[Ips-dhfpr] IPS Daily HF Prop Report - 07 March 12 issued 2356 UT on 07 Mar 2012

rwc rwc at ips.gov.au
Thu Mar 8 10:56:01 EST 2012


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 07/2330Z MARCH 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (07 MARCH) 
Date   T index  Conditions    
07 Mar    88    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.0 06/2254UT  possible   lower  West Pacific
  X1.1    0011UT  probable   all    West Pacific
  X5.4    0024UT  probable   all    West Pacific

MUFs:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Enhanced by 30% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
      Depressed by 25% after local dawn.
      Spread-F observed Hobart.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Poor ionospheric support over the UT day.
      Proton event in progress, increased absorption observed
      Mar 07 and after local dawn Mar 08.

PCA Event : 10Mev Proton/PCA Event Began 07 03 2012 0530UT and is in progress

Predicted Monthly T index for March:  81


2. FORECAST (08 MARCH - 10 MARCH)
Date   T index  Conditions       MUFs                              
08 Mar    60    Fair             Mostly near predicated monthly 
                                 values. Depressions to 20% possible 
                                 at times. 
09 Mar    50    Fair             Near predicted values. Depressions 
                                 to 20% possible at times.     
10 Mar    70    Normal           Near predicted monthly values    

COMMENT: Highly variable enhancements / depressions observed 
Equatorial region. Widespread depressions after local dawn Aus 
region. Weak ionosphere Antarctic region. Expect major geomagnetic 
disturbances days one and two. Little ionospheric support expected 
Antarctic region days one and two. Disturbances possibly extending 
at times to S Aus region. Variable conditions likely Equatorial 
/ N Aus regions. 

----------------------------------------------------------
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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