Abstract: The Shuttle Solar Backscatter Ultraviolet (SSBUV) Level-2 Ozone data are available for eight space shuttle missions flown between 1989 and 1996. SSBUV, a successor to the SBUV flown on the Nimbus-7 satellite, is nearly identical to the SBUV/2 instruments flying on the NOAA satellites. Data are available in the ASCII AMES text format. Ozone profiles of the uppoer atmosphere and total column ozone ... values are available for the following time periods:
Flight #1: 1989 October 19, 20, 21. Flight #2: 1990 October 7, 8, 9. Flight #3: 1991 August 3, 4, 5, 6. Flight #4: 1992 March 29, 31. Flight #5: 1993 April 9, 11, 13, 15, 16. Flight #6: 1994 March 14, 15, 17. Flight #7: 1994 November 5, 7, 10, 13. Flight #8: 1996 January 12, 16, 18.
SSBUV measures spectral ultraviolet radiances backscattered by the earth's atmosphere. For the ozone measurements the instrument steps over wavelengths between 252.2 and 339.99 nm while viewing the earth in the nadir position (50 km x 50 km footprint at nadir) at 19 pressure levels between 0.3 mb and 100 mb.
Ozone along orbital track in the nadir and daytime only. Ozone values listed in the ASCII format have been screened to include only those scans that pass quality code standards (as specified in the file header). Portions of mission are dedicated to SSBUV solar view; thus there is incomplete spatial coverage within the stated latitude bounds. ... SBUV total ozone and ozone profiles have been extensively validated using Dobson, Umkehr, balloon and rocket data. Some comparisons have been performed with SAGE ozone profiles. In general there is agreement among these measurements to within the errors of the measurements. These analysis appear in the references. SSBUV data should be at least as accurate as these data.
The confidence levels and accuracy judgments for the SSBUV parameters are as follows:
Ultraviolet Albedos Accuracy: 2% based o NIST absolute standards Wavelength dependent: 1% Precision: 0.5% Flight to flight precision: 1-2%
Total Ozone Accuracy: 2% Precision: 0.5%
Ozone Profile: Accuracy: 5% at 40 km increasing to 10% at upper and lower limits (50 and 25 km) Precision: 2%
Hilsenrath, E., R.P. Cebula, M.C. Bories, P.W. DeCamp, L.-K. Huang, C.N. Hui, S.J. Janz, T.J. Kelly, K.R. McCullough, J.J. Mederios, J.T. Riley, B.K. Rice, and C.D. Thorpe, 1996: Contributions of the SSBUV Experiment to Long-Term Ozone Monitoring, in Proc. 18th Quadrennial Ozone Symposium, L'Aquila 1996.
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Cebula, R. P., E. Hilsenrath, T. J. Kelly, G. Batluck, "On the Radiometric Stability of the Shuttle Borne Solar Backscatter Ultraviolet Spectrometer", Proc. SPIE, 1493, 91-99, (1991) Hilsenrath, E., P.A. Newman, R.P. Cebula, P.W. DeCamp, T.J. Kelly and L. Coy, "Ozone Change from 1992 to 1993 as Observed from SSBUV on the Atlas-1 and Atlas-2 Missions," Geophy. Res. Lett., 23 2305-2308, 1996.
Hilsenrath, E., R.P. Cebula, M.T. Deland, K. Laamann, S. Taylor, C. Wellemeyer, and P.K. Bhartia, 1995: Calibration of the NOAA-11 Solar Backscatter Ultraviolet (SBUV/2) Ozone Data Set from 1989 to 1993 using In-Flight Calibration Data and SSBUV, J. Geophys. Res., 100, 1351-1366, 1995.
Hilsenrath, E., D.E. Williams, R.T. Caffrey, R.P. Cebula, and S.J. Hynes, "Calibration and Radiometric Stability of the Shuttle Solar Backscatter Ultraviolet (SSBUV) Experiment," Metrologia, 30, 243-248, 1993.
Hilsenrath, E., R.P. Cebula, and C.H. Jackman, "Ozone Depletion in the Upper Stratosphere Estimated from Satellite and Space Shuttle Data," Nature, 358, 131-133, 1992.
Hilsenrath, E., R.P. Cebula, S.J. Hynes, and R.T. Caffrey, "Implications of Space Shuttle Flight on the Calibration of Instruments Observing Atmospheric Ozone and the Solar Irradiance," Metrologia, 28, 301-308, 1991.
Hilsenrath, E., D. Williams, and J. Frederick, "Calibration of Long Term Data Sets from Operational Satellites using the Space Shuttle," SPIE Proc., 924, 215-222, 1988.