Wesley,<br><br>Can you provide the exact link for the dataset or a page containing the link?<br><br><div class="gmail_quote">On Thu, Dec 1, 2011 at 2:33 PM, Wesley Roberts <span dir="ltr"><<a href="mailto:wroberts@csir.co.za">wroberts@csir.co.za</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Dear gdal-dev,<br>
<br>
I have some MISR hdf data downloaded from the following website (<a href="http://eosweb.larc.nasa.gov/PRODOCS/misr/table_misr.html" target="_blank">http://eosweb.larc.nasa.gov/PRODOCS/misr/table_misr.html</a>). I have tried to use gdal to access the hdf data using techniques similar to other hdf data sources (MODIS - NDVI and ET). gdalinfo is able to read the contents of the data file in much the same way as it does with MODIS data products. See below, however when I use gdal_translate to extract my data set of interest the result is incorrect. The command executes as per normal and writes a data set to my disk, however when I look at the result in QGIS I see that the image is flippped to the left (north now faces west) and that the data is jumbled (white noise). The command I am using is below. Any help on extracting MISR data blocks is greatly appreciated.<br>
<br>
Many thanks,<br>
Wesley<br>
<br>
<br>
<br>
###################################################gdal_translate###################################################<br>
<br>
gdal_translate -of GTiff "HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":RegParamsLnd:NormBlkSfcIrrad" output.tif<br>
<br>
###################################################gdalinfo###################################################<br>
gdalinfo MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf<br>
<br>
Driver: HDF4/Hierarchical Data Format Release 4<br>
Files: MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf<br>
Size is 512, 512<br>
Coordinate System is `'<br>
Metadata:<br>
HDFEOSVersion=HDFEOS_V2.13<br>
Path_number=174<br>
AGP_version_id=2<br>
DID_version_id=4<br>
Number_blocks=180<br>
Ocean_blocks_size=180<br>
Ocean_blocks.count=50<br>
Ocean_blocks.numbers=5, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 174, 175, 176, 177, 178, 179, 180, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0<br>
SOM_parameters.som_ellipsoid.a=6378137<br>
SOM_parameters.som_ellipsoid.e2=0.006694348<br>
SOM_parameters.som_orbit.aprime=1<br>
SOM_parameters.som_orbit.eprime=1<br>
SOM_parameters.som_orbit.gama=1<br>
SOM_parameters.som_orbit.nrev=233<br>
<a href="http://SOM_parameters.som_orbit.ro" target="_blank">SOM_parameters.som_orbit.ro</a>=7078040.8<br>
SOM_parameters.som_orbit.i=1.71572532628785<br>
SOM_parameters.som_orbit.P2P1=0.0686666666666667<br>
SOM_parameters.som_orbit.lambda0=-2.43535567370853<br>
Origin_block.ulc.x=7460750<br>
Origin_block.ulc.y=527450<br>
Origin_block.lrc.x=7601550<br>
Origin_block.lrc.y=1090650<br>
Start_block=117<br>
End block=118<br>
Cam_mode=1<br>
Num_local_modes=0<br>
Local_mode_site_name=<br>
Orbit_QA=0<br>
coremetadata=<br>
<br>
<br>
############################################LOTS of Metadata Removed##################################################################<br>
<br>
<br>
Subdatasets:<br>
SUBDATASET_1_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":RegParamsLnd:NormBlkSfcIrrad<br>
SUBDATASET_1_DESC=[180x8x32x4] NormBlkSfcIrrad RegParamsLnd (32-bit floating-point)<br>
SUBDATASET_2_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":RegParamsLnd:NormBlkSfcIrradUnc<br>
SUBDATASET_2_DESC=[180x8x32x4] NormBlkSfcIrradUnc RegParamsLnd (32-bit floating-point)<br>
SUBDATASET_3_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":RegParamsLnd:BOABihemAlb<br>
SUBDATASET_3_DESC=[180x8x32x4] BOABihemAlb RegParamsLnd (32-bit floating-point)<br>
SUBDATASET_4_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":RegParamsLnd:BOABihemAlbUnc<br>
SUBDATASET_4_DESC=[180x8x32x4] BOABihemAlbUnc RegParamsLnd (32-bit floating-point)<br>
SUBDATASET_5_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":RegParamsLnd:RegSfcRetrOptDepth<br>
SUBDATASET_5_DESC=[180x8x32] RegSfcRetrOptDepth RegParamsLnd (32-bit floating-point)<br>
SUBDATASET_6_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":RegParamsLnd:RegSfcRetrOptDepthUnc<br>
SUBDATASET_6_DESC=[180x8x32] RegSfcRetrOptDepthUnc RegParamsLnd (32-bit floating-point)<br>
SUBDATASET_7_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":RegParamsLnd:RegSfcRetrMixture<br>
SUBDATASET_7_DESC=[180x8x32] RegSfcRetrMixture RegParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_8_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":RegParamsLnd:RegSfcRetrAlgTypeFlag<br>
SUBDATASET_8_DESC=[180x8x32] RegSfcRetrAlgTypeFlag RegParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_9_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":RegParamsLnd:LandQA<br>
SUBDATASET_9_DESC=[180x8x32] LandQA RegParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_10_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":RegParamsLnd:SolZenAng<br>
SUBDATASET_10_DESC=[180x8x32] SolZenAng RegParamsLnd (32-bit floating-point)<br>
SUBDATASET_11_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":RegParamsLnd:ViewZenAng<br>
SUBDATASET_11_DESC=[180x8x32x9] ViewZenAng RegParamsLnd (32-bit floating-point)<br>
SUBDATASET_12_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":RegParamsLnd:RelViewCamAziAng<br>
SUBDATASET_12_DESC=[180x8x32x9] RelViewCamAziAng RegParamsLnd (32-bit floating-point)<br>
SUBDATASET_13_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":RegParamsLnd:ScatterAng<br>
SUBDATASET_13_DESC=[180x8x32x9] ScatterAng RegParamsLnd (32-bit floating-point)<br>
SUBDATASET_14_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":RegParamsLnd:GlitterAng<br>
SUBDATASET_14_DESC=[180x8x32x9] GlitterAng RegParamsLnd (32-bit floating-point)<br>
SUBDATASET_15_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:LandHDRF<br>
SUBDATASET_15_DESC=[180x128x512x4x9] LandHDRF SubregParamsLnd (16-bit unsigned integer)<br>
SUBDATASET_16_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:LandHDRFUnc<br>
SUBDATASET_16_DESC=[180x128x512x4x9] LandHDRFUnc SubregParamsLnd (16-bit unsigned integer)<br>
SUBDATASET_17_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:RDQI<br>
SUBDATASET_17_DESC=[180x128x512x4x9] RDQI SubregParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_18_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:LandBHR<br>
SUBDATASET_18_DESC=[180x128x512x4] LandBHR SubregParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_19_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:LandBHRRelUnc<br>
SUBDATASET_19_DESC=[180x128x512x4] LandBHRRelUnc SubregParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_20_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:LandBRF<br>
SUBDATASET_20_DESC=[180x128x512x4x9] LandBRF SubregParamsLnd (16-bit unsigned integer)<br>
SUBDATASET_21_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:LandDHR<br>
SUBDATASET_21_DESC=[180x128x512x4] LandDHR SubregParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_22_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:BRFModParam1<br>
SUBDATASET_22_DESC=[180x128x512x4] BRFModParam1 SubregParamsLnd (16-bit unsigned integer)<br>
SUBDATASET_23_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:BRFModParam2<br>
SUBDATASET_23_DESC=[180x128x512x4] BRFModParam2 SubregParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_24_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:BRFModParam3<br>
SUBDATASET_24_DESC=[180x128x512x4] BRFModParam3 SubregParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_25_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:BRFModFitResid<br>
SUBDATASET_25_DESC=[180x128x512x4] BRFModFitResid SubregParamsLnd (16-bit unsigned integer)<br>
SUBDATASET_26_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:NDVI<br>
SUBDATASET_26_DESC=[180x128x512] NDVI SubregParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_27_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:BiomeBestEstimate<br>
SUBDATASET_27_DESC=[180x128x512] BiomeBestEstimate SubregParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_28_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:BiomeBestEstimateQA<br>
SUBDATASET_28_DESC=[180x128x512] BiomeBestEstimateQA SubregParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_29_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:LAIBestEstimate<br>
SUBDATASET_29_DESC=[180x128x512] LAIBestEstimate SubregParamsLnd (32-bit floating-point)<br>
SUBDATASET_30_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:LAIBestEstimateQA<br>
SUBDATASET_30_DESC=[180x128x512] LAIBestEstimateQA SubregParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_31_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:FPARBestEstimate<br>
SUBDATASET_31_DESC=[180x128x512] FPARBestEstimate SubregParamsLnd (32-bit floating-point)<br>
SUBDATASET_32_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:BHRPAR<br>
SUBDATASET_32_DESC=[180x128x512] BHRPAR SubregParamsLnd (32-bit floating-point)<br>
SUBDATASET_33_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:DHRPAR<br>
SUBDATASET_33_DESC=[180x128x512] DHRPAR SubregParamsLnd (32-bit floating-point)<br>
SUBDATASET_34_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:LAIMean1<br>
SUBDATASET_34_DESC=[180x128x512x6] LAIMean1 SubregParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_35_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:LAIDelta1<br>
SUBDATASET_35_DESC=[180x128x512x6] LAIDelta1 SubregParamsLnd (32-bit floating-point)<br>
SUBDATASET_36_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:LAINumGoodFit1<br>
SUBDATASET_36_DESC=[180x128x512x6] LAINumGoodFit1 SubregParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_37_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:LAIMean2<br>
SUBDATASET_37_DESC=[180x128x512x6] LAIMean2 SubregParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_38_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:LAIDelta2<br>
SUBDATASET_38_DESC=[180x128x512x6] LAIDelta2 SubregParamsLnd (32-bit floating-point)<br>
SUBDATASET_39_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:LAINumGoodFit2<br>
SUBDATASET_39_DESC=[180x128x512x6] LAINumGoodFit2 SubregParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_40_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:LAIQA<br>
SUBDATASET_40_DESC=[180x128x512x6] LAIQA SubregParamsLnd (8-bit unsigned integer)<br>
SUBDATASET_41_NAME=HDF4_EOS:EOS_GRID:"MISR_AM1_AS_LAND_P174_O001092_F07_0022.b117-118.hdf":SubregParamsLnd:SubrVar<br>
SUBDATASET_41_DESC=[180x128x512x4] SubrVar SubregParamsLnd (8-bit unsigned integer)<br>
Corner Coordinates:<br>
Upper Left ( 0.0, 0.0)<br>
Lower Left ( 0.0, 512.0)<br>
Upper Right ( 512.0, 0.0)<br>
Lower Right ( 512.0, 512.0)<br>
Center ( 256.0, 256.0)<br>
<font color="#888888"><br>
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</font></blockquote></div><br><br clear="all"><br>-- <br>Best regards,<br>Chaitanya kumar CH.<br><br>+91-9494447584<br>17.2416N 80.1426E<br>