[Ips-whfpr] IPS Weekly Prop. Report (13 July 05)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 13/0200Z JULY 2005 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (06 JULY - 12 JULY)
Date   T index   Conditions        
06 Jul   56      Normal            
MUFS:
slightly above predicted monthly values

07 Jul   55      Normal            
MUFS:
slightly above predicted monthly values

08 Jul   51      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 25% 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):
      Near predicted monthly values over the UT day.

09 Jul   55      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 20% during local day,
      Enhanced by 30% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 30% during local night.
   Antarctic Region (Casey/Scott Base):
      Mostly near predicted monthly values.

10 Jul   56      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 25% during local day,
      Enhanced by 50% 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 with
      periods of significant degradations. 

11 Jul   38      Fair-normal       
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.

12 Jul   35      Fair-normal       
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 35% during local night.
   Northern Australian Region:
      Mostly 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.
      Spread F and absorption observed at some Antarctic 
      sites, second half of UT day.

Predicted Monthly T index for July:  27
2. FORECAST (13 JULY - 19 JULY) 
MUFS: briefly depressed after local dawn 14 Jul southern Aus region,
MUFs near predicted monthly values on other days.
Propagation conditions: Fair 13-Jul Fair 14-Jul , otherwise normal. 
SWfs probable early in week.
T index:   25

3. OUTLOOK (20 JULY - 19 AUGUST)
Degraded HF propagation conditions possible:
21-Jul,28-Jul,05-Aug to 06-Aug,08-Aug to 10-Aug,18-Aug.

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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