Changes between Initial Version and Version 1 of FAQ/dsmdtm


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Timestamp:
May 7, 2015 12:11:49 PM (5 years ago)
Author:
dac
Comment:

Added page about supplying DTM

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  • FAQ/dsmdtm

    v1 v1  
     1= Do the ARSF generate a DTM/DSM from LiDAR data? =
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     3A common product for users to create from LiDAR data is a Digital Surface Model (DSM), which represents the elevation at the top of buildings / forest canopy and a Digital Terrain Model (DTM) which is the 'bare Earth' elevation (i.e., it doesn't include the height of buildings or vegetation).
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     5We supply a LiDAR DSM patched with a courser resolution elevation model (normally ASTER) for use in APL for processing hyperspectral data. However, we don't provide a DTM.
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     7There are a number of software packages capable of creating DTMs and DSMs from the point cloud files we deliver (see our [wiki:Links links] page) and we recommend users spend some time looking at which package / algorithm produces the best results for their application. Although we are unable to provide help with specific software packages we can provide general advice on creating a DTM/DSM if needed.
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