[Ips-dhfpr] SWS Daily HF Prop Report - 01 February 17 issued 2330 UT on 01 Feb 2017 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at sws.bom.gov.au
Thu Feb 2 10:30:26 EST 2017
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/01 FEBRUARY 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (01 FEBRUARY)
Date T index Conditions
01 Feb -19 Fair-poor
Flares: none.
MUFs:
Cocos Island Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Niue Island Region:
Near predicted monthly values during local day.
Depressed by 25% during local night.
Northern Australian Region:
Depressed by 30% during local day.
Depressed by 30% during local night.
Southern Australian Region:
Depressed by 25% during local day.
Depressed by 20% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 15% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Jan 0
Feb 20
Mar 19
2. FORECAST (02 FEBRUARY - 04 FEBRUARY)
Date T index Conditions MUFs
02 Feb -20 Fair-poor 15 to 20% below predicted monthly
values
03 Feb -10 Fair-poor Depressed 15%/near predicted
monthly values
04 Feb 5 Normal-fair Near predicted monthly values
COMMENT: SWS HF Communications Warning 13 was issued on 1 February
and is current for 1-2 Feb. Depressed MUFs observed for Northern
AUS and Southern AUS/NZ regions over the last 24 hours. Variable
ionospheric support for Equatorial regions. Periods of sporadic-E
were observed in many locations. On 02-03 Feb depressed MUFs
are expected as a result of increased in geomagnetic activity.
HF users are advised to use lower than the monthly predicted
frequencies.
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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 bom.gov.au
Bureau of Meteorology
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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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