Propagation Summary
Solar activity was low during
the second half of July, apart from three C3 Solar flux events. The first two occurred at 15, and 16 July,
followed by a third event on 21st July. The Solar flux also reached high levels every
day during this period. The Geomagnetic
field ranged from quiet to minor storm levels, peaking on 15 July, then
unsettled to active conditions were observed from 20 July onwards.
Propagation
Forecast up to 17 August 2013
Solar
activity is expected to remain low with a chance for isolated minor radio
blackout conditions throughout the period due to active region flare
activity. The Solar Flux is expected to
be at high levels through 20 August, due to a Coronal Hole High Speed
Stream. The Geomagnetic Field is
expected to be generally quiet to unsettled for the majority of the period with
the exception of 9-11 August and 14-15 August due to a recurrent Coronal Hole
High Speed Stream. Weekly updates to
this forecast are available at: http://www.swpc.noaa.gov/ftpdir/weekly/WKHF.txt
The Sun's 2013 Solar Activity Peak Is Weakest in 100 Years
Though the sun is
currently in the peak year of its 11-year solar weather cycle, our closest star
has been rather quiet over all, scientists say.
This year's solar maximum is shaping up to be the weakest in 100 years and the next one could be
even more quiescent, scientists said "It's
the smallest maximum we've seen in the Space Age," David Hathaway of
NASA's Marshall Space Flight Center in Huntsville, Ala., told reporters in a
teleconference. The full article can be
found at: http://www.space.com/21937-sun-solar-weather-peak-is-weak.html (Via Mike Terry)
Links to these
articles and more can be found at: http://www.jameswelsh.org.uk
No comments:
Post a Comment