[Ips-dhfpr] IPS Daily HF Prop Report - 15 November 03

rwc rwc at ips.gov.au
Sun Nov 16 10:58:01 EST 2003


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 15/2330Z NOVEMBER 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (15 NOVEMBER) 
Date   T index  Conditions    
15 Nov    35    Fair           

Flares: none.

MUFs:
   Equatorial PNG Region:
      Slightly below predicted monthly values during 
      local day, briefly enhanced by 40% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 45% during local night.
      Depressed by 25% after local dawn.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day,
      Near predicted monthly values during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Extended periods of degradation over the UT day. 


PCA Event : No event.

Predicted Monthly T index for November:  52
2. FORECAST (16 NOVEMBER - 18 NOVEMBER)
Date   T index  Conditions       MUFs                              
16 Nov    15    Fair             10 to 30% below predicted monthly 
                                 values 
17 Nov    25    Fair             10 to 20% below predicted monthly 
                                 values     
18 Nov    35    Fair             near predicted monthly values    
COMMENT: Persistent and occasionally intense sporadic-E conditions 
observed at all latitudes. Night time spread-F conditions observed 
equatorial and polar latitudes. Ocasionally persistent slant-E 
conditions observed polar cusp and polar cap stations. Persistent, 
severe ionospheric depressions observed at low to mid latitudes 
after local dawn and during local day, with briefly enhanced 
propagation conditions during local night. Expect continuing 
degraded HF conditions due to coronal hole induced geomagnetic 
activity. Increased absorption observed around local mid-day 
in Antarctic regions. 

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Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au 
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