[GRASS-user] Unable to open the Corine land cover map using GrassGIS 7
Veronica Andreo
veroandreo at gmail.com
Tue Oct 24 07:53:42 PDT 2017
Hi,
I'm facing this same problem...
I have my EPSG:3035 location and when using r.import with -o flag to
override projection check and import corine land cover, I get:
GRASS 7.3.svn (eu_laea):~> r.import -o input=g250_clc06_V18_5.tif
output=clc06_V18_5_250m resample=nearest extent=region resolution=value
resolution_value=250 title="Corine Land Cover 2006 - 250m - V18.5"
ERROR: Unable to convert input map projection to GRASS format; cannot
create new location.
ERROR: Unable to read GDAL dataset <g250_clc06_V18_5.tif>
while -o flag is supposed to override the check and import. This used to
work before. Am I missunderstanding something here?
thanks a lot in advance,
Vero
2017-10-09 22:07 GMT+02:00 Markus Metz <markus.metz.giswork at gmail.com>:
> for the record, the problem is that for Corine Land Cover 2012, the
> Coordinate Reference System embedded in the raster data is
>
> LOCAL_CS["Geocoding information not available Projection Name =
> ETRS_1989_LAEA Units = meters GeoTIFF Units = ot",
> UNIT["unknown",1]]
>
> while it should be
>
> PROJCS["ETRS89 / LAEA Europe",
> GEOGCS["ETRS89",
> DATUM["European_Terrestrial_Reference_System_1989",
> SPHEROID["GRS 1980",6378137,298.257222101,
> AUTHORITY["EPSG","7019"]],
> TOWGS84[0,0,0,0,0,0,0],
> AUTHORITY["EPSG","6258"]],
> PRIMEM["Greenwich",0,
> AUTHORITY["EPSG","8901"]],
> UNIT["degree",0.0174532925199433,
> AUTHORITY["EPSG","9122"]],
> AUTHORITY["EPSG","4258"]],
> PROJECTION["Lambert_Azimuthal_Equal_Area"],
> PARAMETER["latitude_of_center",52],
> PARAMETER["longitude_of_center",10],
> PARAMETER["false_easting",4321000],
> PARAMETER["false_northing",3210000],
> UNIT["metre",1,
> AUTHORITY["EPSG","9001"]],
> AUTHORITY["EPSG","3035"]]
>
> Apparently the creators of the data tried to hide the Coordinate Reference
> System in the GIS data available for download.
>
> Markus M
>
> On Mon, Oct 9, 2017 at 7:13 PM, Hakim Benoudjit <h.benoudjit at gmail.com>
> wrote:
> >
> > You're right I wasn't using the gdal commands that come with OSGeo4W
> (with that version of gdal it's working well), I was working with a version
> of gdal that I've compiled from source. So probably some flags had to be
> set during the compilation, but I forgot to do so.
> >
> > Hakim.
> >
> >
> > On 9 October 2017 at 17:54, Markus Metz <markus.metz.giswork at gmail.com>
> wrote:
> >>
> >> Hi Hakim,
> >>
> >> On Mon, Oct 9, 2017 at 6:36 PM, Hakim Benoudjit <h.benoudjit at gmail.com>
> wrote:
> >> >
> >> > Thanks Markus for your reponse.
> >> >
> >> > I tried the gdalwarp command to reproject the land cover raster to
> WGS84 using the following command:
> >> > > gdalwarp -s_srs EPSG:3035 -t_srs EPSG:4326
> C:\Data\Corine-Land-Cover\g100_clc12_V18_5a\subset.tif
> C:\Data\Corine-Land-Cover\g100_clc12_V18_5a\subset-wgs84.tif
> >> >
> >> > But I'm not sure how to provide the csv file it's asking for to
> interpret the projection:
> >> > ERROR 4: Unable to open EPSG support file gcs.csv. Try setting the
> GDAL_DATA environment variable to point to the directory containing EPSG
> csv files.
> >> >
> >> > The only csv file provided with this land cover archive is inside the
> Legend folder (clc_legend.csv), which gives the index of each type of land
> cover.
> >> > Do you have any idea where to locate this gcs.csv file it's asking
> for, and how to provide it on Windows (should I add an environment variable
> set to the path of this file)?
> >>
> >> this gcs.csv file is part of a standard GDAL installation. GDAL uses by
> default its own gcs.csv file, there should be no need to specify this file
> or GDAL_DATA explicitely.
> >>
> >> It seems that something is wrong with the GDAL installation. Are you
> using gdalwarp from OSGeo4W?
> >>
> >> Best,
> >>
> >> Markus
> >>
> >>
> >> >
> >> > Hakim.
>
> >> >
> >> > On 9 October 2017 at 17:23, Markus Metz <
> markus.metz.giswork at gmail.com> wrote:
> >> >>
> >> >>
> >> >>
> >> >> On Mon, Oct 9, 2017 at 4:37 PM, Stefan Blumentrath <
> Stefan.Blumentrath at nina.no> wrote:
> >> >> >
> >> >> > Hi Hakim,
> >> >> >
> >> >> >
> >> >> >
> >> >> > Try r.import (https://grass.osgeo.org/
> grass72/manuals/r.import.html).
> >> >> >
> >> >> > ETRS LAEA (EPSG:3035) is of course “supported”.
> >> >>
> >> >> True, but a coordinate reference system not included in the input
> data, therefore r.import will not work and you need to define the CRS
> (EPSG:3035) manually.
> >> >>
> >> >> Markus M
> >> >> >
> >> >> >
> >> >> >
> >> >> > Cheers
> >> >> >
> >> >> > Stefan
> >> >> >
> >> >> >
> >> >> >
> >> >> > From: grass-user [mailto:grass-user-bounces at lists.osgeo.org] On
> Behalf Of Hakim Benoudjit
> >> >> > Sent: mandag 9. oktober 2017 16.02
> >> >> > To: grass-user at lists.osgeo.org
> >> >> > Subject: [GRASS-user] Unable to open the Corine land cover map
> using GrassGIS 7
> >> >> >
> >> >> >
> >> >> >
> >> >> > Hi,
> >> >> >
> >> >> > I'm unable to open the Coring Land cover map (100m accuracy
> version) for Europe using GrassGIS, which can be downloaded from
> http://land.copernicus.eu/pan-european/corine-land-cover/clc-2012.
> >> >> >
> >> >> > Apparentely the coordinate system of this land cover map isn't
> supported (The projection is ETRS89 (EPSG:3035)), while the projection of
> the location I'm trying to import the raster to is WGS84 (EPSG:4326). Here
> is the error shown in GrassGIS: ERROR: Coordinate reference system not
> available for input <C:\Data\Corine Land Cover\g100_clc12_V18_5a\g100_
> clc12_V18_5.tif>
> >> >> >
> >> >> >
> >> >> >
> >> >> > Is there a workaround in GrassGIS to open this image?
> >> >> >
> >> >> > Otherwise which tool should I use to reproject it?
> >> >> >
> >> >> > Thanks.
> >> >> >
> >> >> > Hakim.
> >> >> >
> >> >> >
> >> >> > _______________________________________________
> >> >> > grass-user mailing list
> >> >> > grass-user at lists.osgeo.org
> >> >> > https://lists.osgeo.org/mailman/listinfo/grass-user
> >> >>
> >> >
> >
> >
>
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