[Ips-dhfpr] IPS Daily HF Prop Report - 18 August 03

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z AUGUST 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 AUGUST) 
Date   T index  Conditions    
18 Aug    96    Normal-poor    

Flares: none.

MUFs:
   Equatorial PNG Region:
      Enhanced greater than 25%.
   Northern Australian Region:
      Enhanced by 35% during local day,
      Enhanced by 65% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day,
      Near predicted monthly values during local night.
      Depressed by 40% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Depressed by 15-30%.


PCA Event : No event.

Predicted Monthly T index for August:  60
2. FORECAST (19 AUGUST - 21 AUGUST)
Date   T index  Conditions       MUFs                              
19 Aug    60    Poor-normal      Depressed 15-30% at times for 
                                 southern regions, with northern 
                                 regions mostly near predicted 
                                 monthly values. 
20 Aug    65    Normal-fair      depressed 5 to 15%/near predicted 
                                 monthly values     
21 Aug    75    Normal           5 to 10% above predicted monthly 
                                 values    
COMMENT: Significant depressions have been observed for southern 
regions during 18 August as the result of significant geomagnetic 
activity. Significant depressions are again possible for 19 August, 
however, HF conditions should be slowly returning to normal. 
Due to northern regions being significantly enhanced the observed 
Australian T-index does not reflect the significant depressions 
observed during 18 August. 

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