[Ips-whfpr] IPS Weekly Prop. Report (27 January 10)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 27/0200Z JANUARY 2010 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (20 JANUARY - 26 JANUARY)
Date   T index   Conditions        
20 Jan   16      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Enhanced by 25% during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 35% 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.

21 Jan   12      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values.
   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 20% 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    8      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Mostly near predicted monthly values.
   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.

23 Jan    6      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 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.

24 Jan   16      Normal            
MUFS:
   Cocos Island Region:
      Mostly near predicted monthly values.
      Enhanced by 25% after local dawn.
   Niue Island Region:
      Near predicted monthly values.
   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.

25 Jan   12      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values, depressions to 30%
      20-21 UT. Sporadic E observed 11-13, 16, 20-21 UT.
   Niue Island Region:
      Near predicted monthly values, depressions to 25%
      03-05 UT. Some night spread F.
   Northern Australian Region:
      Near predicted monthly values. Depressions to 30%
      01-04 UT at Townsville. Sporadic E observed at Darwin
      03-11 UT and Townsville 04-06, 22 UT.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with depressions to 25%
      01-04 UT at Brisbane. Sporadic E observed mostly 00-08
      UT with blanketing of the F region 02 UT at Brisbane
      and 03-04 UT at Canberra. Some night spread F observed
      at Hobart.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

26 Jan   20      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 25% during local day and by 70% during
      local night. Sporadic E observed 02, 18 and 21-22 UT.
   Niue Island Region:
      Near predicted monthly values with depressions to 30%
      02 and 12-17 UT. Sporadic E observed 02, 05, 06-08 UT.
   Northern Australian Region:
      Near predicted monthly values during local day with
      enhancements to 20% during local night. Depressions to
      25% 20-21 UT at Darwin.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day with
      enhancements to 15% during local night. Sporadic E
      observed mostly during daylight hours.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values. Depressions to 30%
      13-17 UT at Macquarie Is.

Predicted Monthly T index for January:   3

2. FORECAST (27 JANUARY - 02 FEBRUARY) 
MUFS: Near predicted monthly values.
Propagation conditions: Normal. No SWFs. Sporadic E may affect
  F region communications, particularly during daylight.
T index:   3

3. OUTLOOK (03 FEBRUARY - 05 MARCH)
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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