[Ips-whfpr] IPS Weekly Prop. Report (12 September 01)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 12/0200Z SEPTEMBER 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (05 SEPTEMBER - 11 SEPTEMBER)
Date   T index   Conditions        
05 Sep  141      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 15-40%.
   Northern Australian Region:
      Enhanced by 20-30%.
   Southern Australian and New Zealand Region:
      Enhanced by 15-30%.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.

06 Sep  142      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 15-40%.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 35% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 15-35%.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 15% over the UT day.

07 Sep  146      Normal            
MUFS:
   Equatorial PNG Region:
     Enhanced by 35% during local day,
     Near predicted monthly values during local night.
     Enhanced by 15% after local dawn.
  Northern Australian Region:
     Near predicted monthly values during local day,
     Enhanced by 55% during local night.
  Southern Australian and New Zealand Region:
     Enhanced by 15-25%.
  Antarctic Region (Casey/Scott Base):
     Enhanced by 35% over the UT day.

08 Sep  154      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 15-40% during local day,
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 35% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 15-35% during local day,
   Antarctic Region (Casey/Scott Base):
      Enhanced by 15% over the UT day.

09 Sep  147      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 20%.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 45% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 20-30% during local day,
   Antarctic Region (Casey/Scott Base):
      Enhanced by 15% over the UT day.

10 Sep  142      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 15%.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 45% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during local day,
      Enhanced by 40% during local night.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 45% over the UT day.

11 Sep  145      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 20%.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 35% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 15-40% during local day,
   Antarctic Region (Casey/Scott Base):
      Enhanced by 35% over the UT day.

Predicted Monthly T index for September: 108
2. FORECAST (12 SEPTEMBER - 18 SEPTEMBER) 
MUFS: Near to 20% above predicted monthly values. 
Chance for brief mild depression 13 Sep after local dawn.
Propagation conditions: Fair 12-13 Sep and 18 Sep. Otherwise normal. 
Shortwave fadeouts likley on daylight circuits.
T index:  140
COMMENT: IPS HF Communications Warning 46 was issued on 
9 September and is current for interval  10-12 September (SWFs) . 
3. OUTLOOK (19 SEPTEMBER - 19 OCTOBER)
Degraded HF propagation conditions possible:
12-13Sep, 17-18 Sep, 21-22 Sep,10-Oct,14-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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