[Ips-dhfpr] IPS Daily HF Prop Report - 14 November 03

rwc rwc at ips.gov.au
Sat Nov 15 10:28:15 EST 2003


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 14/2330Z NOVEMBER 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (14 NOVEMBER) 
Date   T index  Conditions    
14 Nov    -1    Fair           

Flares: none.

MUFs:
   Equatorial PNG Region:
      Depressed by 10 to 20% during local day,
      Depressed by 35% during local night.
   Northern Australian Region:
      Depressed by 45% during local day,
      Depressed by 20% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 30% during local day,
      Near predicted monthly values during local night.
      Depressed by 20% 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 (15 NOVEMBER - 17 NOVEMBER)
Date   T index  Conditions       MUFs                              
15 Nov    30    Fair             10 to 20% below predicted monthly 
                                 values 
16 Nov    35    Fair             10 to 20% below predicted monthly 
                                 values     
17 Nov    45    Normal-Fair      near predicted monthly values    
COMMENT: IPS HF Communications Warning 86 was issued on 14 November 
and is current for interval 14-15 November. Persistent and occasionally 
intense sporadic-E conditions observed at all latitudes. Persistent, 
severe ionospheric depressions observed at low to mid latitudes. 
Mid latitudes showed signs of recovery overnight, with further 
depressions around local dawn. Equatorial/Northern Aus HF conditions 
should be slightly better today. High latitudes can expect continuing 
degraded HF conditions due to coronal hole induced geomagnetic 
activity. Increased absorption observed around local mid-day 
in Antarctic regions. 

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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