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The objectives are to develop techniques to detect and remove long-term instrument drifts from the operational Solar Backscatter Ultraviolet (SBUV/2) data base using periodic measurements made by the Shuttle Solar Backscatter Ultraviolet Spectral Radiometer and to evaluate the potential effects of scattering by atmospheric aerosols on our ability to detect trends in ozone using SBUV-class instruments.
has produced a family of eight SBUV/2s under contract to NASA/Goddard Space Flight Center and NOAA since 1980. Successive generations of the sensor have flown on Nimbus-7 (November, 1978 through June 21, 1999 ) NOAA 9 (December 1984 through August, 1993), NOAA 11 (September, 1988 through March, 1995), and NOAA 14 (December, 1994 through September 21, 2000 ). NOAA 14 is replaced by NOAA 16 ( September 21, 2000 through present). NOAA 17 launched June 2002 and NOAA 18 launched May, 2005. The calibration unit -the Shuttle Solar Backscatter Ultraviolet Radiometer.
Get this from a library! The detection and interpretation of long-term atmospheric change : tasks in association with the shuttle solar backscatter ultraviolet spectral radiometer.. [University of Chicago. Department of the Geophysical Sciences.; United States. National Aeronautics and Space Administration.;]
A second instrument was launched on NOAA-11 in September 1988. Both continue to operate. Earlier attempts to calibrate satellite data relied on comparisons with ground based observations. However, differences in instrumental techniques severely complicated these efforts. This problem will be over come by regular flights, about once per year, of the Shuttle Solar Backscatter Ultraviolet radiometer.
Raman-scattered light is shifted in frequency from the incident light, which causes filling in of solar Fraunhofer lines in the observed backscattered spectrum (also known as the Ring effect). The magnitude of the rotational Raman scattering filling in is a function of wavelength, solar zenith angle, surface reflectance, surface pressure, and instrument spectral resolution. The filling in predicted by our model is found to be in agreement with observations from the Shuttle Solar Backscatter Ultraviolet Radiometer.