Interpolating data from multiple elevation sources first requires blending the rasters involved. To do so follow these steps:
- From the Toolbox, select Blend Raster to Edges to open the Blend Raster to Edges dialog.
- Set the Primary raster and the Secondary raster options with the rasters that are to be blended.
- Specify the width over which the primary raster's active edges will be blended with the secondary raster.
- Specify the name of the Output raster. This will be a separate raster created from the primary and secondary raster.
- Run the Blend Raster to Edges tool.
- Examine the newly created raster.
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