[Ips-dhfpr] IPS Daily HF Prop Report - 07 April 10

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 07/2330Z APRIL 2010 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (07 APRIL) 
Date   T index  Conditions    
07 Apr     9    Fair-normal    

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 35% during local day,
      Near predicted monthly values during local night.
   Niue Island Region:
      Mostly near predicted monthly values,
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Depressed by 30% during local day,
      Depressed by 30% during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 30% over the UT day.

PCA Event : No event.

Predicted Monthly T index for April:  20
2. FORECAST (08 APRIL - 10 APRIL)
Date   T index  Conditions       MUFs                              
08 Apr    20    Normal           depressed 10 to 20%/near predicted 
                                 monthly values 
09 Apr    20    Normal           near predicted monthly values     
10 Apr    20    Normal           Near predicted monthly values    
COMMENT: High latitude ionosonde stations showed weak traces 
and depressed HF MUFs, particularly at local night time hours. 
Observed mild depressions at Mid latitudes and some enhanced 
MUFs at low latitudes. Isolated cases of sporadic E noted through 
out the Australian region. Observed sporadic E at the Niue station 
during late evening and early local night time hours. Expect 
HF codtions to return to normal predicticted monthly values in 
the Australian region over the next three days with minor depressions 
possible at high latitudes. 
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For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

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