To: | PVRC <pvrc@mailman.qth.net>, cq-contest@contesting.com, topband@contesting.com |
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Subject: | Topband: The first indicators that Solar Cycle 25 may be similar in amplitude to Cycle 24 |
From: | donovanf@starpower.net |
Date: | Tue, 8 Sep 2015 14:41:14 -0400 (EDT) |
List-post: | <topband@contesting.com">mailto:topband@contesting.com> |
Until mid-2014 Solar Cycle 24 was remarkably quiet. Despite the steadily declining solar flux since mid-2014, the Sun’s large-scale magnetic field suddenly strengthened late in 2014 reaching its highest value in more than twenty years . Using these and related observations, two Naval Research Laboratory researchers, Wang and Sheehy, predict in their August 2015 article in The Astrophysical Journal that Solar Cycle 25 may reach an amplitude similar to Solar Cycle 24. Until the unexpectedly sudden and strong increase in the Sun’s large- scale magnetic field, some solar scientists feared that S olar Cycle 25 might achieve a much lower amplitude than Cycle 24. Those fears might now be put to rest. http://aasnova.org/2015/09/02/witnessing-solar-rejuvenation _________________ Topband Reflector Archives - http://www.contesting.com/_topband |
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