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Lidar and landscape archaeology

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Collecting and using lidar data in archaeology.

Collecting and using lidar data in archaeology.

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  • 1. Lidar and Landscape Archaeology Keith Challis Institute of Archaeology & Antiquity University of Birmingham U B
  • 2. Lidar and Landscape Archaeology
    • The technical bit
    • Ways of looking for things
    • What can you do with it?
    • The problem of too much information
    Keith Challis University of Birmingham
  • 3.
    • The technical bit
  • 4. Lidar and Landscape Archaeology Keith Challis University of Birmingham Vertical error c. 0.2m absolute, 0.02m relative Spatial resolution typically 0.5-2m Lidar (Light detection and ranging) Lidar provides high accuracy, high spatial resolution elevation data from airborne survey What is lidar / (LiDAR)?
  • 5. Lidar and Landscape Archaeology Keith Challis University of Birmingham How lidar works DGPS INS Control and Data Logging Receiver Pulse Laser DGPS INS Control and Data Logging DGPS INS Pulse Laser Control and Data Logging DGPS INS Pulse Laser Control and Data Logging DGPS INS
  • 6. Lidar and Landscape Archaeology Keith Challis University of Birmingham OPTECH ALTM 2033 A typical lidar system
  • 7. Lidar and Landscape Archaeology Keith Challis University of Birmingham Full waveform return Discrete return Recording the laser pulse
  • 8. Lidar and Landscape Archaeology Keith Challis University of Birmingham First return Last return First and last pulse returns
  • 9. Lidar and Landscape Archaeology Keith Challis University of Birmingham A Digital Surface Model (DSM)
  • 10. Lidar and Landscape Archaeology Keith Challis University of Birmingham Lidar backscatter intensity
  • 11.
    • Visualisation
    • Ways of looking for things
  • 12. Lidar and Landscape Archaeology Keith Challis University of Birmingham Elevation Shaded (heightmap)
  • 13. Lidar and Landscape Archaeology Keith Challis University of Birmingham Hillshade
  • 14. Lidar and Landscape Archaeology Keith Challis University of Birmingham Principal Component Analysis
  • 15. Lidar and Landscape Archaeology
    • slope
    Keith Challis University of Birmingham Slope severity
  • 16. Lidar and Landscape Archaeology Keith Challis University of Birmingham Skyview and solar radiation models
  • 17. Lidar and Landscape Archaeology
    • Local relief
    Keith Challis University of Birmingham Local relief
  • 18.
    • What can you do with it?
  • 19. Lidar and Landscape Archaeology Keith Challis University of Birmingham Archaeology!
  • 20. Lidar and Landscape Archaeology Keith Challis University of Birmingham Geoarchaeology
  • 21. Lidar and Landscape Archaeology Keith Challis University of Birmingham Site Monitoring
  • 22. Lidar and Landscape Archaeology Keith Challis University of Birmingham Erosion Mapping
  • 23. Lidar and Landscape Archaeology Keith Challis University of Birmingham The Burial Environment Normalised Intensity
  • 24.
    • The problem of too much information
  • 25. Lidar and Landscape Archaeology
    • Big, Big Data
    • The volume of data collected to record monuments and landscapes may now be vast, and levels of accuracy and precision unprecedented
    Keith Challis University of Birmingham
  • 26. Lidar and Landscape Archaeology
    • Conventional visualisation of TLS/ALS and survey data, has tended to remain rooted in traditional approaches, albeit facilitated by new digital media
    Keith Challis University of Birmingham
  • 27. Lidar and Landscape Archaeology
    • Modern digital survey can engage with others areas of archaeological debate such as discussions of sense of place, meaning and interpretation in landscape, as embodied by for example the phenomenological approach to landscape
    Keith Challis University of Birmingham
  • 28. Keith Challis University of Birmingham Lidar and Landscape Archaeology
  • 29. Keith Challis University of Birmingham
  • 30. Keith Challis University of Birmingham
  • 31. Lidar and Landscape Archaeology
    • Tilley and Hoskins
    Keith Challis University of Birmingham
    • "The real work (in the study of landscape) is accomplished by the men and women with muddy boots..." W.G. Hoskins.
    • “ To understand a landscape truly it must be felt, but to convey some of this feeling to others it has to be talked about, recounted, or written and depicted." Chris Tilley
  • 32. Lidar and Landscape Archaeology
    • Thank you
    • Keith Challis
    • Institute of
    • Archaeology & Antiquity
    • University of Birmingham
    • Edgbaston, Birmingham, B15 2TT
    • [email_address]
    • Secondsiteresearch.blogspot.com
    Keith Challis University of Birmingham Keith Challis University of Birmingham