6

Is there any ArcGIS 10 tool to merge several DEM into a single one?

0

Sure

Merging DEMs

http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//010300000068000000.htm

6

In ArcGIS 10, this can be done on-the-fly.

One of the new features being to create a Mosaic Dataset. There is also the Image Analysis window that will allow you to apply filters, do processing, analysis, also on-the-fly.

These two tools can save you tonnes of processing time and disk space, as data will not be duplicated.

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