[Ips-dhfpr] IPS Daily HF Prop Report - 12 March 08

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 12/2330Z MARCH 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (12 MARCH) 
Date   T index  Conditions    
12 Mar     9    Normal         

Flares: none.

MUFs:
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Predicted Monthly T index for March:   6
2. FORECAST (13 MARCH - 15 MARCH)
Date   T index  Conditions       MUFs                              
13 Mar     6    Normal           near predicted monthly values/depressed 
                                 0 to 5% 
14 Mar     6    Normal           near predicted monthly values     
15 Mar     6    Normal           near predicted monthly values    
COMMENT: MUFs again recovered faster from depressions caused 
by geomagnetic activity from the coronal hole high-speed solar-wind 
stream, and were generally near monthly averages. Ionospheric 
resilience appears greater than the last equinox. Expect mid-latitudes 
returning to mostly normal HF conditions. The south-east quadrant 
exhibited Spread F (CCH post-dusk and pre-dawn, HBT post-dusk) 
and strong Es (CCH midnight, HBT pre-dawn, MQI night). Large 
enhancements and depressions continued at equatorial latitudes, 
particularly dusk enhancements and pre-dawn depressions, as residuals 
of the geomagnetic disturbance, and will take longer to settle 
than mid-latitudes. Polar ionosphere continues disturbed due 
to ongoing geomagnetic activity from IMF fluctuations. 
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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.

IPS Radio and Space Services        email: asfc at ips.gov.au
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