[Ips-dhfpr] SWS Daily HF Prop Report - 20 February 19 issued 2337 UT on 20 Feb 2019 [SEC=UNCLASSIFIED]
rwc at ips.gov.au
Thu Feb 21 10:37:07 EST 2019
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 FEBRUARY 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (20 FEBRUARY)
Date T index Conditions
20 Feb -15 Normal
Cocos Island Region:
Depressed by 15% during local day.
Enhanced by 20% during local night.
Niue Island Region:
No data available during local day.
No data available during local night.
Northern Australian Region:
Depressed by 20% during local day.
Enhanced by 35% 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
2. FORECAST (21 FEBRUARY - 23 FEBRUARY)
Date T index Conditions MUFs
21 Feb -15 Normal Near predicted monthly values
22 Feb -15 Normal Near predicted monthly values
23 Feb -15 Normal Near predicted monthly values
COMMENT: On UT day 20 February, MUFs were mostly near monthly
predicted levels over the Australian region. In the Northern
Australian and Cocos Island regions, mild to moderate enhancements
were observed during the local night and mild depressions were
observed during the local day. Sporadic E layers were seen across
the region. During the next three UT days, 21-23 February, MUFs
are expected to be mostly near monthly predicted levels. However,
mild to moderate depressions are possible due to continued very
low levels of ionising radiation from the Sun.
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
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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