I have a layer of impervious surfaces in the contiguous US, provided by the US Geological Survey as a WMS. The CRS is set to EPSG 4326, which is what the metadata says it should be. The entire layer is about 13 miles too far to the north. The east-west placement seems to be correct.

This is the service URL: https://smallscale.nationalmap.gov/arcgis/services/ImperviousSurface/MapServer/WMSServer

I'm new at using layers from WMS servers, so hopefully I've just made a basic mistake. enter image description here

I've tested it with several different layers that I know are correct. Here you can see what it looks like with a Google Hybrid basemap (obtained through QuickMapServices plugin).

enter image description here

On-the-fly reprojection is turned on. The screenshots are from QGIS 2.18, but I have the same issue in QGIS 3.0.

Why is this WMS layer mis-aligned?

UPDATE: I downloaded a different WMS layer from the USGS (USGS Imagery Topo Base Map - Below 18K Scale Dynamic) and it's correctly aligned. This proves that: A) I am capable of correctly loading a WMS layer; and B) not all data from the USGS has this issue. enter image description here enter image description here

  • can you share the service URL – nmtoken Mar 28 '18 at 11:39
  • edited the question to include the URL – csk Mar 28 '18 at 16:58

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.