[Ips-whfpr] IPS Weekly Prop. Report (22 December 04)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 22/0200Z DECEMBER 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (15 DECEMBER - 21 DECEMBER)
Date   T index   Conditions        
15 Dec   42      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
   Northern Australian Region:
      Enhanced by 20% during local day,
      Enhanced by 15% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.

16 Dec   45      Normal            
MUFS:
   Equatorial PNG Region:
     Near predicted monthly values.
  Northern Australian Region:
     Near predicted monthly values.
  Southern Australian and New Zealand Region:
     Mostly near predicted monthly values,
     Depressed by 30% after local dawn.
  Antarctic Region (Casey/Scott Base):
     Near predicted monthly values over the UT day.

17 Dec   47      Normal            
MUFS:
   Equatorial PNG Region:
      Mostly near predicted monthly values,
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 30% during local night.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.

18 Dec   36      Fair-normal       
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
   Northern Australian Region:
      Depressed 15% to near predicted monthly values.
   Southern Australian and New Zealand Region:
      Depressed 15% to near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.

19 Dec   47      Normal            
MUFS:
   Equatorial PNG Region:
     Near predicted monthly values during local day,
     Enhanced by 25% during local night.
  Northern Australian Region:
     Enhanced by 15% during local day,
     Enhanced by 25% during local night.
  Southern Australian and New Zealand Region:
     Near predicted monthly values.
  Antarctic Region (Casey/Scott Base):
     Near predicted monthly values over the UT day.

20 Dec   54      Normal            
MUFS:
   Equatorial PNG Region:
     Near predicted monthly values during local day,
     Enhanced by 25% during local night.
     Depressed by 20% after local dawn.
  Northern Australian Region:
     Near predicted monthly values during local day,
     Enhanced by 20% during local night.
  Southern Australian and New Zealand Region:
     Mostly near predicted monthly values,
  Antarctic Region (Casey/Scott Base):
     Near predicted monthly values over the UT day.

21 Dec   53      Normal            
MUFS:
   Equatorial PNG Region:
     Mostly near predicted monthly values,
     Depressed by 35% after local dawn.
  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.

Predicted Monthly T index for December:  35
2. FORECAST (22 DECEMBER - 28 DECEMBER) 
MUFS: depressed 15% 22-23 Dec after local dawn, 
      otherwise MUFs near normal. 
Propagation conditions: Fair 22-23 Dec, otherwise normal. 
			SWFs possible later in week.
			
T index:   40

3. OUTLOOK (29 DECEMBER - 28 JANUARY)
Degraded HF propagation conditions possible:
02-Jan to 04-Jan, and 27-Jan.

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->
Glossary on Solar Terrestrial Terms.


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