[Ips-wsgr] IPS Weekly Solar and Geophysical Report (28 January 05)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 28 JANUARY 2005, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (21 JANUARY - 27 JANUARY)
Date     21    22    23    24    25    26    27
10cm    114   102    96    95    94    89    87
AFr      30    23    12     5     2     0 (  2)
Aaus     36    24    15     9     6     3 (  3)
T        55    -6    19    34    52    39    43

Solar:        Solar flare activity
Geomagnetic:  Geomagnetic activity observed for Australian Region.
Frequencies:  Australian Ionospheric F2 critical frequencies

21 Jan 
Solar:        moderate, with an M1 at 1016UT, and an M1 at 1355UT
Geomagnetic:  Quiet to Major Storm 
A strong (102nT) impulse was observed in the IPS magnetometer data at 
1711UT on 21 Jan.
Frequencies:  
   Equatorial PNG Region:
     No data available during local day,
     Enhanced by 50% during local night.
     Depressed by 25% after local dawn.
  Northern Australian Region:
     Near predicted monthly values during local day,
     Enhanced by 30% during local night.
  Southern Australian and New Zealand Region:
     Near predicted monthly values.
  Antarctic Region (Casey/Scott Base):
     Proton event in progress, increased absorption observed.

22 Jan 
Solar:        very low
Geomagnetic:  Unsettled to Minor Storm 
Frequencies:  
   Equatorial PNG Region:
     No data available during local day,
     Near predicted monthly values during local night.
  Northern Australian Region:
     Depressed by 15% during local day,
     Depressed by 20% during local night.
  Southern Australian and New Zealand Region:
     Depressed by 30% during local day,
     Near predicted monthly values during local night.
     Depressed by 20% after local dawn.
  Antarctic Region (Casey/Scott Base):
     No data available over the UT day.

23 Jan 
Solar:        very low
Geomagnetic:  Quiet to Active 
Frequencies:  
   Equatorial PNG Region:
     No data available during local day,
     Enhanced by 45% during local night.
  Northern Australian Region:
     Depressed by 20% during local day,
     Near predicted monthly values during local night.
  Southern Australian and New Zealand Region:
     Depressed by 15% during local day,
     Near predicted monthly values during local night.
  Antarctic Region (Casey/Scott Base):
     Near predicted monthly values over the UT day.

24 Jan 
Solar:        very low
Geomagnetic:  Quiet to Unsettled 
Frequencies:  
   Equatorial PNG Region:
     No data available during local day,
     No data available during local night.
  Northern Australian Region:
     No data available during local day,
     No data available during local night.
  Southern Australian and New Zealand Region:
     No data available during local day,
     No data available during local night.
  Antarctic Region (Casey/Scott Base):
     Depressed by 20% over the UT day.

25 Jan 
Solar:        very low
Geomagnetic:  Quiet to Unsettled 
Frequencies:  
   Equatorial PNG Region:
     Enhanced by 15% during local day,
     Enhanced by 20% during local night.
  Northern Australian Region:
     Near predicted monthly values.
  Southern Australian and New Zealand Region:
     Near predicted monthly values.
  Antarctic Region (Casey/Scott Base):
     Near predicted monthly values over the UT day.

26 Jan 
Solar:        very low
Geomagnetic:  Quiet 
Frequencies:  
   Equatorial PNG Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.

27 Jan 
Solar:        very low
Geomagnetic:  Quiet 
Frequencies:  
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      No data available during local night.
   Northern Australian Region:
      Mostly near predicted monthly values,
      Depressed by 25% after local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.

 
2. FORECAST (28 JANUARY - 03 FEBRUARY)
Solar: Low

Geomagnetic:  Mostly Quiet with active conditions expected 29-30 Jan
	      due to a coronal hole wind stream. Isolated minor
	      storm periods possible within this period.

Frequencies:  depressed 15 to 20% on 30-Jan, otherwise nnormal. No 
	      shortwave fadeouts expected.

PLEASE NOTE: 
At this time of the solar cycle, space weather conditions
are frequently determined by short timescale events, not
able to be forecasted a week in advance.

For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Gloassary on Solar Terrestrial Terms.


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