[Ips-dhfpr] IPS Daily HF Prop Report - 18 February 03

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z FEBRUARY 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 FEBRUARY) 
Date   T index  Conditions    
18 Feb    96    Fair-normal    

Flares: none.

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Slightly below predicted monthly values with extended
      periods of disturbance.


PCA Event : No event.

Predicted Monthly T index for February:  88
2. FORECAST (19 FEBRUARY - 21 FEBRUARY)
Date   T index  Conditions       MUFs                              
19 Feb   100    Normal-Fair      Enhanced 10-20% Equatorial/N. 
                                 Aus region. Near predicted monthly 
                                 values S. Aus/NZ/Antarctic region. 
20 Feb   100    Normal           Near predicted monthly values     
21 Feb   120    Normal           about 10% above predicted monthly 
                                 values    
COMMENT: Depressions of 10-20% observed during local day at mid-latitudes 
in E.Aus region. Extended periods of sporadic E and spread-F 
conditions and local disturbance at high latitudes, in association 
with coronal-hole induced geomagnetic disturbance. Coronal hole 
wind stream induced disturbance is likely to continue today. 

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