**------------------------------------------------------------**

  This directory contains tarfiles of the International MODIS
  and AIRS Processing Package (IMAPP) Products.  The software is 
  supported on the following platforms: 

   (1) SGI, IRIX64 6.5

   (2) SUN, SunOS 5.7, sun4u sparc SUNW,Ultra-5_10

   (3) Intel, Solaris_x86, compiled with g77/gcc.

   (4) IBM, AIX 4.3

   (5) LINUX, 2.2.15-4mdksmp, compiled with g77/gcc.

   (6) HP,  HP-UX, B.10.20

   Installing and running the 4 tar files will require ~ 2.5GB 
   (Gigabytes) of disc space.

**------------------  download directory  ---------------------**

  CLOUDMASK.tar:    Cloud mask (MOD35) source code with build 
                    and run instructions.

                    Note: ancillary and flatfile must be built
                          prior to cloudmask and all three should
                          be built off of the same core directory,
                          for example /MODIS/ancillary, 
                          /MODIS/flatfile, /MODIS/cloudmask.
                          There is a modis_cloudmask.csh script
                          in the cloudmask/cmd directory which
                          will run the three processes together
                          on the test data sets included in the 
                          tar files.

  CLOUDTOP.tar:     Cloud top properties and cloud phase (MOD06)
                    source code with build and run instructions.

                    Note: cloudmask, ancillary and flatfile must be built
                          prior to cloudtop and all three should
                          be built off of the same core directory,
                          for example /MODIS/cloudtop, /MODIS/ancillary,
                          /MODIS/flatfile, /MODIS/cloudmask.
                          There is a modis_cloudtop.csh script
                          in the cloudtop/src directory which
                          will run the four processes together
                          on the test data sets included in the 
                          tar files.

  FLATFILE.tar:  Flatfile source code with build and run instructions
                 and test input data.
                 This code extracts radiances and reflectances from
                 input L1B DAAC production or L1B IMAPP hdf files.

  ANCILLARY.tar:  Ancillary extraction source code with build and run
                  instructions and test input data.  

  4.1r3_solarisx86.tar:  g77 compiled HDF toolkit for use on the 
                    Solaris x86 machines.


  Documentation :
    CM_JGRPAPER.pdf:  PDF version of the cloud mask technique description
                      published in Journal of Geophysical Research:
                      Ackerman, Strabala, Menzel, Frey, Moeller, & 
                      Gumley, 1998: Discriminating clear sky from 
                      clouds with MODIS. Journal of Geophysical Research, 
                      103, 32141-32157.

    Cloud_Mask_Bit_Description.txt: A description of the cloud mask
                    output file products.

    Example_Cloud_Mask_Use.txt:  Example of how the cloud mask can be 
                     used in another algorithm.

    Cloud_Mask_Visualization.txt:  Example of how to visualize 
                      the cloudmask output bits.

    Cloud_Mask_Problem_Regions.txt: Descriptions of regions of the 
                      globe where the MODIS cloud mask has difficulty
                      in discriminating cloud versus clear.

    Cloud_Top_Property_Description.txt: A description of the cloud top
                      property and cloud phase output file products.


  Test Output Files:
    Test ancillary result files for comparison with output ancillary data 
       NISE_SSMIF13_20010602.HDFEOS_NORTH.bin.gz 
       NISE_SSMIF13_20010602.HDFEOS_SOUTH.bin.gz
       eng.010602.bin.gz
       gdas1.PGrbF00.010602.18z.bin.gz


    Test flatfile radiance/reflectance result files for comparison with
       output flatfile data.
       t1.01153.1645.1000m.hdr
       t1.01153.1645.1000m.img.gz
       t1.01153.1645.250m.hdr
       t1.01153.1645.250m.img.gz
       t1.01153.1645.geo.hdr
       t1.01153.1645.geo.img.gz
       t1.01153.1645.met.hdr
       t1.01153.1645.met.img.gz


    Test cloudmask result files for comparison with output cloudmask
       data files.
       t1.01153.1645.mod35.hdr
       t1.01153.1645.mod35.img.gz
       t1.01153.1645.mod35debug.txt
       t1.01153.1645.mod35qa.hdr
       t1.01153.1645.mod35qa.img.gz

    Test cloud top properties and cloud phase result files for comparison 
        with output cloud top data files.
        t1.01153.1645.mod06.hdr
        t1.01153.1645.mod06.img.gz
        t1.01153.1645.mod06debug.txt
        t1.01153.1645.mod06qa.hdr
        t1.01153.1645.mod06qa.img.gz