[Ips-whfpr] IPS Weekly Prop. Report (12 December 12) issued 0126 UT on 12 Dec 2012

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED ON 12 DECEMBER 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (05 DECEMBER - 11 DECEMBER)
Date   T index   Conditions        
05 Dec   83      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 15%.
      Depressed by 15% after local dawn.
   Niue Island Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 20% around local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

06 Dec   97      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Enhanced by 20% during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

07 Dec   84      Normal            
MUFS:
   Cocos Island Region:
      Mildly depressed local day.
      Depressed 15% after local dawn.
   Niue Island Region:
      Mostly near predicted monthly values.
      Depressed by 20-30% after local dawn.
   Northern Australian Region:
      Darwin depressed 15% local day. 
      Townsville depressed 15% after local dawn.
      Otherwise near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to mildly
      enhanced over the UT day.

08 Dec   80      Normal            
MUFS:
   Cocos Island Region:
      Mostly near predicted monthly values.
   Niue Island Region:
      Depressed by 25% during local day.
      No data available during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Normal to enhanced by 20% over the UT day.

09 Dec   98      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      No data available.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
      Periods of blanketing sporadic-E local evening
      and around local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

10 Dec   86      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values.
      Darwin depressed 30% around local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      with isolated periods of strong sporadic-E.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

11 Dec   91      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 15% over the UT day.

Predicted Monthly T index for December:  81

2. FORECAST (12 DECEMBER - 18 DECEMBER) 
MUFS: MUFs near predicted monthly values.

Propagation conditions: Normal. No SWFs.

T index: 81

3. OUTLOOK (19 DECEMBER - 18 JANUARY)
Degraded HF propagation conditions possible:
No significant degraded periods expected.

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 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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