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Vertical datum conversion

amaramar Global Mapper UserPosts: 1
edited February 2012 in Elevation Data
Hello -
Is there a way in GM to convert Orthometric heights (GEOID09) to ellipsoid heights (NAD83) for a DEM in GEOTIFF format?
Thanks,
-Amar

Comments

  • global_mapperglobal_mapper Administrator Posts: 17,238
    edited February 2012
    Amar,

    There is not currently support for geoid conversions in Global Mapper, but if the offset between the geoids is consistent over the area you are working with you can simply offset the elevations in your layer by some fixed value on the Alter Elevations tab of the Options dialog for the layer.

    Let me know if I can be of further assistance.

    Thanks,

    Mike
    Global Mapper Guru
    gmsupport@bluemarblegeo.com
    http://www.globalmapper.com
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