14 and 15: Organizing Geographic Data ForAnaly
Page 16 and 17: The Components of GIS‣All of thes
Page 18 and 19: The Components of GISMethods includ
Page 20 and 21: The Components of GISSoftwareAll pa
Page 22 and 23: Data InputData QualityErrors in the
Page 24 and 25: Positional AccuracyData Qualityexpe
Page 26 and 27: SPATIALDATAMODELS26
Page 28 and 29: GIS Spatial Data ModelsRepresentati
Page 30 and 31: Raster Data ModelIn the raster data
Page 32 and 33: Raster Data ModelRaster file can be
Page 34 and 35: 1. Traditional Raster Encoding34
Page 36 and 37: 3. Quadtree raster encoding‣provi
Page 38 and 39: Vector Data ModelIn the vector data
Page 40 and 41: Vector Data Model‣The data model
Page 42 and 43: Topological ModelTopological relati
Page 44 and 45: Topological ModelOther names for No
Page 46 and 47: Some Basic Topological Relationship
Page 48 and 49: Triangulated Irregular Network (TIN
Page 50 and 51: GIS ANALYSIS FUNCTIONS50
Page 52 and 53: A Classification of GIS Analysis Fu
Page 54 and 55: 1. Maintenance and analysis of the
Page 56 and 57: Edge-matching :Maintenance and anal
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Maintenance and analysis of the spa
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Attribute query functions2. Mainten
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3. Integrated analysis of spatial a
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Logical Operations on Raster: LOGIC
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Overlay Analysis‣One of the major
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Vector overlayThe process of subdiv
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Comparison of Vector and Raster Ove
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Connectivity (Network) Operations:
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Connectivity (Network) Operations:P
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Connectivity (Network) Operations:P
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Network FunctionsConnectivity (Netw
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Connectivity (Network) Operations:N
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The principles of geostatistical an
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Geostatistical Analyst‣A major ch
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Calculate the empirical semivariogr
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Modeling a semivariogram‣spatial
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Calculate the empirical semivariogr
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Binning the empirical semivariogram
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Calculating the empirical semivario
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Fitting a model‣Now you can plot
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Different types of semivariogram mo
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Creation of g vector for the unmeas
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Make a prediction‣the weights dec
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‣The kriging standard error value
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THANK YOU116
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