[Ips-whfpr] IPS Weekly Prop. Report (24 December 03)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 24/0200Z DECEMBER 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (17 DECEMBER - 23 DECEMBER)
Date   T index   Conditions        
17 Dec   70      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values.
   Northern Australian Region:
      Enhanced by 15% over the UT day.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


18 Dec   88      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Enhanced by 30% 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):
      Near predicted monthly values over the UT day.


19 Dec   91      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 30% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 15% over the UT day.


20 Dec   74      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Enhanced by 40% during local night.
      Depressed by 10% after local dawn.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during local day/night,
      Depressed by 10% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day
      with increasing periods of disturbance.


21 Dec   20      Fair-normal       
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
   Northern Australian Region:
      Depressed by 20% during local day,
      Slightly below predicted values during local night.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day,
      Slightly below predicted values during local night.
   Antarctic Region (Casey/Scott Base):
      Slightly below predicted monthly values over the UT day.


22 Dec   80      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Enhanced by 20% during local night and after 
      local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 25% during local night and after
      local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Scott Base):
      Slightly below predicted  monthly values over 
      the UT day.


23 Dec   85      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 20-25% during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Enhanced 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 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


Predicted Monthly T index for December:  50
2. FORECAST (24 DECEMBER - 30 DECEMBER) 
MUFS: Depressed 15% briefly after local dawn on 28-Dec,  
      otherwise MUFs near normal. No SWFs.
Propagation conditions: Fair 28-Dec , otherwise normal. No SWFs
T index:  105

3. OUTLOOK (31 DECEMBER - 30 JANUARY)
Degraded HF propagation conditions possible:
03-Jan to 12-Jan, 15-Jan to 17-Jan, 28-Jan to 29-Jan.

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.

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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