
July 28th 06, 09:59 PM
posted to rec.radio.shortwave
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First recorded activity by RadioBanter: Jul 2006
Posts: 4,494
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Geomagnetic Minor Storm to continue (28 July 2006)
In article ,
dxAce wrote:
Telamon wrote:
In article ,
dxAce wrote:
Minor geomagnetic storm continues. Increased geomagnetic activity is
expected to continue for next 24 to 48 hours. Source is high speed solar
wind with Bz orientation southward, due to coronal hole, coupled with weak
shock of July 28, 2006. Current Kp index: 6. Current solar wind: 634 km/s
at 2.7 protons/cm3. On 2006 Jul 28 0748Z: Bz: -2.7 nT. Aurora Activity
Level was 8 at 0618 UTC.
Summary for last 24 hours: Space weather for the past 24 hours has been
moderate. Geomagnetic storms reaching the G2 level occurred. Forecast for
next 24 hours: Space weather for the next 24 hours is expected to be
minor. Geomagnetic storms reaching the G1 level are expected.
http://propagation.hfradio.org/
(NW7US, SWL mail list)
The space weather/propagation connection is still a mystery to me.
Sometimes propagation conditions follow the weather and sometimes it
does not. Yesterday when we were in the geomagnetic storm NZ and
Australia were putting big signals in here and I suspect that any over
the pole signals might have been degraded.
I expected Australia and NZ to sound poor but they were very good and
sounded like a local broadcaster a few miles down the road with over S9
levels.
That's primarily becaue those signals were most ikely not following a
trans-polar route but rather a trans-equatorial path.
In some instances solar storm conditions will actually cause trans-equatorial
path signals to be enhanced.
That seems to be the case.
--
Telamon
Ventura, California
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