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SAGE III/ISS: Continuing the Legacy of SAGE Data Products

S. Kizer1,2, M. Roell2, D. Flittner2, R. Damadeo2, K.R. Leavor1, T.N. Knepp1,2, M. Kovilakam2,1, C. Roller1,2, D.F. Hurst3,4, E.G. Hall3,4, A.F. Jordan3,4, P. Cullis3,4, B. Johnson4 and R. Querel5

1Science Systems and Applications, Inc. (SSAI), Lanham, MD 20706; 757-846-4221, E-mail: susan.h.kizer@nasa.gov
2NASA Langley Research Center, Hampton, VA 23681
3Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO 80309
4NOAA Global Monitoring Laboratory (GML), Boulder, CO 80305
5National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand

The Stratospheric Aerosol and Gas Experiment III (SAGE III) instrument installed on the International Space Station (ISS) is a solar and lunar occultation instrument that scans the light from the Sun and Moon through the limb of the Earth’s atmosphere to produce vertical profiles of aerosol, ozone, water vapor, and other trace gases. SAGE III/ISS has completed almost half of a decade of data collection and production of science data products. It continues the legacy of previous SAGE instruments dating back to the 1970s to provide data continuity of stratospheric constituents critical for assessing trends in the ozone layer. This presentation shows how SAGE III/ISS aerosol and gas vertical profiles continue to benefit a worldwide database of in situ and satellite data for climate observation.

Figure 1

Figure 1. The SAGE III/ISS is a solar and lunar occultation instrument that scans the light from the Sun and Moon through the limb of the Earth’s atmosphere to produce vertical profiles of aerosol, ozone, water vapor, and other trace gases. *This event depiction includes a lunar moonset.  An event with an alternate orbit direction would depict a lunar moonrise.