[Ips-dhfpr] IPS Daily HF Prop Report - 06 August 03

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 06/2330Z AUGUST 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (06 AUGUST) 
Date   T index  Conditions    
06 Aug    95    Fair-normal    

Flares: none.

MUFs:
   Equatorial PNG Region:
      Enhanced by 25% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Enhanced by 25% during local day,
      Enhanced by 45% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 35% during local day,
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


PCA Event : No event.

Predicted Monthly T index for August:  60
2. FORECAST (07 AUGUST - 09 AUGUST)
Date   T index  Conditions       MUFs                              
07 Aug    70    Normal-Fair      near predicted monthly values 
08 Aug    50    Fair             depressed 10 to 15%/near predicted 
                                 monthly values     
09 Aug    55    Fair             depressed 10 to 15%/near predicted 
                                 monthly values    
COMMENT: IPS HF Communications Warning 55 was issued on 5 August 
and is current for interval 7-9 August. Regional MUFs had a positive 
response to geomagnetic activity early in the UT day on 06 Aug. 
Further geomagnetic activity is expected over the next two days 
(induced by a solar coronal hole wind stream) which is expected 
to degrade HF communications quality for southern Aus/NZ region 
particularly during local night hours. MUFs appear near predicted 
monthly values after dawn this morning. However, some MUFs depressions 
may be experienced after local dawn over 8 and 9 Aug. Isolated
shortwave fadeouts possible on daylight HF circuits.

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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