[Ips-dhfpr] IPS Daily HF Prop Report - 05 November 07

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 05/2330Z NOVEMBER 2007 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (05 NOVEMBER) 
Date   T index  Conditions    
05 Nov   -13    Normal-fair    

Flares: none.

MUFs:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 20% 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:
      Mostly near predicted monthly values,
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Predicted Monthly T index for November:  11
2. FORECAST (06 NOVEMBER - 08 NOVEMBER)
Date   T index  Conditions       MUFs                              
06 Nov   -12    Normal-fair      Near predicted monthly values 
                                 to 20% depressed. 
07 Nov   -10    Normal-fair      Near predicted monthly values 
                                 to 10-15% depressed.     
08 Nov   -10    Normal-fair      Near predicted monthly values 
                                 to 10-15% depressed.    
COMMENT: IPS HF Communications Warning 27 was issued on 4 November 
and is current for interval 5-7 November. Depressions in Maximum 
Usable Frequencies (MUFs) observed across Pacific, Equatorial/PNG 
and Australian regions due to lack of solar ionising EUV and 
active regions. Slightly eased from previous days as geomagnetic 
conditions quieten after coronal hole passed. Depressions compared 
with predicted monthly averages are expected to continue for 
the next 2 days at least. Spread-F observed across wide regions, 
particularly pre-dawn. 
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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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