Changes between Version 3 and Version 4 of DataFormat/LidarDelivery


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Timestamp:
Feb 24, 2012 10:54:08 AM (8 years ago)
Author:
mark1
Comment:

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  • DataFormat/LidarDelivery

    v3 v4  
    2020=== Digital Elevation Model === #DEM
    2121
    22 The format of the delivered Digital Elevation Model (DEM) is band Sequential (BSQ) ENVI format binary data. The projection is in WGS-84 latitude and longitude, with heights relative to the WGS-84 spheroid. There is an accompanying ASCII text header file containing the required information to read the binary data. In most cases, the LiDAR data will have been 'patched' with ASTER data. This will extend the coverage of the DEM which is often required for processing the hyperspectral data.
     22The format of the delivered Digital Elevation Model (DEM) is band Sequential (BSQ) ENVI format binary data. There is an accompanying ASCII text header file containing the required information to read the binary data. In most cases, the LiDAR data will have been 'patched' with ASTER data. This will extend the coverage of the DEM which is often required for processing the hyperspectral data. There are usually 2 DEMs delivered:
     23 
     24 * One projected in WGS-84 Latitude / Longitude
     25 * One projected in the same projection as the delivered LiDAR data (Ordnance Survey OSTN02 if a UK flight or UTM if non-UK).
     26
     27The DEM projected in WGS-84 latitude and longitude, with heights relative to the WGS-84 spheroid, is suitable for use with the APL hyperspectral processing software.
     28
    2329
    2430=== ASCII LiDAR Point Clouds === #ASCIILIDARFILES