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obtain datum is the most popular phrase on the web.

observe datum 1142 results on the web	obtain datum 1238 results on the web More popular!
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The average of the higher low water height of each tidal day observed over a National Tidal Datum Epoch. Requests to make an objection shall specify the datum or data concerned. The positioning system and the SENC shall be based on the same geodetic datum. The vertical height above datum of the borehole collar. Process of mean sea level changing relative to some datum. Geographic scope in which the local depth datum is practically used. For the practical use of the datum it is necessary to have one or more well distinctive points with coordinates given in that datum. Water level determining the origin of depth measurements for the chart datum.	Geographic scope in which the local depth datum is practically used. Water level determining the origin of depth measurements for the chart datum. Datum for three Process of mean sea level changing relative to some datum. Requests to make an objection shall specify the datum or data concerned. For the practical use of the datum it is necessary to have one or more well distinctive points with coordinates given in that datum. The positioning system and the SENC shall be based on the same geodetic datum. The vertical height above datum of the borehole collar.

observe datum

1142 results on the web

obtain datum

1238 results on the web

More popular!

The average of the higher low water height of each tidal day observed over a National Tidal Datum Epoch.
Requests to make an objection shall specify the datum or data concerned.
The positioning system and the SENC shall be based on the same geodetic datum.
The vertical height above datum of the borehole collar.
Process of mean sea level changing relative to some datum.
Geographic scope in which the local depth datum is practically used.
For the practical use of the datum it is necessary to have one or more well distinctive points with coordinates given in that datum.
Water level determining the origin of depth measurements for the chart datum.

Geographic scope in which the local depth datum is practically used.
Water level determining the origin of depth measurements for the chart datum.
Datum for three
Process of mean sea level changing relative to some datum.
Requests to make an objection shall specify the datum or data concerned.
For the practical use of the datum it is necessary to have one or more well distinctive points with coordinates given in that datum.
The positioning system and the SENC shall be based on the same geodetic datum.
The vertical height above datum of the borehole collar.