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

[rwc]

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

1. SUMMARY (18 JULY) 
Date   T index  Conditions    
18 Jul     9    Normal         

Flares: none.

MUFs:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
   Northern Australian Region:
      Depressed by 15% during local day,
      Near predicted monthly values 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/Davis/Mawson):
      Near predicted monthly values.

PCA Event : No event.

Predicted Monthly T index for July:  10
2. FORECAST (19 JULY - 21 JULY)
Date   T index  Conditions       MUFs                              
19 Jul     6    Normal           near predicted monthly values/depressed 
                                 10 to 20% 
20 Jul    12    Normal           near predicted monthly values     
21 Jul     6    Normal           near predicted monthly values/depressed 
                                 10 to 20%    

COMMENT: With the exception of the S.Aus/NZ region which showed 
enhanced MUFs overnight, the ionosphere in the Aus region was 
mostly normal to slightly depressed. Similar conditions are expected 
for 19 July with depressions up to 20% likely. Night time spread-F 
and sporadic-E were observed in the S.Aus/NZ region, also expected 
to continue 19 Jul. 

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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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