[Ips-dhfpr] IPS Daily HF Prop Report - 18 March 12 issued 2355 UT on 18 Mar 2012

Regional Warning Centre rwc at ips.gov.au
Mon Mar 19 10:55:25 EST 2012


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z MARCH 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 MARCH) 
Date   T index  Conditions    
18 Mar    55    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
         Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 30% 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:
      Depressed by 15% during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
     Poor ionospheric support over the UT day.

PCA Event : No event.

Predicted Monthly T index for March:  81


2. FORECAST (19 MARCH - 21 MARCH)
Date   T index  Conditions       MUFs                              
19 Mar    65    Normal-fair      About 20% below predicted monthly 
                                 values 
20 Mar    70    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%     
21 Mar    75    Normal-fair      Near predicted monthly values    

COMMENT: Night time depressed MUF periods observed in Equatorial/N 
Aus regions. Generally weak ionospheric support Antarctic region. 
Sporadic E and Spread F conditions were observed at times during 
18 March wich may have degraded HF conditions. Conditions are 
improving and MUFs should be depressed by at most 20% for the 
next 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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