[Ips-dhfpr] IPS Daily HF Prop Report - 12 April 12 issued 2354 UT on 12 Apr 2012

rwc rwc at ips.gov.au
Fri Apr 13 09:54:17 EST 2012


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/12 APRIL 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (12 APRIL) 
Date   T index  Conditions    
12 Apr    69    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Depressed by 15% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Predicted Monthly T index for April:  81


2. FORECAST (13 APRIL - 15 APRIL)
Date   T index  Conditions       MUFs                              
13 Apr    60    Normal-fair      Depressed 20%/near predicted 
                                 monthly values
14 Apr    60    Normal-fair      Depressed 20%/near predicted 
                                 monthly values    
15 Apr    65    Normal-fair      Near predicted monthly values/depressed 
                                 5 to 15%   

COMMENT: MUFs were mostly normal today with periods of 
depressions at most locations. Minor to moderate MUF 
depressions may be observed from 13 to 14 April, especially 
at mid and high latitudes due to expected continued 
enhancements in geomagnetic activity levels during this period. 
HF conditions may return to mostly normal levels on 15 April 
with some possibility of minor depressions 
at mid and high latitudes on this day.

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

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