[Ips-dhfpr] SWS Daily HF Prop Report - 22 February 18 issued 2330 UT on 22 Feb 2018 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at ips.gov.au
Fri Feb 23 10:30:41 EST 2018
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/22 FEBRUARY 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (22 FEBRUARY)
Date T index Conditions
22 Feb -7 Normal
Flares: none.
MUFs:
Niue Island Region:
Near predicted monthly values during local day.
Depressed by 15% during local night.
Northern Australian Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
Near predicted monthly values.
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
Jan -6
Feb 4
Mar 3
2. FORECAST (23 FEBRUARY - 25 FEBRUARY)
Date T index Conditions MUFs
23 Feb -5 Normal Near predicted monthly values
24 Feb 0 Normal Near predicted monthly values
25 Feb 0 Normal Near predicted monthly values
COMMENT: MUFs were mostly near predicted monthly values for the
Australian region during the UT day 22 Feb. However periods of
minor depressions were noted in the Northern Australian region
during local day time hours. There were a few cases of Sporadic
E blanketing over the Australian and other Oceanic ionosonde
sites. For 23-25 Feb, MUFs are expected to be mostly near predicted
monthly values. Minor to moderate depressions may occur, particularly
in the Southern hemisphere as a consequence of the minor increase
in geomagnetic activity and low EUV levels.
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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
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