Geoid Height


If you can't explain it simply, you don't understand it well enough. Albert Einstein

8 Responses

  1. Rempu Rayat says:

    Hi, i just bought extension software for geoid height. Where do can see the height in map? Thanks.

    • osedok says:

      Hi there, go to Survey Settings and enable “Show speed & altitude”. If you have it already enabled the altitude displayed will be automatically adjusted to include geoid differences.
      As long as the ‘Geoid Height for GPS’ is switched on in Survey settings – all altitudes will be automatically recorded with geoid correction. You can compare your readings for the option switched on and off to see the difference.

  2. Kuloba Aron says:

    Hi provide me with Calculations about the geoid

  3. Daniel Flint says:

    How accurate is the measurement?

    • osedok says:

      Hi Daniel, high measurement accuracy is depending from number of factors – most important are the GPS device itself which I am not able to comment on, the second one is the Earth Gravitational Model itself. For the purposes of MapIt I am using the one published here by NASA, but I am not able to provide more information in terms of accuracy in your area. You may get directly to the Earth Gravitational Model publishers to get some more information.

  4. Bruce Hedquist says:

    I’m not sure which geoid model I’m using. I tried importing the 2.5′ x 2.5′ one. I downloaded it off the net and put it in a folder as instructed. But the folder may not be under the program.

    • osedok says:

      Hi Bruce, have you renamed the file to EGM2008_M25.geoid after downloading and copied it to MapIt->Resources folder?

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