10.7-cm solar radio flux and the magnetic complexity of active regions

Details 10.7-cm solar radio flux and the magnetic complexity of active regions 10.7-cm solar radio flux and the magnetic complexity of active regions

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987soph..111..279w&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 111, no. 2, 1987, p. 279-285. NASA-supported research.

Physics

19

Solar Activity, Solar Radio Emission, Sunspot Cycle, Magnetic Flux, Maxima, Minima

Scientific paper

During sunspot cycles 20 and 21, the maximum in smoothed 10.7-cm solar radio flux occurred about 1.5 yr after the maximum smoothed sunspot number, whereas during cycles 18 and 19 no lag was observed. Thus, although 10.7-cm radio flux and Zurich sunspot number are highly correlated, they are not interchangeable, especially near solar maximum. The 10.7-cm flux more closely follows the number of sunspots visible on the solar disk, while the Zurich sunspot number more closely follows the number of sunspot groups. The number of sunspots in an active region is one measure of the complexity of the magnetic structure of the region, and the coincidence in the maxima of radio flux and number of sunspots apparently reflects higher radio emission from active regions of greater magnetic complexity. The presence of a lag between sunspot-number maximum and radio-flux maximum in some cycles but not in others argues that some aspect of the average magnetic complexity near solar maximum must vary from cycle to cycle. A speculative possibility is that the radio-flux lag discriminates between long-period and short-period cycles, being another indicator that the solar cycle switches between long-period and short-period modes.

Affiliated with

Also associated with

No associations

Rating

10.7-cm solar radio flux and the magnetic complexity of active regions 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 10.7-cm solar radio flux and the magnetic complexity of active regions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 10.7-cm solar radio flux and the magnetic complexity of active regions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1762370