Re: LF: Geomagnetic Sudden Impulse

To:	<[email protected]>
Subject:	Re: LF: Geomagnetic Sudden Impulse
From:	"Markus Vester" <[email protected]>
Date:	Wed, 31 Oct 2012 22:43:04 +0100
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Yes, also on 100 kHz, and only on northerly stations.

73, Markus (DF6NM)

From: pws

Sent: Wednesday, October 31, 2012 7:34 PM

To: [email protected]

Subject: LF: Geomagnetic Sudden Impulse

Hi,

Got this from VLF-Group. May be it's of interest.

Today "NOAA Space Weather" reported:
---
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2012 Oct 31 1539 UTC
Deviation: 13 nT
Station: Boulder
---

I never observed such strong effects due to geomagnetic disturbances:

From Iceland:
http://www.df3lp.de/cgi-bin/fh/plot_channel.cgi?date=12-10-31&freq=57.4KHz
http://www.df3lp.de/cgi-bin/fh/plot_channel.cgi?date=12-10-31&freq=37.5KHz
And Norway:
http://www.df3lp.de/cgi-bin/ki/plot_channel.cgi?date=12-10-31&freq=16.4KHz

Here only northern propagation paths are affected by this event.
Please take a look at your "grabbers"!

?

73 de Peter,
df3lp, North Germany

LV_121031_1540.jpg
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