[Ips-whfpr] IPS Weekly Prop. Report (25 December 02)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 25/0200Z DECEMBER 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (18 DECEMBER - 24 DECEMBER)
Date   T index   Conditions        
18 Dec  152      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced 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 during local day,
      Enhanced by 35% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


19 Dec  153      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 40% during local night.
   Northern Australian Region:
      Enhanced by 20% during local day,
   Southern Australian and New Zealand Region:
      Enhanced by 25% during local day,
      Depressed 15% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


20 Dec   97      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Enhanced by 30% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values,
   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.


21 Dec  122      Normal-fair       
MUFS:
   Equatorial PNG Region:
      No data.
   Northern Australian Region:
      Enhanced by 15% 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.


22 Dec  155      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 25% during local night.
   Northern Australian Region:
      Enhanced by 20% during local day,
      Enhanced by 35% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 20% during local day,
      Enhanced by 30% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


23 Dec  134      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Enhanced by 15-20%.
   Northern Australian Region:
      Enhanced by 20-30%.
   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.
      Some spread F observed.


24 Dec  102      Poor-normal       
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Depressed 15% first half of the UT day in S. Aus
      region.
      Remainder 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:  90
2. FORECAST (25 DECEMBER - 31 DECEMBER) 
MUFS: depressed 15 to 20% on 28-Dec, depressed 15% briefly after 
local dawn on 29-Dec, depressed 15% briefly after local dawn on 
30-Dec,  otherwise MUFs near normal. No SWFs.
Propagation conditions: Fair 28-Dec Fair 29-Dec Fair 30-Dec , 
otherwise normal. No SWFs
T index:  105

3. OUTLOOK (01 JANUARY - 31 JANUARY)
Degraded HF propagation conditions possible:
02-Jan, 09-Jan to 12-Jan, 15-Jan to 16-Jan, 22-Jan to 24-Jan.

PEASE 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
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