Lidar and landscape archaeology

Lidar and Landscape Archaeology Keith Challis Institute of Archaeology & Antiquity University of Birmingham U B

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

The technical bit

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)?

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

Lidar and Landscape Archaeology Keith Challis University of Birmingham OPTECH ALTM 2033 A typical lidar system

Lidar and Landscape Archaeology Keith Challis University of Birmingham Full waveform return Discrete return Recording the laser pulse

Lidar and Landscape Archaeology Keith Challis University of Birmingham First return Last return First and last pulse returns

Lidar and Landscape Archaeology Keith Challis University of Birmingham A Digital Surface Model (DSM)

Lidar and Landscape Archaeology Keith Challis University of Birmingham Lidar backscatter intensity

Visualisation
Ways of looking for things

Lidar and Landscape Archaeology Keith Challis University of Birmingham Elevation Shaded (heightmap)

Lidar and Landscape Archaeology Keith Challis University of Birmingham Hillshade

Lidar and Landscape Archaeology Keith Challis University of Birmingham Principal Component Analysis

slope
Keith Challis University of Birmingham Slope severity

Lidar and Landscape Archaeology Keith Challis University of Birmingham Skyview and solar radiation models

Local relief
Keith Challis University of Birmingham Local relief

What can you do with it?

Lidar and Landscape Archaeology Keith Challis University of Birmingham Archaeology!

Lidar and Landscape Archaeology Keith Challis University of Birmingham Geoarchaeology

Lidar and Landscape Archaeology Keith Challis University of Birmingham Site Monitoring

Lidar and Landscape Archaeology Keith Challis University of Birmingham Erosion Mapping

Lidar and Landscape Archaeology Keith Challis University of Birmingham The Burial Environment Normalised Intensity

The problem of too much information

Big, Big Data
The volume of data collected to record monuments and landscapes may now be vast, and levels of accuracy and precision unprecedented

Conventional visualisation of TLS/ALS and survey data, has tended to remain rooted in traditional approaches, albeit facilitated by new digital media

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 Lidar and Landscape Archaeology

Tilley and Hoskins
"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

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

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Lidar and landscape archaeology

by Keith Challis on Nov 12, 2011

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Lidar and landscape archaeology — Presentation Transcript