[Ips-whfpr] IPS Weekly Prop. Report (31 August 05)

rwc rwc at ips.gov.au
Wed Aug 31 12:08:23 EST 2005


SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 31/0200Z AUGUST 2005 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (24 AUGUST - 30 AUGUST)
Date   T index   Conditions        
24 Aug   30      Fair-poor         
MUFS:
   Equatorial PNG Region:
      Enhanced by 30% during local day,
      No data available during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
      Depressed by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Proton event in progress, increased absorption observed.

25 Aug   12      Fair-normal       
MUFS:
about 25% below predicted monthly values

26 Aug   22      Normal            
MUFS:
   Equatorial PNG Region:
     Enhanced by 20% during local day,
     Near predicted monthly values during local night.
  Northern Australian Region:
     Enhanced by 20% during local day,
     Depressed by 20% during local night.
  Southern Australian and New Zealand Region:
     Near predicted monthly values during local day,
     Depressed by 20% during local night.
  Antarctic Region (Casey/Scott Base):
     Near predicted monthly values over the UT day.

27 Aug   32      Normal            
MUFS:
   Equatorial PNG Region:
     Enhanced by 15% during local day,
     Depressed by 15% 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.

28 Aug   30      Normal            
MUFS:
near predicted monthly values

29 Aug   42      Normal            
MUFS:
slightly above predicted monthly values

30 Aug   37      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 20% during local day,
      Enhanced by 35% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
   Antarctic Region (Casey/Scott Base):
      Enhanced by 20% over the UT day.

Predicted Monthly T index for August:  26
2. FORECAST (31 AUGUST - 06 SEPTEMBER) 
MUFS: briefly depressed after local dawn 3 to 5 Sep
MUFs near predicted monthly values on other days.
Propagation conditions: Fair 03-Sep Fair 05-Sep , otherwise normal. No SWFs
T index:   35

3. OUTLOOK (07 SEPTEMBER - 07 OCTOBER)
Degraded HF propagation conditions possible:
12-Sep to 13-Sep,20-Sep to 21-Sep,30-Sep,02-Oct to 03-Oct,06-Oct.

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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Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060 

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