topic DEM Mosaic Problem in Geoprocessing Questions https://community.esri.com/t5/geoprocessing-questions/dem-mosaic-problem/m-p/629958#M21047 <HTML><HEAD></HEAD><BODY><SPAN>Hello,</SPAN><BR /><BR /><SPAN>I am trying to mosaic multiple DEM grids into one DEM mosaic. I am using a file geodatabase created in ArcCatalog 10, and creating a new Mosaic Dataset within it. Then I am adding the rasters, which are DEM data from the United States at 10 meters. I included pyramiding and calculating statistics from the advanced settings (though it never seems to actually successfully calculate statistics). The rasters are successfully added, but when I view the mosaic in the preview tab of ArcCatalog or in ArcMap only the Boundary and Footprints are visible. The Images are not showing up. I have tried different settings and used some DEM files from other parts of the country, but they all yield the same results. I eventually realized that the DEM's were were the source of the problem.&nbsp; The vendor who made the images needed to crop the images, but instead essentially made all values beyond certain parameters null.&nbsp; So the footprint doesn't match the size of the image and it is throwing everything thing off.&nbsp; I'm wondering if there is any way to deal with this discrepancy within ArcGIS.</SPAN><BR /><BR /><SPAN>Thanks in advance for any suggestions.</SPAN><BR /><BR /><SPAN>Brian</SPAN></BODY></HTML> Wed, 28 Jul 2010 17:10:46 GMT BrianKeffer 2010-07-28T17:10:46Z DEM Mosaic Problem https://community.esri.com/t5/geoprocessing-questions/dem-mosaic-problem/m-p/629958#M21047 <HTML><HEAD></HEAD><BODY><SPAN>Hello,</SPAN><BR /><BR /><SPAN>I am trying to mosaic multiple DEM grids into one DEM mosaic. I am using a file geodatabase created in ArcCatalog 10, and creating a new Mosaic Dataset within it. Then I am adding the rasters, which are DEM data from the United States at 10 meters. I included pyramiding and calculating statistics from the advanced settings (though it never seems to actually successfully calculate statistics). The rasters are successfully added, but when I view the mosaic in the preview tab of ArcCatalog or in ArcMap only the Boundary and Footprints are visible. The Images are not showing up. I have tried different settings and used some DEM files from other parts of the country, but they all yield the same results. I eventually realized that the DEM's were were the source of the problem.&nbsp; The vendor who made the images needed to crop the images, but instead essentially made all values beyond certain parameters null.&nbsp; So the footprint doesn't match the size of the image and it is throwing everything thing off.&nbsp; I'm wondering if there is any way to deal with this discrepancy within ArcGIS.</SPAN><BR /><BR /><SPAN>Thanks in advance for any suggestions.</SPAN><BR /><BR /><SPAN>Brian</SPAN></BODY></HTML> Wed, 28 Jul 2010 17:10:46 GMT https://community.esri.com/t5/geoprocessing-questions/dem-mosaic-problem/m-p/629958#M21047 BrianKeffer 2010-07-28T17:10:46Z