[Ips-whfpr] IPS Weekly Prop. Report (23 January 13) issued 0142 UT on 23 Jan 2013

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED ON 23 JANUARY 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (16 JANUARY - 22 JANUARY)
Date   T index   Conditions        
16 Jan  123      Normal-fair       
MUFS:
   Cocos Island Region:
      Near predicted monthly values. Enhanced 20-35% 04-07 UT. 
      Depressions 20-30% 21-23 UT. 
   Niue Island Region:
      Near predicted monthly values. Enhanced
      20-30% 00-01 UT and 22-23 UT. Depressed 15-20% 03-06 UT
      and 25-35% 12-17 UT.
   Northern Australian Region:
      Near predicted monthly values. Enhanced 20-40% 01-04,
      08-16 UT at Darwin. Enhanced 20-30% 08-18, 21-22 UT at
      Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced to 30% during local night.
      Enhanced by 30% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values to 30%
      enhanced.

17 Jan  122      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values. Enhanced 20-35% 04-07 UT and
      20 UT.
   Niue Island Region:
      Near predicted monthly values. Enhanced 20-30% 00-01, 09-11
      and 19-20 UT. Depressed 25-40% 12-17 UT.
   Northern Australian Region:
      Near predicted monthly values. Enhanced 20-35% at Darwin
      20-23 UT. Enhanced 15-25% 00-03, 08-20 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values to 25% enhanced.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values with some depressions to 25%.

18 Jan   99      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values. Enhanced to 20%
      02-09 UT. Depressed to 15-25% 20-23 UT. 
   Niue Island Region:
      Near predicted monthly values. Enhanced 20-30%
      20-23 UT.
   Northern Australian Region:
      Near predicted monthly values. Depressions 20-25%
      18-20 UT at Darwin. Spread F observed at Townsville
      11-19 UT.
   Southern Australian and New Zealand Region:
      Enhanced to 30% 00-07 UT. Near predicted monthly
      values to 15% depressed 08-18 UT. Enhanced to 30% after
      local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Weak ionosphere with near predicted monthly values to 20% depressed.

19 Jan  111      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values. Depressions to 15%
      09-12 and 23 UT.
   Niue Island Region:
      Enhanced 25-40% 00-13 UT. Near predicted monthly
      values at other times.
   Northern Australian Region:
      Near predicted monthly values to 20% enhanced.
      Enhanced 15-35% 12-20 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with occasional
      enhancements to 25%.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values.

20 Jan   99      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values. Enhanced 20-30% 16-18 UT.
   Niue Island Region:
      Near predicted monthly values. Depressed 15-25% 02-04 and
      16-17 UT. Enhanced by 15-30% 08-13 UT.
   Northern Australian Region:
      Near predicted monthly values with enhancements 25-50%
      05-16 UT at Darwin. Mostly near predicted monthly
      values at Townsville.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values. Enhanced 15-25% at
      some stations during local day.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Occasional weak ionosphere. Near predicted monthly values
      to 20% depressed.

21 Jan   74      Normal            
MUFS:
   Cocos Island Region:
      Depressed by 25% during local day.
      Near predicted monthly values during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced 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.

22 Jan   61      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

Predicted Monthly T index for January:  80

2. FORECAST (23 JANUARY - 29 JANUARY) 
MUFS: MUFs mostly near predicted monthly values. Minor
MUF depressions may be observed throughout this period due
to very low to low levels of solar activity.

Propagation conditions: Normal. No SWFs.

T index: 70

3. OUTLOOK (30 JANUARY - 01 MARCH)
Degraded HF propagation conditions possible:
No significant degraded periods expected. Minor
degradations may be observed throughout this period due
to very low to low levels of solar activity.

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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