[Ips-dhfpr] IPS Daily HF Prop Report - 21 March 11

rwc rwc at ips.gov.au
Tue Mar 22 10:51:47 EST 2011


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 21/2330Z MARCH 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 MARCH) 
Date   T index  Conditions    
21 Mar    47    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 50% during local night.
      Near predicted monthly values during local day.
   Niue Island Region:
      Enhanced by 20% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20% over the UT day.
      Proton event in progress, increased absorption observed.

PCA Event : 10Mev Proton/PCA Event Began 21 03 2011 1955UT and is in progress

Predicted Monthly T index for March:  40
2. FORECAST (22 MARCH - 24 MARCH)
Date   T index  Conditions       MUFs                              
22 Mar    45    Normal           near predicted monthly values 
23 Mar    45    Normal           near predicted monthly values     
24 Mar    45    Normal           near predicted monthly values    
COMMENT: Mostly normal ionospheric support observed for Northern 
AUS and Southern AUS/NZ regions over the last 24 hours. Enhanced 
MUFs ~20% for Equatorial regions. Poor ionospheric support for 
Antarctic regions due to current proton event. Continued enhanced 
conditions for Equatorial regions expected for the next 2-3 days 
with mostly normal HF conditions for mid latitudes. Poor HF conditions 
expected for Antarctic regions for the next 24 hours with return 
to near monthly normal values on 23Mar-24Mar. 
----------------------------------------------------------
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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