[Ips-dhfpr] IPS Daily HF Prop Report - 16 July 14 issued 2330 UT on 16 Jul 2014

Regional Warning Centre rwc at ips.gov.au
Thu Jul 17 09:30:35 EST 2014


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/16 JULY 2014 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (16 JULY) 
Date   T index  Conditions    
16 Jul    71    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 45% during local night.
      Depressed by 25% after local dawn.
   Niue Island Region:
      Mostly near predicted monthly values.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 35% during local night.
      Depressed by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   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
Jun      65
Jul      92
Aug      90


2. FORECAST (17 JULY - 19 JULY)
Date   T index  Conditions       MUFs                              
17 Jul    75    Normal           Near predicted monthly values/depressed 
                                 10 to 20%
18 Jul    75    Normal           Near predicted monthly values/depressed 
                                 10 to 20%    
19 Jul    70    Normal           Depressed 15%/near predicted 
                                 monthly values   

COMMENT: MUFs were generally depressed throughout the northern 
Australasian region and low latitudes during 15 July due to the 
lack of ionising EUV and X-rays from the low spot count on the 
solar disc. This is likely to continue for the next 2-3 days. 
There was spread F observed at near-equatorial latitudes,suggesting 
activity in the equatorial anomaly/fountain, probably due to 
thermospheric winds, as geomagnetic activity has been Quiet.

----------------------------------------------------------
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 

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