[Ips-whfpr] IPS Weekly Prop. Report (13 October 10)

Wed Oct 13 12:53:36 EST 2010

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 13/0200Z OCTOBER 2010 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (06 OCTOBER - 12 OCTOBER)
Date   T index   Conditions        
06 Oct   18      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values to 15% depressed.
   Niue Island Region:
      Near predicted monthly values to 15% depressed.
      Depressions to 30% 21-23 UT.
   Northern Australian Region:
      Near predicted monthly values to 15% depressed.
      Depressions to 25% 01-02 and 19-21 UT at Darwin and
      02-06 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Depressions to 20%
      03-07 UT at Brisbane and 01-08 and 17-21 UT at Norfolk
      Is. Spread F at Hobart 15-19 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 25% depressed.

07 Oct   17      Fair-normal       
MUFS:
   Cocos Island Region:
      Near predicted monthly values with depressions to 25%
      14-17 UT. Depressed 35% 19-23 UT.
   Niue Island Region:
      Near predicted monthly values with depressions to 30%
      00-04 and 13-17 UT.
   Northern Australian Region:
      Near predicted monthly values with depressions to 20%
      04-08 and 19-21 UT.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with depressions to 20%
      00-09 UT. Depressions to 20% 19-21 UT Brisbane and
      Norfolk Is. Spread F observed at Hobart 08-19 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 30% depressed.

08 Oct   16      Fair-normal       
MUFS:
   Cocos Island Region:
      Near predicted monthly values with 15-25% depressions,
      00, 05 and 20-21 UT. Depressions to 45% 16-19 UT.
   Niue Island Region:
      Near predicted monthly values. Depressions to 30%, 12
      and 15-17 UT.
   Northern Australian Region:
      Depressions to 25%, 03-08 UT, to 45% 15-21 UT. Near
      predicted monthly values at other times.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Depressions to 25%,
      03-12 UT at Brisbane, 03-12 and 17-18, 22 UT at Norfolk
      Is. and 13-15 UT at Hobart. Spread F observed during
      night hours at Canberra, Hobart and Sydney.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values with occasional
      depressions to 30%.

09 Oct   19      Fair-normal       
MUFS:
   Cocos Island Region:
      Depressions to 20% 00-08, 14, 21 UT, depressions to
      40% 15-20 UT, near predicted monthly values at other
      times.
   Niue Island Region:
      Near predicted monthly values to 25% enhanced 00-13
      UT, then depressed to 30% 14-21 UT.
   Northern Australian Region:
      Near predicted monthly values. Depressions to 30%
      03-05 and 15-22 UT at Darwin and Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with depressions to 20%
      03-08 and 19-22 UT at Brisbane, and 25% 03-22 UT at
      Norfolk Is. Spread F observed 12-19 UT at Hobart.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values with depressions to 35%
      10, 13-18 UT at Macquarie Is.

10 Oct   17      Fair-normal       
MUFS:
   Cocos Island Region:
      Mostly 15-30% depressed.
   Niue Island Region:
      Near predicted monthly values with depressions to 30%
      00, 09-19, 23 UT.
   Northern Australian Region:
      Near predicted monthly values. Depressions to 20%
      02-05 UT and enhancements to 30% 11-15 UT at Darwin.
      Depressions to 20% 02-05 and 12-14 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Depressions to 20%
      02-07 and 12-15 UT at Brisbane, 02-06, 10-14 and 20-23
      UT at Norfolk Is. Spread F observed 11-19 UT at Hobart.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values with occasional
      depressions to 30%.

11 Oct   26      Normal-fair       
MUFS:
   Cocos Island Region:
      Enhanced by 40% during local day,
      Enhanced by 45% during local night.
   Niue Island Region:
      Depressed by 25% during local day,
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

12 Oct  -15      Poor-fair         
MUFS:
   Cocos Island Region:
      Depressed by 25% during local day,
      Depressed by 35% during local night.
      Enhanced by 25% after local dawn.
   Niue Island Region:
      Mostly near predicted monthly values,
   Northern Australian Region:
      Depressed by 35% during local day,
      Depressed by 45% during local night.
      Depressed by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Depressed by 30% during local day,
      Depressed by 15% during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 25% over the UT day.

Predicted Monthly T index for October:  30
2. FORECAST (13 OCTOBER - 19 OCTOBER) 
MUFS: MUFs near predicted monthly values.
Propagation conditions: Normal. No SWFs
T index:  30

3. OUTLOOK (20 OCTOBER - 19 NOVEMBER)
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
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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