[Ips-dhfpr] IPS Daily HF Prop Report - 11 November 03

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 11/2330Z NOVEMBER 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (11 NOVEMBER) 
Date   T index  Conditions    
11 Nov    24    Fair-normal    

Flares    Max     Fadeout    Freq.  Sectors
 M1/SF    1351UT  possible   lower  European

MUFs:
   Equatorial PNG Region:
      Mostly near predicted monthly values,
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Southern Australian and New Zealand Region:
      Depressed 20% to near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Depressed by 25% over the UT day.
      Spread F observed.


PCA Event : No event.

Predicted Monthly T index for November:  52
2. FORECAST (12 NOVEMBER - 14 NOVEMBER)
Date   T index  Conditions       MUFs                              
12 Nov  10/60   Poor-Fair/normal depressed 10 to 20%/near predicted 
                                 monthly values 
13 Nov  25/60   Fair/normal      depressed 10 to 20%/near predicted 
                                 monthly values     
14 Nov  45/65   Fair/normal      depressed 5 to 15%/near predicted 
                                 monthly values    
Note:  left of slash is forecast for southern Aus/NZ region
       right of slash is forecast for Northern Aus region
COMMENT: IPS HF Communications Warning 84 was issued on 7 November 
and is current for interval 11-13 November. Depressed MUFs again 
observed since local dawn this morning for southern Aus/NZ region. 
Northern Aus region MUFS mostly near normal or only mildly depressed. 
Depression associated with geomagnetic activity induced by coronal 
hole high speed wind stream. Extended interval of lower than 
normal MUFs for southern Aus/NZ region probable over next few 
days. Depressed MUF conditions may ease slightly after 15 Nov. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
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Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au 
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