Package: qgis
Version: 1.7.4+1.7.5~20120320-1.1+b1
Somehow, qgis fails to access HDF-EOS (MODIS L3, as per [1])
datasets “directly.”
E. g., trying to “Add Raster Layer” against, say,
MCD12Q1.A2008001.h22v03.005.2011215183430.hdf [2], results in
a warning (“Cannot get GDAL raster band:”), and also in the
following output at the terminal:
Warning: QgsRasterLayer::setDataProvider: Data provider is invalid.
ERROR 10: Pointer 'hObject' is NULL in 'GDALGetMetadata'.
Naturally, the gdal-bin tools accept such a file (consider,
e. g., the gdalinfo(1) output MIME'd.)
However, should I create a .vrt dataset out of particular
HDF-EOS “subdataset” (which a single HDF-EOS file can contain an
arbitrary number of) with gdal_translate(1) (see below), the
resulting dataset is accepted by qgis.
$ gdal_translate -of VRT \
HDF4_EOS:EOS_GRID:/.../files/e4ftl01u.ecs.nasa.gov/MODIS_Composites/MOTA/MCD12Q1.005/2008.01.01/MCD12Q1.A2008001.h22v03.005.2011215183430.hdf:MOD12Q1:Land_Cover_Type_1
\
foo.vrt
ISTR, that there was some older version of QGIS (though perhaps
not in Debian) that was presenting a list of “subdatasets”
contained within the HDF-EOS file selected. Thus, this bug may
be a regression.
[1]
http://en.wikipedia.org/wiki/Moderate-Resolution_Imaging_Spectroradiometer#MODIS_Level_3_datasets
[2]
ftp://e4ftl01.cr.usgs.gov/MODIS_Composites/MOTA/MCD12Q1.005/2008.01.01/MCD12Q1.A2008001.h22v03.005.2011215183430.hdf
--
FSF associate member #7257
Driver: HDF4/Hierarchical Data Format Release 4
Files:
files/e4ftl01u.ecs.nasa.gov/MODIS_Composites/MOTA/MCD12Q1.005/2008.01.01/MCD12Q1.A2008001.h22v03.005.2011215183430.hdf
Size is 512, 512
Coordinate System is `'
Metadata:
ALGORITHMPACKAGEACCEPTANCEDATE=1998-01-01
ALGORITHMPACKAGEMATURITYCODE=LAUNCH
ALGORITHMPACKAGENAME=MOD12Q1
ALGORITHMPACKAGEVERSION=V2.0
ASSOCIATEDINSTRUMENTSHORTNAME=MODIS
ASSOCIATEDINSTRUMENTSHORTNAME=MODIS
ASSOCIATEDPLATFORMSHORTNAME=Aqua
ASSOCIATEDPLATFORMSHORTNAME=Terra
ASSOCIATEDSENSORSHORTNAME=MODIS
ASSOCIATEDSENSORSHORTNAME=MODIS
AUTOMATICQUALITYFLAG=Passed
AUTOMATICQUALITYFLAGEXPLANATION=To be set as 'Passed' or 'Failed' to indicate
failure of PGE test.
CHARACTERISTICBINANGULARSIZE=15.0
CHARACTERISTICBINSIZE=463.3127165
COVERAGECALCULATIONMETHOD=volume
DATACOLUMNS=2400
DATAROWS=2400
DAYNIGHTFLAG=Day
DESCRREVISION=5.0
EASTBOUNDINGCOORDINATE=100.016667
EXCLUSIONGRINGFLAG=N
GEOANYABNORMAL=False
GEOESTMAXRMSERROR=50.0
GLOBALGRIDCOLUMNS=86400
GLOBALGRIDROWS=43200
GRINGPOINTLATITUDE=49.762291, 60.09218, 59.929919, 49.676752
GRINGPOINTLONGITUDE=61.938978, 80.073996, 100.833098, 78.016106
GRINGPOINTSEQUENCENO=1, 2, 3, 4
HDFEOSVersion=HDFEOS_V2.9
HORIZONTALTILENUMBER=22
INPUTPOINTER=MOD12Q1.A2004001.h22v03.004.2006117174145.hdf,
MOD12Q1_TEMP.A2008001.h22v03.002.2009278182148.hdf, LC1.A2008001.h22v03.hdf,
LC2.A2008001.h22v03.hdf, LC3.A2008001.h22v03.hdf, LC4.A2008001.h22v03.hdf,
LC5.A2008001.h22v03.hdf, LC1A.A2008001.h22v03.hdf, LC2A.A2008001.h22v03.hdf,
LC3A.A2008001.h22v03.hdf, LC4A.A2008001.h22v03.hdf, LC5A.A2008001.h22v03.hdf,
LCS.A2008001.h22v03.hdf, LCS_P.A2008001.h22v03.hdf, LCP1.A2008001.h22v03.hdf,
LCP2.A2008001.h22v03.hdf, LCP3.A2008001.h22v03.hdf
LOCALGRANULEID=MCD12Q1.A2008001.h22v03.005.2011215183430.hdf
LOCALVERSIONID=2.2.1
LONGNAME=MODIS/Terra+Aqua Land Cover Type Yearly L3 Global 500m SIN Grid
MAXIMUMOBSERVATIONS=2
NADIRDATARESOLUTION=500m
NORTHBOUNDINGCOORDINATE=60.0
NUMBEROFGRANULES=5
PARAMETERNAME=Land_Cover_Type_1
PGEVERSION=5.1.7
PROCESSINGCENTER=MODAPS
PROCESSINGENVIRONMENT=Linux minion5557 2.6.18-238.19.1.el5PAE #1 SMP Fri Jul
15 08:15:44 EDT 2011 i686 i686 i386 GNU/Linux
PRODUCTIONDATETIME=2011-08-03T18:34:30.000Z
QAPERCENTGOODQUALITY=50
QAPERCENTINTERPOLATEDDATA=14
QAPERCENTMISSINGDATA=0
QAPERCENTNOTPRODUCEDCLOUD=0
QAPERCENTNOTPRODUCEDOTHER=1
QAPERCENTOTHERQUALITY=49
QAPERCENTOUTOFBOUNDSDATA=0
RANGEBEGINNINGDATE=2008-01-01
RANGEBEGINNINGTIME=04:45:00.00
RANGEENDINGDATE=2008-12-31
RANGEENDINGTIME=06:40:00.00
REPROCESSINGACTUAL=reprocessed
REPROCESSINGPLANNED=further update is anticipated
SCIENCEQUALITYFLAG=Not Investigated
SCIENCEQUALITYFLAGEXPLANATION=See
http://landweb.nascom/nasa.gov/cgi-bin/QA_WWW/qaFlagPage.cgi?sat=aqua the
product Science Quality status.
SHORTNAME=MCD12Q1
SOUTHBOUNDINGCOORDINATE=50.0
SPSOPARAMETERS=2669
TileID=51022003
VERSIONID=5
VERTICALTILENUMBER=03
WESTBOUNDINGCOORDINATE=62.228953
Subdatasets:
SUBDATASET_1_NAME=HDF4_EOS:EOS_GRID:files/e4ftl01u.ecs.nasa.gov/MODIS_Composites/MOTA/MCD12Q1.005/2008.01.01/MCD12Q1.A2008001.h22v03.005.2011215183430.hdf:MOD12Q1:Land_Cover_Type_1
SUBDATASET_1_DESC=[2400x2400] Land_Cover_Type_1 MOD12Q1 (8-bit unsigned
integer)
