Estimate of Solar Maximum using the 1-8 Å GOES X-ray Measurements
Abstract
We present an alternate method of determining the progression of the solar cycle through an analysis of the solar X-ray background. Our results are based on the NOAA GOES X-ray data in the 1-8 Angstrom band from 1986 - present, covering solar cycles 22, 23, and 24. The X-ray background level tracks the progression of the solar cycle through its maximum and minimum. Using the X-ray data, we can therefore make estimates of the solar cycle progression and date of so- lar maximum. Based upon our analysis, we conclude that the Sun reached its hemisphere-averaged maximum in Solar Cycle 24 in late 2013. This agrees with the NOAA prediction of a maximum in Fall 2013.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2014
- Bibcode:
- 2014AGUFMSM31A4153W
- Keywords:
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- 7904 Geomagnetically induced currents;
- 7949 Ionospheric storms;
- 7974 Solar effects;
- 7984 Space radiation environment