[Ips-dhfpr] IPS Daily HF Prop Report - 27 August 11

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 27/2330Z AUGUST 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (27 AUGUST) 
Date   T index  Conditions    
27 Aug    55    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day,
      Depressed by 35% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day,
      Enhanced by 35% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 25% over the UT day.

PCA Event : No event.

Predicted Monthly T index for August:  59
2. FORECAST (28 AUGUST - 30 AUGUST)
Date   T index  Conditions       MUFs                              
28 Aug    50    Normal           Near predicted monthly values 
29 Aug    40    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%     
30 Aug    45    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%    
COMMENT: MUFs near predicted monthly values for Equatorial regions 
during local day and depressed by ~25% for local night. Northern 
Australian regions experienced depressed MUFs during local night 
with IPS Niue station experienced enhanced conditions. Near predicted 
monthly values for Southern AUS/NZ regions and disturbed conditions 
for Antarctic regions in the latter half of the UT day. Similar 
conditions are expected over the next 24 hours with possible 
increase in geomagnetic activity within this time resulting in 
reduced ionospheric support for high to mid latitudes for 29Aug-30Aug. 
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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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