[Ips-dhfpr] IPS Daily HF Prop Report - 18 March 15 issued 2332 UT on 18 Mar 2015
rwc
rwc at ips.gov.au
Thu Mar 19 10:32:21 EST 2015
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/18 MARCH 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (18 MARCH)
Date T index Conditions
18 Mar 25 Poor-fair
Flares Max Fadeout Freq. Sectors
M1.0 17/2336UT possible lower West Pacific
MUFs:
Cocos Island Region:
Near predicted monthly values during local day.
Depressed by 25% during local night.
Niue Island Region:
Depressed by 20% during local day.
Depressed by 35% during local night.
Depressed by 20% after local dawn.
Northern Australian Region:
Depressed by 50% during local day.
Depressed by 35% during local night.
Depressed by 25% after local dawn.
Southern Australian and New Zealand Region:
Depressed by 50% during local day.
Depressed by 20% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 25% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Feb 116
Mar 90
Apr 89
2. FORECAST (19 MARCH - 21 MARCH)
Date T index Conditions MUFs
19 Mar 60 Fair-normal 15 to 25% below predicted monthly
values
20 Mar 90 Normal Near predicted monthly values
21 Mar 100 Normal Near predicted monthly values
COMMENT: IPS HF Communications Warning 8 was issued on 17 March
and is current for 18-19 Mar. Lack of ionospheric support for
HF communications and/or significant depressions were observed
across the Australian region on 18-Mar. Moderate depressions
are expected to persist during 19-Mar, with MUFs returning to
near monthly predicted values on 20-Mar.
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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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