[Ips-dhfpr] IPS Daily HF Prop Report - 31 October 00

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 31/2330Z OCTOBER 2000 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (31 OCTOBER) 
Date   T index  Conditions    
31 Oct   142    Normal         

Flares: none.

MUFs:
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Mostly near predicted monthly values,
   Southern Australian and New Zealand Region:
      Depressed by 5 to 10% after local dawn,
      Mostly near predicted monthly values during loval night,
   Antarctic Region (Casey/Scott Base):
      Depressed by 15% over the UT day.


Predicted Monthly T index for October: 135
2. FORECAST (01 NOVEMBER - 03 NOVEMBER)
Date   T index  Conditions       MUFs                              
01 Nov   140    Normal           about 5% below predicted monthly 
                                 values 
02 Nov   145    Normal           Near predicted monthly values     
03 Nov   150    Normal           Near predicted monthly values    
COMMENT: IPS HF Communications Warning 73 was issued on 29 October 
and is current for interval 31 October to 1 November. Mildly 
depressed conditions are expected for 1 NOV following the arrival 
of an anticipated shock on the 31 OCT with a sudden impulse of 
60 nT at Learmonth detected at 1714UT. PCA in progress, 30-MHz
riometer absorption of 0.5 dB at Casey at 2315UT.


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