[Qgis-user] Can I open NetCDF files with QGIS?

[Paolo Corti]

Hi
sorry if this has been discussed before, but according to what I see
here [1] there was not an answer.

I need to open a NetCDF file with QGIS.
I am using QGIS 1.7.2, and GDAL 1.9.0.
I can successfully manage NetCDF files with GDAL:

$ gdalinfo --formats
Supported Formats:
  ...
  netCDF (rw+): Network Common Data Format
  ...

$ gdalinfo Glb_20111001.nc
Driver: netCDF/Network Common Data Format
Files: Glb_20111001.nc
Size is 512, 512
Coordinate System is `'
Metadata:
  NC_GLOBAL#CDI=Climate Data Interface version 1.4.3
  NC_GLOBAL#CDO=Climate Data Operators version 1.4.3
(http://www.mpimet.mpg.de/cdo)
  NC_GLOBAL#Conventions=CF-1.0
  NC_GLOBAL#history=Wed Oct 12 23:30:47 2011: cdo -s -f nc merge
af01_20111001.nc af02_20111001.nc pf01_20111001.nc pf02_20111001.nc
pf03_20111001.nc pf04_20111001.nc pf05_20111001.nc pf06_20111001.nc
pf07_20111001.nc pf08_20111001.nc pf09_20111001.nc pf10_20111001.nc
pf11_20111001.nc pf12_20111001.nc pf13_20111001.nc pf14_20111001.nc
pf15_20111001.nc pf16_20111001.nc pf17_20111001.nc pf18_20111001.nc
pf19_20111001.nc pf20_20111001.nc pf21_20111001.nc pf22_20111001.nc
pf23_20111001.nc pf24_20111001.nc pf25_20111001.nc pf26_20111001.nc
pf27_20111001.nc pf28_20111001.nc pf29_20111001.nc pf30_20111001.nc
pf31_20111001.nc pf32_20111001.nc pf33_20111001.nc pf34_20111001.nc
pf35_20111001.nc pf36_20111001.nc pf37_20111001.nc pf38_20111001.nc
pf39_20111001.nc pf40_20111001.nc pf41_20111001.nc pf42_20111001.nc
pf43_20111001.nc pf44_20111001.nc pf45_20111001.nc pf46_20111001.nc
pf47_20111001.nc pf48_20111001.nc pf49_20111001.nc pf50_20111001.nc
Glb_20111001.nc
Wed Oct 12 23:30:39 2011: cdo -s -f nc merge
pf50_20111001_DangerRisk.nc pf50_20111001_FWI.nc pf50_20111001.nc
Wed Oct 12 23:30:37 2011: cdo -s -f nc mergetime
pf50_20111001_20111001_FWI.nc pf50_20111001_20111002_FWI.nc
pf50_20111001_20111003_FWI.nc pf50_20111001_20111004_FWI.nc
pf50_20111001_20111005_FWI.nc pf50_20111001_20111006_FWI.nc
pf50_20111001_20111007_FWI.nc pf50_20111001_20111008_FWI.nc
pf50_20111001_20111009_FWI.nc pf50_20111001_20111010_FWI.nc
pf50_20111001_FWI.nc
Wed Oct 12 23:30:36 2011: cdo -s -f nc -R chname,var228,pf50_FWI -copy
Work0/20111001_fwi/pf50/20111001_20111010_FWI.grib
pf50_20111001_20111010_FWI.nc
  NC_GLOBAL#institution=European Centre for Medium-Range Weather Forecasts
Subdatasets:
  SUBDATASET_1_NAME=NETCDF:"Glb_20111001.nc":cf_DangerRisk
  SUBDATASET_1_DESC=[10x640x1280] cf_DangerRisk (32-bit floating-point)
  SUBDATASET_2_NAME=NETCDF:"Glb_20111001.nc":cf_FWI
  SUBDATASET_2_DESC=[10x640x1280] cf_FWI (32-bit floating-point)
  ...
[cut]

When I try to open this dataset with QGIS, this is what I get:
Cannot get GDAL raster band.

In the console this is what has been logged:

Warning: QgsRasterLayer::setDataProvider: Data provider is invalid.
ERROR 10: Pointer 'hObject' is NULL in 'GDALGetMetadata'.

Any ideas? Should I open a ticket?
thanks
P

[1] http://www.osgeo.org/pipermail/qgis-user/2011-July/012949.html

-- 
Paolo Corti
Geospatial software developer
web: http://www.paolocorti.net
twitter: @capooti
skype: capooti