NOAA-9 SBUV/2 SOLAR ULTRAVIOLET IRRADIANCE DATA FOR CYCLE 22

摘要

The NOAA-9 Solar Backscatter Ultraviolet, model 2 (SBUV/2) spectrometer is one of a series of instruments providing daily solar spectral irradiance measurements in the middle and near ultraviolet since 1978. This instrument did not have onboard monitoring of time-dependent response changes. A combination of techniques has been used to determine the long-term instrument characterization for NOAA-9 SBUV/2. The corrected NOAA-9 irradiance data span two solar cycle minima with a single instrument, providing a unique validation of previous solar cycle amplitude estimates. NOAA-9 data can be combined with data from other instruments to create a 25-year record of solar UV irradiance.