Hi Stu- > Full Name: Stuart Wier > Email Address: address@hidden > Organization: UNAVCO > Package Version: 2.5 > Operating System: linux > Hardware: x86 > Description of problem: The USGS has global dem files at > http://edc.usgs.gov/products/elevation/gtopo30/README.html > > I put one online at > > http://geon.unavco.org/unavco/TOPO/E060N40.DEM > with its related "header file" from the same tar source at > http://geon.unavco.org/unavco/TOPO/E060N40.HDR > > The IDV opens the file but making a color display gets the error: > > "Reading DEM: http://geon.unavco.org/unavco/TOPO/E060N40.DEM > Data object > "/home/wier/.metapps/DefaultIdv/tmp/1214933527639_0_13146179897147292_27E060N40.DEM" > not compatible with "dem" data family" The only USGS DEM format that the IDV supports is the old ASCII DEM format: http://rockyweb.cr.usgs.gov/nmpstds/acrodocs/dem/2DEM0198.PDF > Any ideas? Does the header part need to be inside the dem file? Some of this data is being made available through a THREDDS Data Server here: http://coast-enviro.er.usgs.gov/thredds/bathy_catalog.html That would be your best option. Don Ticket Details =================== Ticket ID: AEF-303753 Department: Support IDV Priority: Normal Status: Open