[Ips-dhfpr] IPS Daily HF Prop Report - 29 April 14 issued 2330 UT on 29 Apr 2014

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/29 APRIL 2014 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (29 APRIL) 
Date   T index  Conditions    
29 Apr    74    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Depressed by 30% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Mar      141
Apr      86
May      86


2. FORECAST (30 APRIL - 02 MAY)
Date   T index  Conditions       MUFs                              
30 Apr    80    Normal           Near predicted monthly values
01 May   100    Normal           Near predicted monthly values    
02 May   100    Normal           Near predicted monthly values   

COMMENT: HF conditions somewhat depressed over the region for 
the 29th April UT day compared with recent conditions, primarily 
due to strong nighttime depressions. However the T-index is only 
slightly below long term monthly predicted T (due to late phasing 
of solar cycle 24). The lack of geomagnetic activity would suggest 
a cause of transport of ionisation out of the region by thermospheric 
winds. Unsettled geomagnetic activity on the 30th may continue 
this relatively depressed state for another 24 hours. Return 
to normal conditions (i.e. enhanced over long term predicted 
monthly T) may be expected from the 1st May UT.

----------------------------------------------------------
For an explanation of some of the terms in this report, go to
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
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. 
To unsubscribe from an IPS mail list either send an email to 
"MAIL_LIST"-leave at ips.gov.au or go to
http://listserver.ips.gov.au/mailman/listinfo/"MAIL_LIST".
Information about training can be obtained from
http://listserver.ips.gov.au/mailman/listinfo/ips-training.
General information is available from
http://listserver.ips.gov.au/mailman/listinfo/ips-info.