A specific formula was used to distinguish Sporadic Es propagation from F2 or Trans-Equatorial propagation. Only PropNET participant data from North America and Hawaii was used in the study. Any questionable data was removed to the best of my ability.
This information is for the use Amateur Radio public. Please reference PropNET Studies as the source.
Narrative will be added as time permits.
Enjoy. This stuff is fascinating and I believe it answers many questions about Sporadic Es propagation from year to year.
After one of the longest lulls in the Solar cycle ever recorded, the sun finally started to get more active in 2011. Unfortunately the increased activity in Solar Flux peaked in 2012. Many look for a second peak in 2013-14.
Their ability to produce intense flares has been impeded.
PropNET captures were about 5 times greater than Non-PropNET captures.
Changes in the mixture of PropNET to Non-PropNET changes since 2010 have occurred, but are very slight overall. For the past two seasons, PropNET to Non-PropNET are at 80% to 20%. The only real changes that were noticeable were around year 2011 and were no more than 5%.
Only Eastward conditions are more volumes found.
Northwest and Southeast show afternoon and evening activity.
As was expected, solar activity has a profound affect on Es propagation after the minimum has occurred. The peak should occur by the winter. It will be interesting to see how these numbers change the next few years. I think it will be on the way up.
More analysis to come...............
Art Jackson KA5DWI