[Ips-dhfpr] IPS Daily HF Prop Report - 17 February 16 issued 2353 UT on 17 Feb 2016 [SEC=UNCLASSIFIED]
rwc at ips.gov.au
Thu Feb 18 10:53:50 EST 2016
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 FEBRUARY 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (17 FEBRUARY)
Date T index Conditions
17 Feb 36 Normal
Cocos Island Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Enhanced by 20% after local dawn.
Niue Island Region:
Depressed by 15% during local day.
Depressed by 25% during local night.
Depressed by 20% after local dawn.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Depressed by 20% 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.
Monthly T index:
Month T index
2. FORECAST (18 FEBRUARY - 20 FEBRUARY)
Date T index Conditions MUFs
18 Feb 40 Normal-fair Near predicted monthly values/depressed
10 to 30%
19 Feb 45 Normal Near predicted monthly values/depressed
10 to 30%
20 Feb 50 Normal Near predicted monthly values
COMMENT: IPS HF Communications Warning 11 was issued on 17 February
and is current for 17-18 Feb. Variable ionospheric support observed
over the last 24 hours with depressed MUF's observed for Southern
AUS/NZ regions, enhanced MUF's for some Northern AUS and Equatorial
regions and disturbed conditions for some Antarctic stations.
Continued elevated geomagnetic activity expected for 18Feb should
see MUF depressions of ~20% for Southern AUS/NZ regions and possibly
for Northern AUS regions. Continued disturbed ionospheric conditions
for Antarctic regions and possible enhanced periods during local
day for low-latitude/equatorial regions. Ionospheric support
expected to slowly return to near predicted monthly values by
For an explanation of some of the terms in this report, go to
http://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
Space Weather Services email: asfc at ips.gov.au
Bureau of Meteorology
PO Box 1386 WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010 fax: +61 2 9213 8060
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