[Ips-dhfpr] IPS Daily HF Prop Report - 24 August 11

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 24/2330Z AUGUST 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (24 AUGUST) 
Date   T index  Conditions    
24 Aug    56    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 20% during local day,
      Depressed by 30% during local night.
      Depressed by 25% after local dawn.
   Niue Island Region:
      Depressed by 15% during local day,
      Enhanced by 30% during local night.
   Northern Australian Region:
      Depressed by 15% during local day,
      Depressed by 25% 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/Davis/Mawson):
      Depressed by 30% over the UT day.

PCA Event : No event.

Predicted Monthly T index for August:  59
2. FORECAST (25 AUGUST - 27 AUGUST)
Date   T index  Conditions       MUFs                              
25 Aug    55    Normal           Near predicted monthly values 
26 Aug    55    Normal           Near predicted monthly values     
27 Aug    45    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%    
COMMENT: Variable HF conditions observed over the last 24 hours 
for the Australian/NZ region. Depressed MUFs of ~20% observed 
over Equatorial regions during local day and night. Northern 
Australian regions also experienced depressed MUFs during local 
day and night. IPS Niue station an exception with enhanced MUFs 
during local night. Near predicted monthly values for Southern 
AUS/NZ regions with slightly enhanced conditions during local 
night and disturbed conditions for Antarctic regions. Mild MUF 
depressions are expected at times over the next 3 days for Northern 
Australian to Equatorial regions and near predicted monthly values 
expected for Southern AUS/NZ regions. Increased geomagnetic activity 
expected on 26Aug-27Aug, resulting in reduced ionospheric support 
for high to mid latitudes for 27Aug. 
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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.

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