[Ips-dhfpr] IPS Daily HF Prop Report - 17 August 11
rwc
rwc at ips.gov.au
Thu Aug 18 09:54:32 EST 2011
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 17/2330Z AUGUST 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (17 AUGUST)
Date T index Conditions
17 Aug 42 Normal
Flares: none.
MUFs:
Cocos Island Region:
Depressed by 20% during local day,
Depressed by 40% during local night.
Niue Island Region:
Near predicted monthly values during local day,
Enhanced by 50% during local night.
Northern Australian Region:
Depressed by 20% during local day,
Depressed by 20% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values to depressed by 25% at times.
PCA Event : No event.
Predicted Monthly T index for August: 59
2. FORECAST (18 AUGUST - 20 AUGUST)
Date T index Conditions MUFs
18 Aug 50 Normal Near predicted monthly values to
depressed 5 to 15% at times.
19 Aug 55 Normal Near predicted monthly values
20 Aug 55 Normal Near predicted monthly values
COMMENT: Moderate depressions were observed at equatorial regions
at times during the past 24 hours with mild depressions observed
at times over northern Australian regions. Mild depressions are
expected at times over the next 24 hours primarily for northern
Australian to equatorial regions otherwise MUFs are expected
to be mostly near predicted monthly values. Periods of Spread-F
and Sporadic-E conditions were observed during the past 24 hours
which may have degraded HF conditions at times. Further periods
of Spread-F and Sporadic-E are expected over the next 24 hours
which may result in degraded HF conditions at times.
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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.
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