[Ips-dhfpr] IPS Daily HF Prop Report - 16 February 12 issued 2330 UT on 16 Feb 2012

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 16/2330Z FEBRUARY 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (16 FEBRUARY) 
Date   T index  Conditions    
16 Feb    24    Poor           

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 40% during local day.
      Depressed by 30% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Depressed by 35% during local day.
      Depressed by 30% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 35% during local day.
      Depressed by 25% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20% over the UT day.

PCA Event : No event.

Predicted Monthly T index for February:  80
2. FORECAST (17 FEBRUARY - 19 FEBRUARY)
Date   T index  Conditions       MUFs                              
17 Feb    60    Normal-fair      About 15% below predicted monthly 
                                 values
18 Feb    70    Normal           Near predicted monthly values    
19 Feb    60    Normal           About 15% below predicted monthly 
                                 values   

COMMENT: MUFs have been depressed by 30% or more across the Australian 
region over the last day. East coast stations in southern Australia 
also experience blanketing E for much of the daylight hours. 
Conditions have improved towards the end of the UT day however 
depressions may continue to be experienced on the 17th, albeit 
at a less severe level of around 15%. MUFs should return to around 
predicted monthly values on the 18th. An expected coronal hole 
high speed wind stream may drive geomagnetic activity on the 
18th and 19th leading to more depressed MUFs on the 19th.

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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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