[Ips-whfpr] IPS Weekly Prop. Report (14 September 11)

rwc rwc at ips.gov.au
Wed Sep 14 12:13:08 EST 2011


SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 14/0200Z SEPTEMBER 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (07 SEPTEMBER - 13 SEPTEMBER)
Date   T index   Conditions        
07 Sep   56      Normal            
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,
      Enhanced by 55% 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):
      Near predicted monthly values over the UT day.

08 Sep   56      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values during local day,
      Depressed by 15% 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:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

09 Sep   46      Normal-fair       
MUFS:
   Cocos Island Region:
      Depressed by 20% during local day,
      Depressed by 15% during local night.
   Niue Island Region:
      Near predicted monthly values during local day,
      Depressed by 15% 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:
      Mostly near predicted monthly values,
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

10 Sep   57      Normal-fair       
MUFS:
   Cocos Island Region:
      Depressed by 15% during local day,
      Depressed by 30% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
      Enhanced by 30% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day,
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

11 Sep   59      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day,
      Depressed by 35% during local night.
   Niue Island Region:
      Mostly near predicted monthly values,
      Enhanced by 40% after local dawn.
   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):
      Depressed by 20% over the UT day.

12 Sep   55      Normal-fair       
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day,
      Depressed by 35% during local night.
   Niue Island Region:
      Enhanced by 35% during local day,
      Near predicted monthly values during local night.
      Enhanced by 45% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

13 Sep   50      Normal-fair       
MUFS:
   Cocos Island Region:
      Enhanced by 15% during local day,
      Depressed by 35% during local night.
   Niue Island Region:
      Enhanced by 15% during local day,
      Near predicted monthly values during local night.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day,
      Depressed by 25% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20% over the UT day.

Predicted Monthly T index for September:  62
2. FORECAST (14 SEPTEMBER - 20 SEPTEMBER) 
MUFS: MUFs near predicted monthly values to 20% depressed.
Propagation conditions: Normal to Fair. No SWFs
T index:  62

3. OUTLOOK (21 SEPTEMBER - 21 OCTOBER)
Degraded HF propagation conditions possible:
09-11Oct.

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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