[Ips-whfpr] IPS Weekly Prop. Report (13 July 11)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 13/0200Z JULY 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (06 JULY - 12 JULY)
Date   T index   Conditions        
06 Jul   30      Normal-fair       
MUFS:
06-Jul
Cocos Island Region:
  Enhanced by 15% during local day,
  Depressed by 25% during local night.
  Depressed by 20% after local dawn.
Niue Island Region:
  Depressed by 20% during local day,
  Depressed by 25% during local night.
Northern Australian Region:
  Depressed by 20% during local day,
  Depressed by 35% during local night.
  Depressed by 20% after local dawn.
Southern Australian and New Zealand Region:
  Depressed by 20% during local day,
  Depressed by 25% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
  Depressed by 35% over the UT day.

07 Jul   26      Normal-fair       
MUFS:
07-Jul
Cocos Island Region:
  No data available during local day,
  Depressed by 25% during local night.
  Depressed by 20% after local dawn.
Niue Island Region:
  Depressed by 15% during local day,
  Depressed by 35% during local night.
Northern Australian Region:
  Depressed by 20% during local day,
  Depressed by 30% 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 30% over the UT day.

08 Jul   28      Fair-normal       
MUFS:
08-Jul
Cocos Island Region:
  Depressed by 20% during local day,
  Depressed by 35% during local night.
  Depressed by 25% after local dawn.
Niue Island Region:
  Depressed by 20% during local day,
  Depressed by 20% during local night.
Northern Australian Region:
  Depressed by 20% during local day,
  Depressed by 35% 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 25% over the UT day.

09 Jul   33      Normal-fair       
MUFS:
09-Jul
Cocos Island Region:
  Near predicted monthly values during local day,
  Depressed by 30% during local night.
Niue Island Region:
  Depressed by 25% during local day,
  Depressed by 25% during local night.
Northern Australian Region:
  Depressed by 20% during local day,
  Depressed by 25% during local night.
Southern Australian and New Zealand Region:
  Depressed by 15% during local day,
  Near predicted monthly values during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
  Depressed by 30% over the UT day.

10 Jul   39      Normal-fair       
MUFS:
   Cocos Island Region:
      Depressed by 25% during local day,
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
   Northern Australian Region:
      Depressed by 20%.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 30% over the UT day.

11 Jul   42      Normal-fair       
MUFS:
   Cocos Island Region:
      Near predicted monthly values to Depressed by 25%,
      Depressed by 30% after local dawn.
   Niue Island Region:
      Depressed by 20%. 
   Northern Australian Region:
      Depressed by up to 30%. 
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 25% over the UT day.

12 Jul   35      Normal-fair       
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day,
      Depressed by 35% during local night.
   Niue Island Region:
      Depressed by 20%.
   Northern Australian Region:
      Depressed between 15-30%. 
   Southern Australian and New Zealand Region:
      Depressed by up to 20% during local day,
      Near monthly values during local night. 
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 30% over the UT day.

Predicted Monthly T index for July:  56
2. FORECAST (13 JULY - 19 JULY) 
MUFS: MUFs near predicted monthly values to depressed up 
to 30% at time.
Propagation conditions: Normal-Fair. No SWFs
T index:  56

3. OUTLOOK (20 JULY - 19 AUGUST)
Degraded HF propagation conditions possible:
20-22 July.

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
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