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How can i see the classes of the product MODIS MCD12Q1 and analyze them in ENVI exelis? Seadas open them but ENVI not.

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First of all the MDC12Q1 product consists of several subdatasets (layers), you are most likely interested in the first five where each represents a different classification system.

  1. IGBP
  2. UMD
  3. LAI/fPAR
  4. NPP/BGC
  5. PFT

You will need to decide on the classification scheme you want to use and then select the appropriate layer to open. Each layer is 8-bit unsigned and has values ranging from 0 to 254.

A table describing which value represents which class can be found in the official MCD12Q1 documentation

  • I have already done this. I have chosen the IGBP layer but it still doesn't open. To be precise, envi coudn't recognise the georeference of hdf data so I have used the modis conversion toolkit in order to georeference them. This toolkit converted them to hdr and dat format but classes don't open in envi. I have tried Modis tool too but it didn't work. What else could i do? – Maria Papageorgiou Apr 29 '15 at 11:59
  • You could always use GDAL to warp a specific subdataset to a new SRS - eg. WGS84: gdalwarp -t_srs "+proj=longlat +ellps=WGS84". You can get the full name of the subdataset for IGBP with gdalinfo. Or use a GIS software than can open .hdf files (e.g. QGIS) and reproject the required data from there. – Kersten Apr 29 '15 at 13:26

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