[Ips-dhfpr] IPS Daily HF Prop Report - 27 February 06

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 27/2330Z FEBRUARY 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (27 FEBRUARY) 
Date   T index  Conditions    
27 Feb    16    Normal         

Flares: none.

MUFs:
   Equatorial PNG/Niue Region:
      Near predicted monthly values. Dusk enhancements noted
      at PNG (Vanimo, Pt Moresby) and Western Pacific (Niue).
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Spread F observed overnight
      in the Southern Ocean at Christchurch and MacQuarie Is.
      Strong sporadic E was also observed overnight at
      Hobart.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day. Strong
      Spread F observed inside the polar cap at Casey due to
      ionospheric convection resulting from prolonged
      ~20hr southward IMF Bz merging with the geomagnetic
      field.

PCA Event : No event.

Predicted Monthly T index for February:  16
2. FORECAST (28 FEBRUARY - 02 MARCH)
Date   T index  Conditions       MUFs                              
28 Feb    15    Normal           ÿon.forecast 
01 Mar    12    Normal           Near predicted monthly values     
02 Mar    14    Normal           Near predicted monthly values    
COMMENT: Conditions average at low and mid latitudes. Conditions 
improving at higher latitudes after prolonged merging (~20hrs) 
with the solar IMF, which drove polar cap ionospheric convection, 
was shut off by Bz turning zero to northwards for several hours. 
Overall conditions expected to be average apart from local sporadic 
E and spread F. 
----------------------------------------------------------
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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