Science Systems and Applications, Inc. - Science and Technology with Passion

Ozone data

The lower plot shows monthly average ozone (60°S – 60°N) from eight individual instruments, while the upper plot is % difference from 1979/1980 showing the long-term ozone decrease. Note that the interinstrument consistency is better than 1%.The lower plot shows monthly average ozone (60°S – 60°N)
from eight individual instruments, while the upper plot
is % difference from 1979/1980 showing the long-term
ozone decrease. Note that the inter-instrument consistency
is better than 1%. Credit: NASA and NOAA
SSAI created and delivered Version 8.6 ozone data products for eight separate Solar Backscatter Ultra Violet (SBUV) instruments, representing 40+ years of measurements. These data sets incorporated improvements in ozone cross-sections, cloud climatology, a priori ozone climatology, and revised calibrations for both time-dependent changes and inter-instrument agreement. Notably, we created and released the first publicly available long-term gridded SBUV-based ozone profile data set, dramatically enhancing the value of SBUV data. For the first time, they could be used in international assessments of long-term ozone profile change. As part of the comprehensive calibration analysis for data products, we adapted the empirical in-band scattered light correction method to both NOAA-14 and NOAA-19 SBUV/2 data. This correction significantly improved the accuracy of upper stratospheric ozone data at high solar zenith angles for these instruments.