[Ips-whfpr] IPS Weekly Prop. Report (28 August 13) issued 0301 UT on 28 Aug 2013

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED ON 28 AUGUST 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 AUGUST - 27 AUGUST)
Date   T index   Conditions        
21 Aug   86      Normal            
MUFS:
   Cocos Island Region:
      Enhanced to 50% during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Enhanced by 30% during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Briefly enhanced to 40% during local day.
      Depressed by 20% during local night.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mildly enhanced at times over the UT day but 
      with extended periods of weak ionosphere.

22 Aug   85      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 20-40% during local day.
      Depressed by 30% during local night.
   Niue Island Region:
      Variable enhancements/depressions to 15% local day.
      Depressed by 15% 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):
      Extended periods of weak ionosphere over the UT day.

23 Aug  102      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Depressed by 15% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Enhanced by 25%. 
      Near predicted monthly values around local dawn.
      Sporadic-E 15-18UT at Darwin.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day
      with extended periods of weak ionisation.

24 Aug   96      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 15-40% during local day.
      Depressed by 20% before local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
      Spread-F observed 10-17UT.
   Northern Australian Region:
      Near predicted monthly values.
      Darwin enhanced 20% local day, enhanced 30% local 
      evening, depressed 20% before local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mildly enhanced to near predicted monthly values 
      with periods of weak ionisation.

25 Aug   86      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 40% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      Enhanced by 30% 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.

26 Aug   76      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values 00-09 UT. Depressed 25%
      22-23 UT. No data at other times.
   Niue Island Region:
      Near predicted monthly values. A 20% depression
      at 17 UT.
   Northern Australian Region:
      Mostly near predicted monthly values. 
      Depressed 20% at Darwin 05 and 21 UT.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values. Depressions
      to 15% 05-08 UT at some eastern locations. Depression to
      35% at 22 UT and spread F 15-22 UT at Perth.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 15% depressed.

27 Aug   82      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 45% during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      No data available 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.

Predicted Monthly T index for August:  72

2. FORECAST (28 AUGUST - 03 SEPTEMBER) 
MUFS: MUFs near predicted monthly values.

Propagation conditions: Normal. No SWFs.

T index: 72

3. OUTLOOK (04 SEPTEMBER - 04 OCTOBER)
Degraded HF propagation conditions possible:
12-13 Sep,  17-18 Sep

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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