[Ips-whfpr] IPS Weekly Prop. Report (26 March 03)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 26/0200Z MARCH 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (19 MARCH - 25 MARCH)
Date   T index   Conditions        
19 Mar   78      Fair-normal       
MUFS:
   Equatorial PNG Region:
      Enhanced by 25% 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.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


20 Mar   78      Normal-poor       
MUFS:
   Equatorial PNG Region:
      Mostly near predicted monthly values,
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Mostly near predicted monthly values,
      Depressed by 30% after local dawn.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Depressed by 35% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Extended periods of disturbance over the UT day.


21 Mar   25      Poor-fair         
MUFS:
   Equatorial PNG Region:
      Variable local depressions during local day.
      Depressed by 20% during local night.
   Northern Australian Region:
      Depressed by 40% over the UT day.
   Southern Australian and New Zealand Region:
      Depressed by 15-35% over the UT day.
   Antarctic Region (Casey/Scott Base):
      Depressed by 15% over the UT day.


22 Mar   69      Fair              
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Slightly below predicted monthly values during local day,
      Depressed by 20% during local night.
   Antarctic Region (Casey/Scott Base):
      About 10% below predicted monthly values over the UT day,
      with extended periods of localised disturbance.


23 Mar   84      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values,
      Mildly depressed during local night.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values, with localised 
      periods of disturbance.


24 Mar   78      Normal            
MUFS:
   Equatorial PNG Region:
      Mostly near predicted monthly values,
      Depressed by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


25 Mar   85      Normal            
MUFS:
      Near predicted monthly values

COMMENT: Coronal hole wind stream effects caused ionospheric depressions
	 early in the week, recovering 24-25 Mar.

Predicted Monthly T index for March:  82
2. FORECAST (26 MARCH - 01 APRIL) 
MUFS: Depressed 5 to 10% 27-28 Mar, otherwise MUFs near normal. No SWFs.
Propagation conditions: Fair 27-28 Mar , otherwise normal. No SWFs
T index:   75

3. OUTLOOK (02 APRIL - 02 MAY)
Degraded HF propagation conditions possible:
02-Apr, 10-13Apr, 16-Apr, 21-22Apr, 24-27Apr.

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 
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