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Smoothing coarse resolution rasters, by BGS
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Smoothing coarse resolution rasters, by BGS

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  • 1. Talking With Maps 2010 Smoothing coarse resolution raster for integration with g vector data (applied to GeoSure) Diego Di D Di Diaz Doce
  • 2. Talking With Maps 2010
  • 3. Talking GeoSure With Maps 2010 Collapsible deposits Compressible ground Landslides Running Sand Shrink swell Soluble rocks
  • 4. Talking GeoSure With Maps 2010 Collapsible deposits Compressible ground Landslides Running Sand Shrink swell Soluble rocks
  • 5. Talking With Maps 2010
  • 6. Talking GeoSure With Maps 2010
  • 7. Initial Data Talking . . D With Maps 2010 sing Process Processing P Result . R
  • 8. Initial Data Talking . . D With Maps 2010 ( (coarse resolution) ) sing Process Processing P Result . R
  • 9. Talking With Maps 2010
  • 10. Initial Data Talking . . D With Maps 2010 Smoothing sing . Process Processing P (coarse resolution) Result . R
  • 11. Smoothing Talking With Maps 2010 3x3 raster t
  • 12. Talking With Maps 2010 Low Pass Filter 1 1 1 7 5 2 7 5 2 1 1 1 4 8 3 = 4 4.2 3 1 1 1 3 1 5 3 1 5 Value Vl =( (7 * 1) + (5 * 1) + (2 * 1) + (4 *1 ) + (8 * 1) + (3 * 1) + (3 * 1) + (1 * 1) + (5 * 1) ) / 9 = (7 + 5 + 2 + 1 + 4 + 8 + 3 + 3 + 1 + 5) / 9 = 38/ 9 = 4.2
  • 13. Talking With Maps 2010 Low Pass Filter
  • 14. Talking With Maps 25 m 2010 25m x 25m raster cross-section
  • 15. Talking With Maps 3m 2010 3m x 3m raster cross-section
  • 16. Talking With Maps 3m 2010 3m x 3m raster cross-section after Low Pass Filter
  • 17. Smoothing Talking With Maps 2010
  • 18. Initial Data Talking . . D With Maps 2010 Smoothing sing . Process Processing P (coarse resolution) Result . R
  • 19. Talking With Maps 2010
  • 20. Talking Example 1: Shrink swell dataset (GeoSure) With Maps 2010 Current version Smoothed version
  • 21. Talking Example 2: Shrink swell dataset (GeoSure) With Maps 2010 Current version Smoothed version
  • 22. Talking Example 3: Landslides dataset (GeoSure) With Maps 2010 Current version Smoothed version
  • 23. Talking Example 4: Landslides dataset (GeoSure) With Maps 2010 Current version Smoothed version
  • 24. Talking With Maps 2010