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     Absorbing Aerosol Index from EOS-Aura/OMI
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     The following datasets are available:

../L3_aersl_omi_YYYYDDMM.txt

     ASCII file with gridded daily EOS-Aura/OMI-TOMS AAIs from the
     year YYYY, month MM, and day DD. The data in this ASCII file are
     in the format lon: 360 bins centered on 179.5 W to 179.5 E
     (1.00 degree steps); lat: 180 bins centered on 89.5 S to 89.5 N
     (1.00 degree steps), which is similar to the format used for the
     GOME AAI and the TOMS Nimbus-7 and Meteor-3 CD-ROM. Details of
     this format are explained in the EarthProbe Data Products User's
     Guide, "EARTHPROBE_USERGUIDE.PDF".

     The values are stored in 3-digit groups 111222333444. The numbers 
     have been multiplied by 10. Note that only AAI values of 0.5 or 
     higher are provided. A value of 999 is used for missing, bad, or 
     flagged data.

     5 = 0.5    10 = 1.0    20 = 2.0

     999 = missing, bad, or flagged data.

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     The following image files are available:

../YYYY/DD/MM/omi_aaiYYYYDDMM_000_lr.gif

     Image files of the daily residue are available in GIF format.
     The files present the daily AAI of year YYYY, month MM, and
     day DD projected onto the world map.

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