[Ips-dhfpr] IPS Daily HF Prop Report - 12 November 03

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 12/2330Z NOVEMBER 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (12 NOVEMBER) 
Date   T index  Conditions    
12 Nov    19    Fair           

Flares: none.

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night and after
      local dawn.
   Southern Australian and New Zealand Region:
      Depressed by 25% during local day,
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Extended periods of disturbance over the UT day.


PCA Event : No event.

Predicted Monthly T index for November:  52
2. FORECAST (13 NOVEMBER - 15 NOVEMBER)
Date   T index  Conditions       MUFs                              
13 Nov    15    Fair             depressed 10 to 20%/near predicted 
                                 monthly values 
14 Nov    20    Fair             depressed 5 to 15%/near predicted 
                                 monthly values     
15 Nov    20    Fair             depressed 5 to 15%/near predicted 
                                 monthly values    
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
PO Box 1386                       | WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060 

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