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GPR and Integrating Geophysical Methods at Portus

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Presentation given at the Laurence Seminar in Geophysical Prospection at Cambridge, March 2010.

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GPR and Integrating Geophysical Methods at Portus

  1. 1. GPR and Integrating Geophysical Methods at Portus<br />Presented by: J. Ogden<br />Photo: Hembo Pagi<br />
  2. 2. The Imperial Port of Rome<br />
  3. 3. Motivations & Constraints<br />Photos: Hembo Pagi<br />
  4. 4. Motivations & Constraints<br /><ul><li> Scale
  5. 5. Extreme </li></ul>Topography<br /><ul><li> Voids & Collapse</li></ul>Photo: Martin Millet<br />
  6. 6. Ground-Penetrating Radar<br />May 2008<br />
  7. 7. Ground-Penetrating Radar<br />0-22cm<br />38-59cm<br />50-72cm<br />63-84cm<br />75-97cm<br />88-110cm<br />101-122cm<br />113-135cm<br />
  8. 8. GPR: Within the Excavation<br />September 2008<br />
  9. 9. Ground-Penetrating Radar<br />September 2009<br />
  10. 10. Ground-Penetrating Radar<br />Photos: Hembo Pagi & Martin Millet<br />September 2009<br />
  11. 11. Ground-Penetrating Radar<br />September 2009<br />
  12. 12. Geophysical Data Integration<br /><ul><li>Kvamme, K. L. 2006. ‘Integrating Multidimensional Geophysical Data.’ Archaeological Prospection, Vol.13 pp. 57-72
  13. 13. Piro S., Mauriello, P., and Cammarano F. 2000. ‘Quantitative integration of geophysical methods for archaeological prospection.’ Archaeological Prospection, Vol. 7 pp. 203-213
  14. 14. Neubauer, W. and Eder-Hinterleitner A. 1997. ‘Resistivity and magnetics of the Roman town Carnuntum, Austria: and example of combined interpretation of prospection data.’ Archaeological Prospection, Vol. 4 pp. 179-189</li></li></ul><li>Geophysical Data Integration<br />‘AND’<br />
  15. 15. Geophysical Data Integration<br />‘OR’<br />
  16. 16. 2D Graphical Integration<br />Red = Magnetometry<br />Green = Resistivity<br />Blue = GPR<br />
  17. 17. Graphical Integration<br />
  18. 18. Geophysical Data Integration<br />Cluster Analysis<br />MIN function<br />Photo: Martin Millet<br />
  19. 19. Questions<br />How do we apply data fusion techniques to the <br />3rd dimension?<br />How do we come to terms with GPR on complex sites?<br />Issues of:<br /><ul><li> Scale & Resolution
  20. 20. Topographic and Tilt Correction
  21. 21. Accessibility</li></ul>Photo: Hembo Pagi<br />

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