[Ips-dhfpr] IPS Daily HF Prop Report - 13 December 09
rwc
rwc at ips.gov.au
Mon Dec 14 10:19:42 EST 2009
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 13/2330Z DECEMBER 2009 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (13 DECEMBER)
Date T index Conditions
13 Dec -26 Normal-fair
Flares: none.
MUFs:
Cocos Island Region:
Depressed by 20% during local day,
Near predicted monthly values during local night.
Niue Island Region:
Depressed by 30% during local day,
Depressed by 25% during local night.
Northern Australian Region:
Depressed by 25% during local day,
Near predicted monthly values during local night.
Southern Australian and New Zealand Region:
Depressed by 15% during local day,
Near predicted monthly values during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
PCA Event : No event.
Predicted Monthly T index for December: 1
2. FORECAST (14 DECEMBER - 16 DECEMBER)
Date T index Conditions MUFs
14 Dec -15 Normal-fair near predicted monthly values/depressed
10 to 20%
15 Dec -15 Normal near predicted monthly values/depressed
10 to 20%
16 Dec -20 Normal near predicted monthly values/depressed
10 to 20%
COMMENT: Increased solar activity over the last 24 hours resulted
in a strengthening of ionospheric support for HF. However MUFs
remained depressed during the day at most locations and near
predicted monthly values overnight. The equatorial regions were
variable. HF conditions were fair to normal at most locations,
although some periods of sporadic E remained. Stronger solar
activity should result in MUFs nearer to predicted monthly values
over the next 3 days.
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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.
IPS Radio and Space Services email: asfc at ips.gov.au
PO Box 1386 WWW: http://www.ips.gov.au
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