[Ips-dhfpr] IPS Daily HF Prop Report - 20 February 11

rwc rwc at ips.gov.au
Mon Feb 21 10:43:55 EST 2011


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 20/2330Z FEBRUARY 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 FEBRUARY) 
Date   T index  Conditions    
20 Feb    22    Normal-fair    

Flares: none.

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

PCA Event : No event.

Predicted Monthly T index for February:  38
2. FORECAST (21 FEBRUARY - 23 FEBRUARY)
Date   T index  Conditions       MUFs                              
21 Feb    20    Normal-fair      depressed 10 to 20%/near predicted 
                                 monthly values 
22 Feb    20    Normal-fair      depressed 10 to 20%/near predicted 
                                 monthly values     
23 Feb    20    Normal-fair      depressed 10 to 20%/near predicted 
                                 monthly values    
COMMENT: Variable ionospheric support observed over the Australian/NZ 
region during the last 24 hours, with enhanced MUFs for Equatorial 
regions and near predicted monthly values for Northern AUS regions. 
Depressed MUFs for Southern AUS/NZ and Antarctic regions during 
local day. Continued MUF depressions of 10%-20% for Southern 
AUS/NZ and Antarctic regions for the next 3 days with mostly 
normal ionospheric support for Northern AUS/Equatorial regions 
with possible depressed periods. 
----------------------------------------------------------
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
PO Box 1386                         WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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