[Ips-dhfpr] IPS Daily HF Prop Report - 20 October 13 issued 2330 UT on 20 Oct 2013

Regional Warning Centre rwc at ips.gov.au
Mon Oct 21 10:30:34 EST 2013


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 OCTOBER 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 OCTOBER) 
Date   T index  Conditions    
20 Oct   101    Normal-fair    

Flares: none.

MUFs:
   Niue Island Region:
      Enhanced by 20% during local day.
      Enhanced by 40% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
      Enhanced by 30% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 25% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Sep      68
Oct      72
Nov      70


2. FORECAST (21 OCTOBER - 23 OCTOBER)
Date   T index  Conditions       MUFs                              
21 Oct    90    Normal           Near to 15% above predicted 
                                 monthly values
22 Oct    90    Normal           Near to 15% above predicted 
                                 monthly values    
23 Oct    90    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: Enhanced MUF's observed across the region, partially 
from enhanced ionising EUV (f10.7cm) flux from numerous spot 
groups. AR1861 and 1864 rotating off the disc should have diminished 
EUV flux somewhat, so extra ionisation in the Australasian region 
may be due to transport by upper atmosphere (thermospheric) winds 
from outside the region, usually from the northern hemisphere. 
Similar ionospheric conditions are expected for the next 3 days.

----------------------------------------------------------
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
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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