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A Virtual Stonehenge Landscape
8 months ago
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1. A Virtual Stonehenge Landscape
8 months ago
This short film shows the landscape around Stonehenge as recorded by LIDAR survey (airborne 3D scanning). Millions of measurements were taken across the landscape, and here they have been turned into a 'solid' computer model to show how well the archaeology is recorded by this method.
Prehistoric burial mounds (barrows), the great Cursus (a 2km Neolithic monument), the Bronze Age Avenue which links Stonehenge to the River Avon, and other henges such as Woodhenge and Durrington Walls are all clearly visible.
It is possibly the first time that this data has been shown in this way, at 1:1 with no reduction of data quality to produce a perspective animation.
To find out more technical information about the survey, visit the Stonehenge LIDAR section of the English Heritage website: english-heritage.org.uk/server/show/nav.00100200300400a001001
More info at the Wessex Archaeology Computing blog: computing.wessexarch.co.uk/2007/11/15/the-stonehenge-landscape-in-3d/
Prehistoric burial mounds (barrows), the great Cursus (a 2km Neolithic monument), the Bronze Age Avenue which links Stonehenge to the River Avon, and other henges such as Woodhenge and Durrington Walls are all clearly visible.
It is possibly the first time that this data has been shown in this way, at 1:1 with no reduction of data quality to produce a perspective animation.
To find out more technical information about the survey, visit the Stonehenge LIDAR section of the English Heritage website: english-heritage.org.uk/server/show/nav.00100200300400a001001
More info at the Wessex Archaeology Computing blog: computing.wessexarch.co.uk/2007/11/15/the-stonehenge-landscape-in-3d/
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Win
The Durrington Walls ring really shows up well. It is not at all apparent when passing the spot through at ground level unless of course you are an expert.
Thanks
Nigel
The spikes often indicate the presence of trees or tall vegetation. In this 'unfiltered' dataset, when the laser hits the canopy some readings are returned from the ground, some from branches and leaves. You end up with hundreds of millions of points in 3D space (known as a "point cloud").
When turned into a 'solid' computer model as you see here, areas where points in the air (the top of a tree) are very close to points on the ground (the laser scattering through branches and hitting the ground, for example) you get a zig-zag effect, causing the spikes.
I hope that explains at least some of your questions!