[Ips-dhfpr] IPS Daily HF Prop Report - 06 May 08

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 06/2330Z MAY 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (06 MAY) 
Date   T index  Conditions    
06 May    13    Normal         

Flares: none.

MUFs:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Variable conditions during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 30% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 45% over the UT day.

PCA Event : No event.

Predicted Monthly T index for May:   6
2. FORECAST (07 MAY - 09 MAY)
Date   T index  Conditions       MUFs                              
07 May    12    Normal           0 to 10% above predicted monthly 
                                 values 
08 May     6    Normal           0 to 5% above predicted monthly 
                                 values     
09 May     6    Normal           Near predicted monthly values    
COMMENT: Short-term variability and spread-F observed Equatorial/N 
Aus regions , particularly during daytime. Regional foF2 and 
T-index generally slightly above monthly average although Equatorial/N 
Aus values sometimes below average for an hour or two. Strong 
ionosphere possibly due to some enhanced EUV from solar AR993 
and excitation from low-moderate geomagnetic activity from the 
coronal-hole wind-stream although this is now diminishing. Night 
Es observed in the north-west (LEA) and pre-dawn spread-F in 
the south-east (HBT, NLK). Expect return to mostly normal ionospheric 
conditions at low to mid latitudes over the next day. Antarctic 
ionosphere still disturbed and should remain so for a couple 
of days. http://www.ips.gov.au/HF_Systems/1/2/4 http://www.ips.gov.au/HF_Systems/1/2/1 
http://www.ips.gov.au/HF_Systems/1/6/2 http://www.ips.gov.au/HF_Systems/1/6/1 
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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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