[Ips-dhfpr] IPS Daily HF Prop Report - 08 May 08
rwc
rwc at ips.gov.au
Fri May 9 09:38:48 EST 2008
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 08/2330Z MAY 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (08 MAY)
Date T index Conditions
08 May 6 Normal
Flares: none.
MUFs:
Equatorial PNG/Niue Region:
Enhanced by 15% during local day,
Variable conditions during local night.
Depressed by 20% after local dawn.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 20% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 25% over the UT day.
PCA Event : No event.
Predicted Monthly T index for May: 6
2. FORECAST (09 MAY - 11 MAY)
Date T index Conditions MUFs
09 May 6 Normal near predicted monthly values
10 May 6 Normal near predicted monthly values
11 May 6 Normal Near predicted monthly values
COMMENT: Regional foF2 and T-index generally close to monthly
average. Short-term variability in foF2 again observed Equatorial/N
Aus. although Equatorial/N Aus values sometimes below average
for an hour or two and PNG exhibited strong daytime enhancement
and near-dawn depletion. Spread-F again observed in the south-east
(HBT, NLK), particularly at night, and also in the north-west
(LEA). Normal ionospheric conditions essentially re-established
at mid latitudes and expected to continue for 2-3 days. Antarctic
ionosphere also relative stable with lower geomagnetic activity
and prolonged IMF Bz north (see Geomagnetic section), reducing
polar cap twin-cell convection .
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For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
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