Vincent, digging into the GDAL 2.2.0 NEWS file, I see: """ ASRP driver: * fix georeferencing of polar arc zone images (#6560) """"
So if there's an issue it is mostly related to that change, rather than on the gdalwarp / GDALSuggestedWarpOutput side of things And that fix was backported to GDAL 2.1.1, which explains I saw same results in the latest state of GDAL 2.1, 2.2 and trunk branchs, if you are on GDAL 2.1.0 which has not this fix You should already see the difference of georeferencing between GDAL 2.1.0 and later version by doing a gdalinfo on the source ASRP file. Do you have strong reasons to believe that GDAL 2.1.0 was really georeferencing correctly your dataset ? The change done in https://trac.osgeo.org/gdal/ticket/6560 seems at first sight to be an improvement regarding the previous behaviour Even -- Spatialys - Geospatial professional services http://www.spatialys.com
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