holman Posted September 12, 2017 Report Share Posted September 12, 2017 (edited) Hello... I downloaded dem (5m) from land viewer (hxxps://lv.eosda.com), and do not fit with basemap, or other satellite images, not even reproyectando them ... :( Any suggestions ?? change xx to tt Edited September 12, 2017 by holman Quote Link to comment Share on other sites More sharing options...
Lurker Posted September 12, 2017 Report Share Posted September 12, 2017 please describe those DEM data you have download. and actually complete data would be consist of metadata , in there you can see the details of projection, datum and soon my suspect would be projection mismatch, Quote Link to comment Share on other sites More sharing options...
holman Posted September 12, 2017 Author Report Share Posted September 12, 2017 ok, thanks.... cell size (X,Y) 4.7773143, 4.77736143 16 bits spatial reference WGS_1984_Pseudo_Mercator Linear unit meter (1,0000) Angular unit degree (0,0174532925199433) Datum D_WGS_1984 False easting and false northing 0 Quote Link to comment Share on other sites More sharing options...
mauriciorjuela Posted September 12, 2017 Report Share Posted September 12, 2017 you can display the information in some gis software and load some free coverage as a way, if the information is correct, the spatial reference of the base information is the one that makes a difference. Quote Link to comment Share on other sites More sharing options...
Lurker Posted September 13, 2017 Report Share Posted September 13, 2017 could you give us screenshot, between the downloaded dem and the other data that mismatch, in layer please so we can see the difference Quote Link to comment Share on other sites More sharing options...
holman Posted September 14, 2017 Author Report Share Posted September 14, 2017 hello... tihis is the screenshot the river does not match thanks for the advice... Quote Link to comment Share on other sites More sharing options...
holman Posted September 14, 2017 Author Report Share Posted September 14, 2017 and this is with basemap - arcgis basemap arcgis Quote Link to comment Share on other sites More sharing options...
jorrarro Posted September 14, 2017 Report Share Posted September 14, 2017 Looks like the images are not georeferenced (no worldfile) or the projection does not match the worldfile. If you are using ArcGIS, this should help: http://desktop.arcgis.com/en/arcmap/10.3/manage-data/raster-and-images/fundamentals-for-georeferencing-a-raster-dataset.htm Quote Link to comment Share on other sites More sharing options...
Lurker Posted September 15, 2017 Report Share Posted September 15, 2017 I just saw your screenshoot on that case, you need to re-georeference and fix that Quote Link to comment Share on other sites More sharing options...
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