You can convert the Z values of a grid file from one linear unit to another (e.g. from meters to feet) using Surfer's Grid Math function.
To do this:
To do this:
- Click Grids | Calculate | Math.
- In the Grid Math dialog, click the Add Grids... button.
- Select the DEM or grid file you wish to convert and click Open. This grid is entered as input grid file (A).
- Enter the function with the conversion factor. For converting feet to meters, enter A/3.28083. For converting meters to feet, enter A*3.28083.
- Click the Change Filename folder icon to change the file name or file location of the new grid.
- Click OK and the new grid file is created.
Updated November, 2021
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