[Ips-dhfpr] IPS Daily HF Prop Report - 05 August 11

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 05/2330Z AUGUST 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (05 AUGUST) 
Date   T index  Conditions    
05 Aug    44    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 20% during local day,
      Near predicted monthly values during local night.
      Sporadic-E observed after local dawn.
   Niue Island Region:
      Depressed by 20% during local day,
      Depressed by 15% during local night.
   Northern Australian Region:
      Depressed by 20% during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
      Spread-F observed local afternoon, Brisbane, Hobart, Perth. 
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.
      Proton event in progress, increased absorption observed.

PCA Event : 10Mev Proton/PCA Event Began 04 08 2011 1635UT and is in progress

Predicted Monthly T index for August:  59
2. FORECAST (06 AUGUST - 08 AUGUST)
Date   T index  Conditions       MUFs                              
06 Aug    30    Fair-poor        10 to 30% below predicted monthly 
                                 values
07 Aug    30    Normal-fair      10 to 30% below predicted monthly 
                                 values    
08 Aug    45    Normal           10 to 20% below predicted monthly 
                                 values   
COMMENT: Significant MUF depressions possible due to geomagnetic 
disturbance following recent solar flare activity. SWF's possible. 
Expect poor ionospheric support Antarctic region days one and 
two.
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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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