topic rasterized dtm's. mosaic them or create terrain dataset? in Data Management Questions https://community.esri.com/t5/data-management-questions/rasterized-dtm-s-mosaic-them-or-create-terrain/m-p/225282#M12783 <HTML><HEAD></HEAD><BODY><SPAN>Hi there, </SPAN><BR /><BR /><SPAN>I'm a bit stuck. I am new to terrain datasets.&nbsp;&nbsp; I have hundreds of raster based Digital Terrain Models (DTMs) for Contra Costa County.&nbsp; We have planners and engineers who need the data for hydraulic modeling purposes.&nbsp; We also need the data for other uses, like getting z-values for other layers including benchmark locations.</SPAN><BR /><BR /><SPAN>If I have a terrain dataset of all these tiles, will that be enough for the modelers?&nbsp; In other words, will they be consistent across tiles?&nbsp; Do terrain datasets take into consideration each tile's extent and statistics?&nbsp; Further, is it even possible to create a terrain dataset from rasterized DTMs??</SPAN><BR /><BR /><SPAN>Or, is it better to mosaic them all together and then clip the mosaic to any smaller areas we may need in the future?&nbsp; </SPAN><BR /><BR /><SPAN>Whichever is the better choice, what is the workflow?</SPAN><BR /><BR /><SPAN>Attached is a screenshot of my data.&nbsp; I have ArcGIS 10.0 ArcInfo level with 3D Analyst extension.&nbsp; Windows XP.</SPAN></BODY></HTML> Fri, 06 Jul 2012 14:06:54 GMT ChristiNelson1 2012-07-06T14:06:54Z rasterized dtm's. mosaic them or create terrain dataset? https://community.esri.com/t5/data-management-questions/rasterized-dtm-s-mosaic-them-or-create-terrain/m-p/225282#M12783 <HTML><HEAD></HEAD><BODY><SPAN>Hi there, </SPAN><BR /><BR /><SPAN>I'm a bit stuck. I am new to terrain datasets.&nbsp;&nbsp; I have hundreds of raster based Digital Terrain Models (DTMs) for Contra Costa County.&nbsp; We have planners and engineers who need the data for hydraulic modeling purposes.&nbsp; We also need the data for other uses, like getting z-values for other layers including benchmark locations.</SPAN><BR /><BR /><SPAN>If I have a terrain dataset of all these tiles, will that be enough for the modelers?&nbsp; In other words, will they be consistent across tiles?&nbsp; Do terrain datasets take into consideration each tile's extent and statistics?&nbsp; Further, is it even possible to create a terrain dataset from rasterized DTMs??</SPAN><BR /><BR /><SPAN>Or, is it better to mosaic them all together and then clip the mosaic to any smaller areas we may need in the future?&nbsp; </SPAN><BR /><BR /><SPAN>Whichever is the better choice, what is the workflow?</SPAN><BR /><BR /><SPAN>Attached is a screenshot of my data.&nbsp; I have ArcGIS 10.0 ArcInfo level with 3D Analyst extension.&nbsp; Windows XP.</SPAN></BODY></HTML> Fri, 06 Jul 2012 14:06:54 GMT https://community.esri.com/t5/data-management-questions/rasterized-dtm-s-mosaic-them-or-create-terrain/m-p/225282#M12783 ChristiNelson1 2012-07-06T14:06:54Z