[Ips-dhfpr] IPS Daily HF Prop Report - 07 January 10
rwc
rwc at ips.gov.au
Fri Jan 8 10:46:09 EST 2010
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 07/2330Z JANUARY 2010 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (07 JANUARY)
Date T index Conditions
07 Jan 3 Normal
Flares: none.
MUFs:
Cocos Island Region:
Near predicted monthly values.
Niue Island Region:
Near predicted monthly values during local day,
Depressed by 25% during local night.
Northern Australian Region:
Enhanced by 20% during local day,
Near predicted monthly values during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
PCA Event : No event.
Predicted Monthly T index for January: 3
2. FORECAST (08 JANUARY - 10 JANUARY)
Date T index Conditions MUFs
08 Jan 5 Normal near predicted monthly values
09 Jan 10 Normal near predicted monthly values
10 Jan 10 Normal near predicted monthly values
COMMENT: MUFs have picked up to near predicted monthly values,
probably due to ionising EUV and X-ray flux from the new AR1040.
Other active regions can be seen by the STEREO-B spacecraft,
rotating earthward (see solar section), and should add more extra
ionising flux in the next few days, sustaining MUFs near the
predicted monthly average and countering the interhemispheric
(south-north) winds that remove ionisation to the winter hemisphere.
Variability returned after a lull yesterday, especially at near-equatorial
latitudes. Extensive sporadic E was again observed across Australia.
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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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