Mid-Term Periodicities in the Solar Magnetic Flux

Details Mid-Term Periodicities in the Solar Magnetic Flux Mid-Term Periodicities in the Solar Magnetic Flux

Feb 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006soph..233..319m&link_type=abstract

Solar Physics, Volume 233, Issue 2, pp.319-330

Physics

7

Scientific paper

In this paper we report an analysis of the solar magnetic fluxes estimated in the period 1971 1998. We applied the wavelet technique to find the significant periodicities of these series. We concentrate particularly in the mid-term quasi-periodicities (1 2 years). The mid-term periodicity of 1.7 year is the dominant fluctuation for all the types of fluxes analyzed (total, closed, open, low and high latitude open fluxes) and has a strong tendency to appear during the descending phase of solar activity. The mid-term fluctuation of 1 year is significantly present in total and closed fluxes, but it is less important in open fluxes. It is recognizable in the high latitude open flux, but it is absent in the low latitude open flux. Due to the uncertainties involved in estimating the exact period of the quasi-annual peak, this component may not be different from the previously-reported 1.3 year periodicity. The high frequency fluctuations of all the fluxes but the high latitude open flux are in phase with the 11 years solar cycle. The high latitude flux tends to be present all the time, showing that along the cycle both the low latitude bipolar active regions and the polar coronal holes regulate this flux. These findings rule out the possibility of a more basic periodicity different from the 11 years cycle.

Affiliated with

Also associated with

No associations

Rating

Mid-Term Periodicities in the Solar Magnetic Flux 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 Mid-Term Periodicities in the Solar Magnetic Flux, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mid-Term Periodicities in the Solar Magnetic Flux will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1165373