________________________________________________________________________ Absorbing Aerosol Index and residues from EOS-Aura/OMI ________________________________________________________________________ The following datasets are available: ../daily/data/YYYY/ESACCI-AEROSOL-L3-AAI-OMI-1D-YYYYMMDD-fv1.9.nc NetCDF file with gridded daily EOS-Aura/OMI residues from year YYYY, month MM, and day DD. The data in this NetCDF file are contained in a 2-dimensional grid (with cells of 1 x 1 degrees). Longitude: 360 bins centered on 179.5 W to 179.5 E (1 degree steps) Latitude : 180 bins centered on 89.5 S to 89.5 N (1 degree steps) The average residue is provided, along with the number of measurements for each of the grid cells. The average AAI is also provided. This is an average of the *positive* residues only. ------------------------------------------------------------------------ ../monthly/data/YYYY/ESACCI-AEROSOL-L3-AAI-OMI-1M-YYYYMM-fv1.9.nc NetCDF file with gridded monthly EOS-Aura/OMI residues from year YYYY and month MM. The format is the same as for the daily gridded data. ------------------------------------------------------------------------ ../daily/lv2data/YYYY/omi_aai_nc_YYYYMMDD.tar.gz, containing: SAS-AAIO-GLB-OMI-YYYYMMDDHHMM-YYYYMMDDHHMM-SCI.nc NetCDF files with EOS-Aura/OMI-TOMS level-2 residue data for each of the orbits from year YYYY, month MM, and day DD. The HH and MM relate to the times of the first and last measurements of the particular orbit. Residue, time, and geolocation information are given in the files. Important: the field "AAI" contains residue values subjected to quality checking, sunglint and solar eclipse filtering, and filtering for the row anomaly problem. The field "residue" is completely unfiltered and should normally not be used. ________________________________________________________________________ The following image files are available: ../omipics/YYYY/MM/DD/omi_aaiYYYYMMDD_000.gif Image files of the daily residue are available in GIF format. The files present the daily residue of year YYYY, month MM, and day DD projected onto the world map. ------------------------------------------------------------------------ ../monthly/images/YYYY/OMI_AAI_map_YYYYMM.png Image files of the gridded monthly averaged AAI are available in PNG format. These files present the monthly averaged AAI of year YYYY and month MM projected onto the world map. ________________________________________________________________________