[Ips-dhfpr] IPS Daily HF Prop Report - 28 April 06

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 28/2330Z APRIL 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (28 APRIL) 
Date   T index  Conditions    
28 Apr    39    Normal         

Flares: none.

MUFs:
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 25% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 30% during local night.
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 10% during local day 
      Enhanced by 15% during local night.

PCA Event : No event.

Predicted Monthly T index for April:  16
2. FORECAST (29 APRIL - 01 MAY)
Date   T index  Conditions       MUFs                              
29 Apr    40    Normal           10 to 25% above predicted monthly 
                                 values 
30 Apr    41    Normal           10 to 25% above predicted monthly 
                                 values     
01 May    42    Normal           10 to 25% above predicted monthly 
                                 values    

COMMENT: Mostly normal HF conditions observed over the UT day. 
MUFs generally well above predicted monthly values. Some high 
latitude stations observed daytime depressions depending on location, 
likely related to solar wind activity. Mostly normal HF conditions 
expected for the next three days with a continued strengthening 
of the ionosphere due to extra ionising solar radiation from 
active regions 875 and 876. MUFs generally above predicted monthly 
values by 10-25%. 

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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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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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