[Ips-whfpr] IPS Weekly Prop. Report (16 September 09)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 16/0200Z SEPTEMBER 2009 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (09 SEPTEMBER - 15 SEPTEMBER)
Date   T index   Conditions        
09 Sep   -6      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values to depressed by 15% during
      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):
      Near predicted monthly values over the UT day with
      periods of degradations.

10 Sep  -10      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day. Near
      predicted monthly values to depressed by 30% during
      local night.
   Northern Australian Region:
      Near predicted montly values to depressed by 15% during
      local day. Depressed 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.

11 Sep   -4      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Near predicted monthly values 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.

12 Sep   -7      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Northern Australian Region:
      Near predicted montly values to depressed by 15% during
      local day. Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

13 Sep   -4      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values to depressed by 
      20% during local day.
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 35% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

14 Sep   -3      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Mostly 15-30% depressed at Niue. At Vanimo, near predicted
      monthly values 00-05 UT then 15 to 40% depressed.
   Northern Australian Region:
      Mostly near predicted monthly values with enhancements
      to 30% 12-20 UT. No Townsville data.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted montly values to 03 UT. No data
      after 03 UT.

15 Sep   -1      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values at Niue with depressions
      to 25% 00-02 UT and enhancements to 40% 07-11 UT.
      Near predicted monthly values to 05 UT at Vanimo with
      15-30% depressions 06-12 UT and 60% depressions 13-14
      UT; no data after 15 UT.
   Northern Australian Region:
      Near predicted monthly values. Depressions to 30% at
      Darwin 03-05 and 15-16 UT. No data for Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with enhancements to 60%
      around 12-20 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values at Scott Base. No data
      for Casey, Macquarie Is. and Mawson.

Predicted Monthly T index for September:   0
2. FORECAST (16 SEPTEMBER - 22 SEPTEMBER) 
MUFS: near predicted monthly values.
Propagation conditions: normal although low latitudes may experience
   periods of depressions. No SWFs.
T index:   0

3. OUTLOOK (23 SEPTEMBER - 23 OCTOBER)
Degraded HF propagation conditions possible: no signficant 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
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