OMI Near Real-Time vs. Science Quality

In order to generate data products within 3 hours of observation time, a number of changes have been made to standard processing approach to expedite the availability of input data sets.

Read more about Science Quality Products.

The quality of OMI NRT Level 2 products compares favorably to the standard products. There appears to be some variances at high latitudes with high solar zenith angles. In the following table we display the maximum differences for a single day and averaged over a week.

ProductVariableDaily Maximum Percentage DifferenceWeekly Average Maximum Percentage Difference
OMTO3Total Ozone Column2.64%1.40%
OMCLDRRCloud Fraction6.02%1.42%
 Cloud Pressure2.82%0.67%
OMAERUVAOD (388 nm)5.95%2.31%