[Ips-dhfpr] IPS Daily HF Prop Report - 31 July 05

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 31/2330Z JULY 2005 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (31 JULY) 
Date   T index  Conditions    
31 Jul    45    Normal         

Flares    Max     Fadeout    Freq.  Sectors
 M1/--    1224UT  possible   lower  European

MUFs:
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Near predicted monthly values during local night.
      Enhanced by 25% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Proton event in progress, increased absorption observed.

PCA Event : 10Mev Proton/PCA Event Began 27 07 2005 2325UT and is in progress

Predicted Monthly T index for July:  27
2. FORECAST (01 AUGUST - 03 AUGUST)
Date   T index  Conditions       MUFs                              
01 Aug    30    Normal-fair      near predicted monthly values/depressed 
                                 10 to 20% 
02 Aug    45    Normal           Near predicted monthly values     
03 Aug    50    Normal           Near predicted monthly values    
COMMENT: Mostly normal to enhanced HF conditions observed Equatorial/N 
Aus regions. Expect periods of degradation S Aus/NZ regions on 
days one and two due to geomagnetic activity associated with 
an anticipated minor solar wind shock. Proton event following 
recent flare activity is still in progress, but is expected to 
end today unless sustained by further solar flare activity. Isolated 
radio fadeouts possible during local day over the next week due 
to active sunspot region. 
----------------------------------------------------------
For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Gloassary on Solar Terrestrial Terms.

IPS Radio and Space Services      | email: asfc at ips.gov.au
PO Box 1386                       | WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060 

IMPORTANT: This e-mail, including any attachments, may contain,confidential
or copyright information.  The views expressed in this message are those of
the individual sender, unless specifically stated to be the views of IPS.
If you are not the intended recipient, please contact the sender immediately
and delete all copies of this e-mail and attachments. Occasionally IPS sends 
email promoting IPS products and services to its mailing list customers. 
If you do not wish to receive this promotional material please email 
no-spam at ips.gov.au with the subject header:UNSUBSCRIBE"