I don’t have a clue why the conversion of a tif to an asc has that kind of behavior:
original tif metadata
Size is 466, 427
Coordinate System is:
PROJCS["ETRS89_UTM_zone_32N",
...
Origin = (-1181164.876702783396468,4539238.589259737171233)
Pixel Size = (6486.620049172968720,7717.850831012333401)
...
It’s hacky to convert it into a Ascii Grid because a VRT is needed
$ gdalwarp -srcnodata -1 -dstnodata -1 -of vrt grid_tif.tif junk.vrt
$ gdal_translate -of AAIGrid junk.vrt grid_asc.asc
The resulting Ascii Grid has that metadata
Size is 427, 466
Coordinate System is:
PROJCS["ETRS89_UTM_zone_32N",
...
Origin = (-1181164.876702783396468,7834760.894102003425360)
Pixel Size = (7075.195267921446430,-7075.195267921446430)
...
BTW: the original tif is created over gdal_grid of a point shapefile in UTM32N
gdal_grid -of GTiff -zfield value -l data_points -outsize 466 427 -a "average:nodata=-1" data_points.shp grid_tif.tif
Thanks for every hint!
tee
EDIT
I uploaded the tif file
https://dl.dropboxusercontent.com/u/47812265/grid_tif.tif