[Ips-dhfpr] SWS Daily HF Prop Report - 11 December 18 issued 2330 UT on 11 Dec 2018 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at ips.gov.au
Wed Dec 12 10:30:22 EST 2018
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/11 DECEMBER 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (11 DECEMBER)
Date T index Conditions
11 Dec -37 Normal
Flares: none.
MUFs:
Cocos Island Region:
No data available during local day.
No data available during local night.
Niue Island Region:
Near predicted monthly values during local day.
Depressed by 25% during local night.
Depressed by 20% after local dawn.
Northern Australian Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
Depressed by 15% 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
Nov -32
Dec -8
Jan -9
2. FORECAST (12 DECEMBER - 14 DECEMBER)
Date T index Conditions MUFs
12 Dec -35 Normal Depressed 15 to 30%/near predicted
monthly values
13 Dec -35 Normal Depressed 15 to 30%/near predicted
monthly values
14 Dec -35 Normal Depressed 15 to 30%/near predicted
monthly values
COMMENT: On UT day 11 December, there were minor to moderate
MUF depressions across the Australian region as compared to the
monthly predicted levels. Sporadic E layers were seen across
the Australian region and in Antarctica. Similar conditions are
expected for UT days, 12-14 December, as a consequence of the
continued very low levels of ionising radiation from the Sun.
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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.
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