Like tropo--except it's AM!

[Ric Werme]

Dan Strassberg pondered:

> Last night and early this morning I picked up some AM stations I've
> never heard in Arlington. ...

> This is high-angle skywave, which suggests--I believe--that the
> reflective layer of the ionosphere is unusually low overhead. I can
> offer no explanation for that phemomenon. Maybe someone else can.

Umm, I thought you were the local expert on all such matters.

Solar activity is very, very low.  We've been in an extended minimum long
enough now so that some people are wringing hands over the potential start of
Dalton or Maunder Minimum and global cooling.

Cooling has started, but it may not be due to solar forcing.

At any rate, it's a good time for propagation anomalies related to low
solar activity.

I won't hazard a guess as to what it is, but
http://ecjones.org/propag.html offers some possibilities.

      -Ric Werme
-- 
  Coming soon - which way is the climate changing?
http://WermeNH.com/climate/science.html    ric@WermeNH.com