Daily Report
Geomagnetic Summary
Last updated 01 Dec 2004 23:46 UT
Geomagnetic field for Australian Region 01 Dec: Quiet to Unsettled
Estimated Indices 01 Dec : A K
Australian Region 12 3333 1322
Darwin 9 2332 1323
Townsville 11 2333 1323
Learmonth 12 3333 1322
Culgoora 8 2332 1212
Canberra - ---- ----
Hobart 8 2332 1222
Casey(Ant) 20 4-54 2222
Observed Regional daily pc3 Indices 01 DEC :
Townsville 8 (Quiet)
Learmonth 16 (Quiet)
Culgoora 45 (Unsettled)
Canberra NA
Hobart 118 (Major storm)
Pc3 pulsations are high frequency (10-45 second period) variations
of the Earths magnetic field. Daily pc3 indices are the daily sum
of 20 minute pc3 indices for that station.
Estimated AFr/Ap Indices 01 Dec : A
Fredericksburg 12
Planetary 15
Observed AFr/Ap Indices 30 Nov : A K
Fredericksburg 16
Planetary 15 3432 3333
Geomagnetic Forecast
Last updated 01 Dec 2004 23:46 UT
Date Ap Conditions
02 Dec 14 Unsettled to Active
03 Dec 10 Quiet to Unsettled
04 Dec 39 Active to Minor storm
COMMENT: The geomagnetic activity was quiet to minor storm over
the last 24 hours. An active to minor storm period occurred from
06-09UT. High latitudes showed an increase in activity in response
and also due to the bias toward negative Bz. Similar conditions
are expected to prevail for the next 2 days, with the chance
of isolated Active periods. Elevated solar wind stream parameters
and fluctuating Bz are due to the influence of the geoeffective
coronal hole whose effect appears to be diminishing.
73,
Thomas F. Giella, KN4LF
Retired Space & Atmospheric Weather Forecaster
Plant City, FL, USA
Grid Square EL87WX
Lat & Long 27 58 33.6397 N 82 09 52.4052 W
kn4lf@arrl.net
Propagation eGroup: http://lists.contesting.com/mailman/listinfo/propagation
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HCDX Propagation Channel:
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KN4LF Daily Solar Space Weather & Geomagnetic Data Archive:
http://www.kn4lf.com/kn4lf5.htm
KN4LF HF/MF Radio Propagation Theory Notes: http://www.kn4lf.com/kn4lf8.htm
KN4LF Amateur & SWL Radio History: http://www.kn4lf.com/index.htm
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