[Ips-dhfpr] IPS Daily HF Prop Report - 20 October 13 issued 2330 UT on 20 Oct 2013
Regional Warning Centre
rwc at ips.gov.au
Mon Oct 21 10:30:34 EST 2013
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 OCTOBER 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (20 OCTOBER)
Date T index Conditions
20 Oct 101 Normal-fair
Flares: none.
MUFs:
Niue Island Region:
Enhanced by 20% during local day.
Enhanced by 40% during local night.
Northern Australian Region:
Near predicted monthly values during local day.
Enhanced by 15% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
Enhanced by 30% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 25% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Sep 68
Oct 72
Nov 70
2. FORECAST (21 OCTOBER - 23 OCTOBER)
Date T index Conditions MUFs
21 Oct 90 Normal Near to 15% above predicted
monthly values
22 Oct 90 Normal Near to 15% above predicted
monthly values
23 Oct 90 Normal Near to 15% above predicted
monthly values
COMMENT: Enhanced MUF's observed across the region, partially
from enhanced ionising EUV (f10.7cm) flux from numerous spot
groups. AR1861 and 1864 rotating off the disc should have diminished
EUV flux somewhat, so extra ionisation in the Australasian region
may be due to transport by upper atmosphere (thermospheric) winds
from outside the region, usually from the northern hemisphere.
Similar ionospheric conditions are expected for the next 3 days.
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For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
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