[GRASS-user] Problems importing esri grids

[Johannes Signer]

Dear All, 

I am experiencing problems importing ESRI GRIDS into GRASS 6.4.0. I has
worked well before. Now when import (r.in.gdal) the the rasters the only
warning I get is:

WARNING: Fixing subtle input data rounding error of north boundary
         (1.19996e-10>2.77778e-07)

but when I look at the rasters afterwards, they contain only nulls.

I checked the grids:

> gdalinfo A1B_2020_2049_cccma_cgcm3_1_t63_prec_2
Driver: AIG/Arc/Info Binary Grid
Files: A1B_2020_2049_cccma_cgcm3_1_t63_prec_2
       A1B_2020_2049_cccma_cgcm3_1_t63_prec_2/w001001.adf
       A1B_2020_2049_cccma_cgcm3_1_t63_prec_2/dblbnd.adf
       A1B_2020_2049_cccma_cgcm3_1_t63_prec_2/w001001x.adf
       A1B_2020_2049_cccma_cgcm3_1_t63_prec_2/log
       A1B_2020_2049_cccma_cgcm3_1_t63_prec_2/prj.adf
       A1B_2020_2049_cccma_cgcm3_1_t63_prec_2/hdr.adf
       A1B_2020_2049_cccma_cgcm3_1_t63_prec_2/vat.adf
       A1B_2020_2049_cccma_cgcm3_1_t63_prec_2/sta.adf
Size is 8640, 3600
Coordinate System is:
GEOGCS["WGS 84",
    DATUM["WGS_1984",
        SPHEROID["WGS 84",6378137,298.257223563,
            AUTHORITY["EPSG","7030"]],
        TOWGS84[0,0,0,0,0,0,0],
        AUTHORITY["EPSG","6326"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9108"]],
    AUTHORITY["EPSG","4326"]]
Origin = (-180.000000000000000,90.000000000119996)
Pixel Size = (0.041666666666700,-0.041666666666700)
Corner Coordinates:
Upper Left  (-180.0000000,  90.0000000) (180d 0' 0.00"W, 90d 0' 0.00"N)
Lower Left  (-180.0000000, -60.0000000) (180d 0' 0.00"W, 60d 0' 0.00"S)
Upper Right ( 180.0000000,  90.0000000) (180d 0' 0.00"E, 90d 0' 0.00"N)
Lower Right ( 180.0000000, -60.0000000) (180d 0' 0.00"E, 60d 0' 0.00"S)
Center      (   0.0000000,  15.0000000) (  0d 0' 0.00"E, 15d 0' 0.00"N)
Band 1 Block=256x4 Type=Int16, ColorInterp=Undefined
  Min=0.000 Max=810.000 
  NoData Value=-32768


My grass environment:
g.proj -p
-PROJ_INFO-------------------------------------------------
name       : Latitude-Longitude
datum      : wgs84
towgs84    : 0.000,0.000,0.000
proj       : ll
ellps      : wgs84
-PROJ_UNITS------------------------------------------------
unit       : degree
units      : degrees
meters     : 1.0

g.region -p
projection: 3 (Latitude-Longitude)
zone:       0
datum:      wgs84
ellipsoid:  wgs84
north:      90N
south:      60S
west:       180W
east:       180E
nsres:      0:02:30
ewres:      0:02:30
rows:       3600
cols:       8640
cells:      31104000

The grids display flawlessly in QGIS. Also converting them to *.asc or *.tif
using gdal_translate did not help to resolve the import problem into GRASS.

If any one has a hint where the problem could be, I would greatly appreciate
it.

Thanks 
Johannes 

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