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

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 04/0200Z AUGUST 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (28 JULY - 03 AUGUST)
Date   T index   Conditions        
28 Jul   23      Fair-normal       
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 15% 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):
      Depressed 30% first half UT day,
      Enhanced by 45% later half the UT day.
      Sporadic E blanketing, and absorption 
      observed.


29 Jul   28      Fair-normal       
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values 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 during local day,
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


30 Jul   25      Normal            
MUFS:
   Equatorial PNG Region:
      Variable overnight depressions, otherwise
      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 with localised
      degradations.


31 Jul   33      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 45% 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):
      Mostly near predicted monthly values with isolated
      localised disturbances. 


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


02 Aug   36      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 30% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values to enhanced by 30% over 
      the UT day.


03 Aug   43      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 30% 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 during local day,
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values, with some Spread F
      observed.


Predicted Monthly T index for August:  37
2. FORECAST (04 AUGUST - 10 AUGUST) 
MUFS: Near predicted monthly values.
Propagation conditions: Normal. increased chance of
SWFs in second half of forecast period.
T index:   30

3. OUTLOOK (11 AUGUST - 10 SEPTEMBER)
Degraded HF propagation conditions possible:
21-Aug to 23-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->
Gloassary on Solar Terrestrial Terms.


IPS Radio and Space Services      | email: asfc at ips.gov.au
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tel: +61 2 9213 8010              | fax: +61 2 9213 8060 

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