[Ips-whfpr] IPS Weekly Prop. Report (19 September 01)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 19/0200Z SEPTEMBER 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (12 SEPTEMBER - 18 SEPTEMBER)
Date   T index   Conditions        
12 Sep  145      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 20% during local day,
      Enhanced by 30% 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:
      Enhanced by 15% during local day,
      Enhanced by 35% during local night.
      Enhanced by 15% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Ranged by -15 to 15% over the UT day.

13 Sep  140      Normal            
MUFS:
   Equatorial PNG Region:
     Near predicted monthly values during local day,
     Enhanced by 30% during local night.
  Northern Australian Region:
     Near predicted monthly values during local day,
     Enhanced by 15% during local night.
  Southern Australian and New Zealand Region:
     Enhanced by 25% during local day,
     Enhanced by 15% during local night.
  Antarctic Region (Casey/Scott Base):
     Near predicted monthly values over the UT day.

14 Sep  147      Normal            
MUFS:
   Equatorial PNG Region:
     Enhanced by 25% during local day,
     Enhanced by 15% during local night.
     Enhanced by 20% after local dawn.
  Northern Australian Region:
     Near predicted monthly values during local day,
     Enhanced by 45% during local night.
  Southern Australian and New Zealand Region:
     Near predicted monthly values during local day,
     Enhanced by 35% during local night.
     Enhanced by 15% after local dawn.
  Antarctic Region (Casey/Scott Base):
     Enhanced by 20% over the UT day.

15 Sep  156      Normal            
MUFS:
   Equatorial PNG Region:
     Enhanced by 20% during local day,
     Enhanced by 15% during local night.
  Northern Australian Region:
     Near predicted monthly values during local day,
     Enhanced by 45% during local night.
  Southern Australian and New Zealand Region:
     Enhanced by 20% during local day,
     Enhanced by 45% during local night.
  Antarctic Region (Casey/Scott Base):
     Near predicted monthly values over the UT day.

16 Sep  144      Normal            
MUFS:
   Equatorial PNG Region:
     Near predicted monthly values during local day,
     Enhanced by 20% during local night.
  Northern Australian Region:
     Near predicted monthly values during local day,
     Enhanced by 45% during local night.
  Southern Australian and New Zealand Region:
     Enhanced by 20% during local day,
     Enhanced by 35% during local night.
     Enhanced by 20% after local dawn.
  Antarctic Region (Casey/Scott Base):
     Enhanced by 20% over the UT day.

17 Sep  151      Normal            
MUFS:
   Equatorial PNG Region:
     Near predicted monthly values during local day,
     Enhanced by 30% during local night.
  Northern Australian Region:
     Near predicted monthly values during local day,
     Enhanced by 35% during local night.
  Southern Australian and New Zealand Region:
     Enhanced by 15% during local day,
     Enhanced by 35% during local night.
     Enhanced by 30% after local dawn.
  Antarctic Region (Casey/Scott Base):
     Enhanced by 45% over the UT day.

18 Sep  152      Normal            
MUFS:
   Equatorial PNG Region:
     Near predicted monthly values during local day,
     Enhanced by 30% during local night.
  Northern Australian Region:
     Near predicted monthly values during local day,
     Enhanced by 50% during local night.
     Enhanced by 15% after local dawn.
  Southern Australian and New Zealand Region:
     Enhanced by 15% during local day,
     Enhanced by 40% during local night.
     Enhanced by 15% after local dawn.
  Antarctic Region (Casey/Scott Base):
     Enhanced by 55% over the UT day.

Predicted Monthly T index for September: 108
2. FORECAST (19 SEPTEMBER - 25 SEPTEMBER) 
MUFS: MUFs near normal. SWFs probable early in week.
Propagation conditions: Normal-fair for high latitudes,
      otherwise normal. SWfs probable early in week.
T index:  140
COMMENT: IPS HF Communications Warning 47 was issued on 
18 September and is current for interval 19-21 September (SWFs) . 
3. OUTLOOK (26 SEPTEMBER - 26 OCTOBER)
Degraded HF propagation conditions possible:
09-11 Oct
18-20 Oct.

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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