[Ips-whfpr] IPS Weekly Prop. Report (24 October 07)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 24/0200Z OCTOBER 2007 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (17 OCTOBER - 23 OCTOBER)
Date   T index   Conditions        
17 Oct  -12      Normal-fair       
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 35% during local night.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 25% 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.

18 Oct   -3      Normal-fair       
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
      Depressed by 30% after local dawn.
   Northern Australian Region:
      Depressed by 25% 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 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

19 Oct   -9      Normal-poor       
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Northern Australian Region:
      Depressed by 25% during local day,
      Near predicted monthly values 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):
      Mostly near predicted monthly values.

20 Oct  -12      Normal-fair       
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
   Northern Australian Region:
      Depressed by 20% during local day,
      Depressed by 15% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 20% over the UT day.

21 Oct  -14      Normal-fair       
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
   Northern Australian Region:
      Depressed by 25% during local day,
      Near predicted monthly values 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):
      Near predicted monthly values over the UT day.

22 Oct   -2      Normal-fair       
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Depressed 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.

23 Oct   -8      Normal-fair       
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
   Northern Australian Region:
      Depressed 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.

Predicted Monthly T index for October:  10
2. FORECAST (24 OCTOBER - 30 OCTOBER) 
MUFS: briefly depressed after local dawn 25 to 26 Oct
MUFs mostly near predicted monthly values on other days.
Variable depressions possible at low to mid latitudes. 
Propagation conditions: Fair 25-Oct Fair 26-Oct , otherwise normal. No SWFs
T index:    0

3. OUTLOOK (31 OCTOBER - 30 NOVEMBER)
Degraded HF propagation conditions possible:
21-Nov to 22-Nov.

PLEASE NOTE:
At this time of the solar cycle, space weather conditions
are frequently determined by short timescale events, not
able to be forecasted a week in advance.

For an explanation of some of the terms in this report, goto
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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