[Ips-whfpr] IPS Weekly Prop. Report (21 November 01)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 21/0200Z NOVEMBER 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (14 NOVEMBER - 20 NOVEMBER)
Date   T index   Conditions        
14 Nov  178      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 10-25%.
   Northern Australian Region:
      Enhanced by 10-25%.
   Southern Australian and New Zealand Region:
      Enhanced by 15-30%.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 25% over the UT day.

15 Nov  163      Normal            
MUFS:
   Equatorial PNG Region:
      Enhanced by 15%.
   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 30% during local night.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 25% over the UT day.

16 Nov  160      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 30% during local night.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 20-40% local night.
   Southern Australian and New Zealand Region:
      Enhanced by 20%.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.

17 Nov  166      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Northern Australian Region:
      Enhanced by 15-30%.
   Southern Australian and New Zealand Region:
      Enhanced by 20%.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.

18 Nov  157      Normal            
MUFS:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Northern Australian Region:
      Enhanced by 15-20%.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 25% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.
      Some absorption observed.

19 Nov  121      Fair-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.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.
      Absorption observed late in UT day.

20 Nov  143      Fair-normal       
MUFS:
   Equatorial PNG Region:
      Enhanced by 30% 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 20% during local night.
   Antarctic Region (Casey/Scott Base):
      Absorption observed first half of UT day.
      Near predicted monthly values over the UT day.

COMMENT:Mild degradation in conditions 19 Nov. Polar regions
affected by solar proton event  1240UT 19 Nov to 1335UT 20 Nov.

Predicted Monthly T index for November: 109
2. FORECAST (21 NOVEMBER - 27 NOVEMBER) 
MUFS: near to 15% above normal. Chance for mild depression 24-25 Nov 
southern Aus/NZ region only.
Propagation conditions: Fair  24-25 Nov, otherwise normal. SWfs probable 
later in week.
T index:  165

3. OUTLOOK (28 NOVEMBER - 28 DECEMBER)
Degraded HF propagation conditions possible:
03-Dec,14-Dec to 16-Dec,21-Dec to 23-Dec,25-Dec.

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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