[Ips-dhfpr] IPS Daily HF Prop Report - 09 February 03

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 09/2330Z FEBRUARY 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (09 FEBRUARY) 
Date   T index  Conditions    
09 Feb   126    Normal         

Flares: none.

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 65% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 30% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 15% 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 February:  88
2. FORECAST (10 FEBRUARY - 12 FEBRUARY)
Date   T index  Conditions       MUFs                              
10 Feb    85    Fair-normal      depressed 10 to 15%/near predicted 
                                 monthly values 
11 Feb   100    Normal           Near predicted monthly values     
12 Feb   100    Normal           Near predicted monthly values    
COMMENT: IPS HF Communications Warning 10 was issued on 9 February 
and is current for interval 10 February only. Ionospheric conditions 
have been variable over past few days, with some sites depressed 
(particularly after local dawn) and others enhanced. This variability 
is believed due to a coronal hole. Again after local dawn this 
morning, southern region MUfs are lower than normal. MUFs depression 
do not seem to persist and a general recovery is expected by 
4UT. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
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