[Qgis-user] Support for (wrong) GEOCOVER projection for S hemisphere in qgis

[Agustin Lobo]

The global set of Landsat images on GEOCOVER
https://zulu.ssc.nasa.gov/mrsid/mrsid.pl
is on UTM/WGS projection
but with the Southern hemisphere tiles as UTM zones in the N with
negative coordinates. For example, a tile that should be at 18S is
actually 18N with negative coordinates
("Non-standard UTM definition: For the southern hemisphere, the GeoTiff files
   contain positive zone numbers with negative northing coordinates")
https://zulu.ssc.nasa.gov/mrsid/docs/GeoCover_circa_2000_Product_Description.pdf

As we have some vector layers on geographic coordinates WGS84 and a Geocover 
tile for 18S,
I've set the project as 18S, enabled CRS reprojection on the fly, and set
the raster CRS to 18N. Unfortunately, QGIS does not display the raster, even
selecting zoom to layer extent. (Using Mimas).

This is probably not a problem of QGIS, the Geocover projection is just wrong,
but would like to know if there could be a way to circumvent this problem to
be able to use GEOCOVER tiles of the S hemisphere within QGIS.
A way could be making a world file with the Georeferencer plugin, but perhaps
there is a more general way.

Thanks

Agus