Observations of Solar Spectral Irradiance Change During Cycle 22 from NOAA-9 SBUV/2

Details Observations of Solar Spectral Irradiance Change During Cycle 22 from NOAA-9 SBUV/2 Observations of Solar Spectral Irradiance Change During Cycle 22 from NOAA-9 SBUV/2

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsh12a1151c&link_type=abstract

American Geophysical Union, Fall Meeting 2003, abstract #SH12A-1151

Other

7536 Solar Activity Cycle (2162), 7538 Solar Irradiance, 7549 Ultraviolet Emissions, 7594 Instruments And Techniques

Scientific paper

The NOAA-9 Solar Backscatter Ultraviolet, model 2 (SBUV/2) instrument 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 all time-dependent response changes that affect the solar data. Thus a combination of internal and external techniques was used to derive the instrument's long-term instrument characterization. The corrected NOAA-9 solar spectral irradiance data between 170 and 400 nm extend from March 1985 to May 1997, spanning two solar cycle minima with a single instrument. The NOAA-9 data show an amplitude of 9.3(+/-2.3)% (81-day averaged) at 200-205 nm for solar cycle 22. This is consistent with the result of Δ F200-205 = 8.3(+/-2.6)% for cycle 21 from Nimbus-7 SBUV and Δ F200-205 = 10(+/-2)% (daily values) for cycle 23 from UARS SUSIM. NOAA-9 data at 245-250 nm show a solar cycle amplitude of Δ F245-250 = 5.7(+/-1.8)%. These data were used to investigate whether there was a trend in absolute solar spectral irradiance between the solar cycle 21 and 22 minima. We find an irradiance difference of +/-1% or less between the two minima. The observed differences are less than the uncertainty in the long-term instrument calibration and should not be considered statistically significant. NOAA-9 SBUV/2 data can be combined with other instruments to create a 25-year record of solar UV irradiance.

Affiliated with

Also associated with

No associations

Rating

Observations of Solar Spectral Irradiance Change During Cycle 22 from NOAA-9 SBUV/2 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Observations of Solar Spectral Irradiance Change During Cycle 22 from NOAA-9 SBUV/2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of Solar Spectral Irradiance Change During Cycle 22 from NOAA-9 SBUV/2 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1643386