[Ips-dhfpr] IPS Daily HF Prop Report - 18 November 07

rwc rwc at ips.gov.au
Mon Nov 19 10:10:14 EST 2007


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z NOVEMBER 2007 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 NOVEMBER) 
Date   T index  Conditions    
18 Nov   -39    Normal         

Flares: none.

MUFs:
   Equatorial PNG/Niue Region:
      Depressed by 35% over the UT day. 
   Northern Australian Region:
      Depressed by 20% during local day,
      Depressed by 35% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day,
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day. 

PCA Event : No event.

Predicted Monthly T index for November:  11
2. FORECAST (19 NOVEMBER - 21 NOVEMBER)
Date   T index  Conditions       MUFs                              
19 Nov   -30    Normal           15 to 30% below predicted monthly 
                                 values 
20 Nov   -30    Normal           15 to 30% below predicted monthly 
                                 values     
21 Nov   -15    Normal           10 to 20% below predicted monthly 
                                 values    

COMMENT: Widespread depressions in MUFs continue across Australian/ 
NZ/SW-Pacific region due to lack of solar ionisation. Particularly 
severe depressions of up to 45% were again observed at some equatorial 
stations. Expect these conditions to continue next two days. 
An easing of depressions possible day three (21 Nov) although 
generally low MUFs are expected until a pick-up in solar ionisation. 

----------------------------------------------------------
For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

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