[Ips-whfpr] IPS Weekly Prop. Report (21 March 12) issued 0212 UT on 21 Mar 2012

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 21/0200Z MARCH 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (14 MARCH - 20 MARCH)
Date   T index   Conditions        
14 Mar   76      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   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:
      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.

15 Mar   66      Normal-fair       
MUFS:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Depressed by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
      Depressed by 35% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Poor ionospheric support over the UT day.

16 Mar   38      Poor              
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 30% 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 25% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 40% during local day.
      Depressed by 35% during local night.
     Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Poor ionospheric support over the UT day.

17 Mar   48      Fair              
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.      
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Depressed by 20% during local day.
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 25% during local day.
      Depressed by 35% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Poor ionospheric support over the UT day.

18 Mar   55      Normal-fair       
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.

19 Mar   65      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Mostly near predicted monthly values.
   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.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

20 Mar   54      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% 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 25% during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

Predicted Monthly T index for March:  81

2. FORECAST (21 MARCH - 27 MARCH) 
MUFS: MUFs mostly near predicted monthly values. Overnight
      depressions to 20% possible 21-22 Mar.

Propagation conditions: Normal. No SWFs.

T index: 81

3. OUTLOOK (28 MARCH - 27 APRIL)
Degraded HF propagation conditions possible:
12-14 Apr

PLEASE NOTE:
Space weather conditions can frequently be determined by short 
timescale events that cannot be forecast a week in advance,
particularly at solar maximum.

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 
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