[Ips-dhfpr] IPS Daily HF Prop Report - 05 February 12 issued 2332 UT on 05 Feb 2012
rwc
rwc at ips.gov.au
Mon Feb 6 10:32:29 EST 2012
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 04/2330Z FEBRUARY 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (04 FEBRUARY)
Date T index Conditions
04 Feb 77 Normal
Flares: none.
MUFs:
Niue Island Region:
Mostly near predicted monthly values.
Enhanced by 20% after local dawn.
Northern Australian Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Southern Australian and New Zealand 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.
Predicted Monthly T index for February: 80
2. FORECAST (05 FEBRUARY - 07 FEBRUARY)
Date T index Conditions MUFs
05 Feb 75 Normal Near predicted monthly values
06 Feb 75 Normal Near predicted monthly values
07 Feb 70 Normal 0 to 5% below predicted monthly
values
COMMENT: MUFs were depressed ~15% at Mid-latitudes during the
daytime, probably from the decreased EUV and X-ray ionising flux
from the low number of sunspots which are all fairly small and
low activity. However, in an opposite trend, Equatorial latitudes
had enhanced MUFs near local noon, probably due to transport
of ionisation by thermospheric neutral winds into the region.
Nighttime values were close to monthly medians at Mid-latitudes.
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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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