[Ips-dhfpr] IPS Daily HF Prop Report - 13 October 09

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 13/2330Z OCTOBER 2009 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (13 OCTOBER) 
Date   T index  Conditions    
13 Oct    -2    Normal         

Flares: none.

MUFs:
   Cocos Island/Niue Island Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Predicted Monthly T index for October:   1
2. FORECAST (14 OCTOBER - 16 OCTOBER)
Date   T index  Conditions       MUFs                              
14 Oct    -2    Normal           near predicted monthly values/depressed 
                                 5 to 10% 
15 Oct    -2    Normal           near predicted monthly values/depressed 
                                 5 to 10%     
16 Oct    -2    Normal           near predicted monthly values/depressed 
                                 5 to 10%    
COMMENT: HF frequencies are expected to remain mostly at normal 
to slightly reduced levels during daytime across Aus/NZ regions 
for the next 3 days with possible nighttime enhancements. Near-Equatorial 
regions show higher variability than mid-latitudes due to the 
equatorial fountain. Also the lack of magnetic activity indicates 
much of the low and mid latitude variability from monthly medians 
is being driven by neutral winds. No significant geomagnetic 
activity that would lift ionisation and frequencies expected 
for a week when a coronal hole will probably take effect. 
----------------------------------------------------------
For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

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