[Ips-dhfpr] IPS Daily HF Prop Report - 06 August 12 issued 2344 UT on 06 Aug 2012
rwc at ips.gov.au
Tue Aug 7 09:44:12 EST 2012
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/06 AUGUST 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (06 AUGUST)
Date T index Conditions
06 Aug 89 Normal
Flares Max Fadeout Freq. Sectors
M1.6 0438UT possible lower E. Asia/Aust.
Cocos Island Region:
Enhanced by 15% during local day.
Depressed by 25% during local night.
Niue Island Region:
Enhanced by 30% during local day.
Enhanced by 15% during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day.
Enhanced by 20% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 15% over the UT day.
PCA Event : No event.
Predicted Monthly T index for August: 77
2. FORECAST (07 AUGUST - 09 AUGUST)
Date T index Conditions MUFs
07 Aug 80 Normal 0 to 10% above predicted monthly
08 Aug 85 Normal 0 to 10% below predicted monthly
09 Aug 80 Normal Near predicted monthly values
COMMENT: HF conditions were Normal 06-Aug, with MUFs mostly near
or above predicted monthly values at mid-latitudes, more variable
at low-latitudes and enhanced at high latitudes. The T index
is higher than the predicted monthly value due to a large number
of smaller sunspots emitting ionising EUV. Expect mostly Normal
to slightly enhanced MUF conditions for the 07 Aug. On 8 Aug
a CME should strike a glancing blow causing Unsettled-Active
geomagnetic conditions, which should slightly depress MUFs, with
recovery on the 9th.
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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