EnviroInsite training workshop - Creating three dimensional contours
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Transcript of EnviroInsite training workshop - Creating three dimensional contours
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3d Contouring
EnviroInsite Training Workshop
January 2012
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3d Contouring
3d Contouring
1. Select Data
2. Create 3d Grid
3. 3d Interpolation
4. Contour Shells
1
4
3
6
7 9
5.7 6.5
1.5 2.1 2.7
3.9 4.2 4.2
5.1
7.0 7.5 8.2
Similar to 2d, but no polyline bounds
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3d Contouring Hints
3d Contouring
• Can “slice” into contour shells by modifying grid extent
• Inverse distance seems to create smoother contours
• Z-Scale parameter in inverse distance reduces vertical spreading
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Volume / Mass Calculation
3d Contouring
• EI Evaluates volume within each contour interval
• Monte Carlo integration
• Mass = C x V x porosity
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Draped Image
3d Contouring
• Image draped to either:
Ground Surface defined at wells
Set of X,Y,Z points (DEM data)
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3d Contouring
Hands-on exercise