NASA -National Aeronautics and Space Administration
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While the SAGE II Mission was active, it provided the scientific community with a global depiction of the distribution of aerosol, ozone, water vapor and nitrogen dioxide over a period of 21 years. Using these models of distribution, SAGE II contributed unique and crucial input to the understanding of global, seasonal and inter-annual variability in climate and, in particular, trends in stratospheric ozone. SAGE II is now the predecessor to the SAGE III Mission, which is continuing the valuable research of the SAGE Program. SAGE 2 instrument image