[Ips-whfpr] IPS Weekly Prop. Report (28 November 07)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 28/0200Z NOVEMBER 2007 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (21 NOVEMBER - 27 NOVEMBER)
Date   T index   Conditions        
21 Nov  -50      Poor-normal       
MUFS:
   Equatorial PNG/Niue Region:
      Depressed by 45% during local day,
      Depressed by 45% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 45% during local day,
      Depressed by 35% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 40% during local day,
      Depressed by 40% during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day with
      periods of depressions and degradations.

22 Nov  -50      Poor-fair         
MUFS:
   Equatorial PNG/Niue Region:
      Depressed by 25% during local day,
      Depressed by 45% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 40% during local day,
      Depressed by 35% during local night.
      Depressed by 30% after local dawn.
   Southern Australian and New Zealand Region:
      Depressed by 30% during local day,
      Depressed by 30% during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20 to 30% over the UT day with periods of
      degradations.

23 Nov  -44      Poor-normal       
MUFS:
   Equatorial PNG/Niue Region:
      Depressed by 15% during local day,
      Depressed by 30% during local night.
   Northern Australian Region:
      Depressed by 35% during local day,
      Depressed by 25% during local night.
      Depressed by 25% after local dawn.
   Southern Australian and New Zealand Region:
      Depressed by 25% during local day,
      Depressed by 25% during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 10 to 40 % with periods of degradations.

24 Nov  -44      Poor-normal       
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 30% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 30% during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 25% during local day,
      Depressed by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 10 to 40% with periods of degradations. 

25 Nov  -39      Fair-normal       
MUFS:
   Equatorial PNG/Niue Region:
      Depressed by 15% during local day,
      Depressed by 25% during local night.
   Northern Australian Region:
      Depressed by 30% during local day,
      Depressed by 15% during local night.
      Depressed by 25% after local dawn.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day,
      Depressed by 20% during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 10 to 30% with periods of degradations.

26 Nov  -32      Fair-normal       
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Northern Australian Region:
      Depressed by 20% over the UT day.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day,
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

27 Nov  -34      Fair-normal       
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 30% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
      Depressed by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

Predicted Monthly T index for November:  11
2. FORECAST (28 NOVEMBER - 04 DECEMBER) 
MUFS: Depressed MUFs ranging between 10%-30%, 
with otherwise near predicted monthly values.
Propagation conditions: Fair to Normal. No SWFs
T index:  -10
COMMENT: IPS HF Communications Warning 36 was issued on
28 November and is current for interval  28-30 November. 
3. OUTLOOK (05 DECEMBER - 04 JANUARY)
Degraded HF propagation conditions possible:
17-Dec to 19-Dec.

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.


IPS Radio and Space Services        email: asfc at ips.gov.au
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