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


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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