Message-ID: <001b01c15f1c$854fb140$9443073e@default>
From: "Alan Melia" <Alan.Melia@btinternet.com>
To: "LF-Group" <rsgb_lf_group@blacksheep.org>
Subject: LF: re Propagation
Date: Sat, 27 Oct 2001 19:29:11 +0100
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Hi Ko, an interesting read but it doesnt have a lot of bearing on 136kHz.
The LF signals do not penetrate the E-layer, and usually a 'wipe-out' out at
HF due to a flare means enhanced daytime propagation on 136k Hz..  This was
certainly the case at 1500z on Thursday.

The after effects of the last CME seem to have disipated quite quickly.
There was a daytime enhancement of 10-15dBs on Thursday, between 100z and
1300z . The absorption then shows a steady increase until the flare at
1500z. Friday was 'normal' with a small flare (M1.3) just after 1000z.  We
seem to be through the night-time absorption phase and into the rapid qsb
phase. So the night-time path may not be too bad until about Tuesday night
when the effects of the CME, expected tonight or early tomorrow , begins to
have effect.
(Forecast thanks to the invaluable data from Brian CT1DRP with a little help
from the lucky rabbit's paw)

If you have a clear sky (we did here an hour of so back) look out for aurora
around midnight tonight (Saturday)

Cheers de Alan G3NYK
alan.melia@btinternet.com