[Ips-dhfpr] IPS Daily HF Prop Report - 15 January 06

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 15/2330Z JANUARY 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (15 JANUARY) 
Date   T index  Conditions    
15 Jan   -13    Normal-fair    

Flares: none.

MUFs:
   Equatorial PNG/Niue Region:
      Depressed by 25% during local day,
      Depressed by 30% during local night.
   Northern Australian Region:
      Depressed by 20% during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 10% during the local day.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20% over the UT day.

PCA Event : No event.

Predicted Monthly T index for January:  18
2. FORECAST (16 JANUARY - 18 JANUARY)
Date   T index  Conditions       MUFs                              
16 Jan     4    Normal-fair      about 10% below predicted monthly 
                                 values 
17 Jan    15    Normal           Near predicted monthly values 
                                 / depressed to 10%.     
18 Jan    18    Normal           near predicted monthly values    

COMMENT: IPS HF Communications Warning 1 was issued on 14 January 
and is current for interval 15-16 January. The ionosphere again 
showed some large depressions in the N.Aus/PNG regions, up to 
30%. Depressions were also evident during the day at some mid-latitude 
and Southern Australian stations, and the Antarctic regions were 
depressed by up to 20%. Ionospheric conditions are expected to 
improve over the next 24 hours in the Australian and PNG regions, 
however the expected increase in geomagnetic activity may cause 
further ionospheric depressions at high latitudes. 

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For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Gloassary on Solar Terrestrial Terms.

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