topic Re: How to deal with Missing DEM data (BIG chunks, picture attached) in ArcGIS Spatial Analyst Questions https://community.esri.com/t5/arcgis-spatial-analyst-questions/how-to-deal-with-missing-dem-data-big-chunks/m-p/733071#M10671 <HTML><HEAD></HEAD><BODY><SPAN>contact the producing agency and see if the data exists but just hasn't been posted.&nbsp; Secondly, you may have to consider limiting your study area if the whole area is a "nice" versus a "need".&nbsp; You will not be able to produce data for the missing areas since they are quite large.</SPAN></BODY></HTML> Tue, 15 Feb 2011 20:51:24 GMT DanPatterson_Retired 2011-02-15T20:51:24Z How to deal with Missing DEM data (BIG chunks, picture attached) https://community.esri.com/t5/arcgis-spatial-analyst-questions/how-to-deal-with-missing-dem-data-big-chunks/m-p/733070#M10670 <HTML><HEAD></HEAD><BODY><SPAN>Hello all,</SPAN><BR /><BR /><SPAN>I am working on an undergraduate Ethanol plant siting project, the study area is Chouteau County, in Montana.</SPAN><BR /><BR /><SPAN>One of my layers is a DEM, which will be transformed into a Slope grid. This layer is a mosaic of 107 smaller DEMs, the problem is that 2 parts are missing, see attached picture.</SPAN><BR /><BR /><SPAN>How can I deal with this problem ?</SPAN><BR /><BR /><SPAN>Thanks,</SPAN><BR /><SPAN>Gihad.</SPAN><BR /><BR /><BR /><SPAN>(ps: when this project is concluded it will be posted here: </SPAN><A href="http://www.uoguelph.ca/geography/research/geog4480_w2011/">http://www.uoguelph.ca/geography/research/geog4480_w2011/</A><SPAN> )</SPAN></BODY></HTML> Tue, 15 Feb 2011 12:51:11 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/how-to-deal-with-missing-dem-data-big-chunks/m-p/733070#M10670 GihadMurad 2011-02-15T12:51:11Z Re: How to deal with Missing DEM data (BIG chunks, picture attached) https://community.esri.com/t5/arcgis-spatial-analyst-questions/how-to-deal-with-missing-dem-data-big-chunks/m-p/733071#M10671 <HTML><HEAD></HEAD><BODY><SPAN>contact the producing agency and see if the data exists but just hasn't been posted.&nbsp; Secondly, you may have to consider limiting your study area if the whole area is a "nice" versus a "need".&nbsp; You will not be able to produce data for the missing areas since they are quite large.</SPAN></BODY></HTML> Tue, 15 Feb 2011 20:51:24 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/how-to-deal-with-missing-dem-data-big-chunks/m-p/733071#M10671 DanPatterson_Retired 2011-02-15T20:51:24Z Re: How to deal with Missing DEM data (BIG chunks, picture attached) https://community.esri.com/t5/arcgis-spatial-analyst-questions/how-to-deal-with-missing-dem-data-big-chunks/m-p/733072#M10672 <HTML><HEAD></HEAD><BODY><SPAN>Is it just the USGS stuff? In the US? The SRTM derived stuff is free and easy to work with for US data. Somewhat less so for other areas, but..... Just go identify what the best/most suitable data they have for missing areas and download it.... If it is around your area in Canada they might have "fixed" versions</SPAN></BODY></HTML> Tue, 15 Feb 2011 21:05:53 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/how-to-deal-with-missing-dem-data-big-chunks/m-p/733072#M10672 MichaelStead 2011-02-15T21:05:53Z