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Archaeology, folklore & myth of Britain's pre-christian sites & heritage: stone circles, holy wells, maypoles, tombs, archaic cosmologies and human consciousness. Everyone welcome - even Southerners!


    LiDAR - a must when looking for new sites

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    lowergate

    Join date : 2010-11-01
    Age : 68
    Location : CLITHEROE

    LiDAR - a must when looking for new sites

    Post  lowergate on Sat Mar 24, 2012 1:45 am

    The North of England is now being covered by LiDAR Survey and is proving to be the best tool available for identifing ancient sites.

    LiDAR

    Airborne lidar (light detection and ranging) measures the height of the ground surface and other features in large areas of landscape with a resolution and accuracy hitherto unavailable, except through labour-intensive field survey or photogrammetry. It provides, for the first time, highly detailed and accurate models of the land surface at metre and sub-metre resolution. This provides archaeologists with the capability to recognise and record otherwise hard to detect features.

    Lidar operates by using a pulsed laser beam which is scanned from side to side as the aircraft flies over the survey area, measuring between 20,000 to 100,000 points per second to build an accurate, high resolution model of the ground and the features upon it. For further details of the technology see the Unit for Landscape Modelling - Cambridge University (ULM) or the Environment Agency Geomatics Group.

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    Sunbright57

    Join date : 2011-02-10
    Age : 59
    Location : Nelson - the one in Lancashire sorry to say!

    Re: LiDAR - a must when looking for new sites

    Post  Sunbright57 on Sat Mar 24, 2012 2:51 pm

    Bit like geophys from the air, perhaps ?
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    QDanT

    Join date : 2011-05-29
    Location : Earby used to be in Yorkshire

    3d imaging camera

    Post  QDanT on Sun Apr 01, 2012 1:20 am

    http://www.patentlyapple.com/patently-apple/2012/03/apple-invents-a-killer-3d-imaging-camera-for-ios-devices.html
    cheers Danny


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    Re: LiDAR - a must when looking for new sites

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