[Ips-dhfpr] IPS Daily HF Prop Report - 11 September 08
rwc at ips.gov.au
Fri Sep 12 09:48:23 EST 2008
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 11/2330Z SEPTEMBER 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (11 SEPTEMBER)
Date T index Conditions
11 Sep 0 Normal
Equatorial PNG/Niue Region:
Depressed by 25% during local day,
Depressed by 20% during local night.
Northern Australian Region:
Mostly near predicted monthly values,
Depressed by 25% after local dawn.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 15% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 15% over the UT day.
PCA Event : No event.
Predicted Monthly T index for September: 2
2. FORECAST (12 SEPTEMBER - 14 SEPTEMBER)
Date T index Conditions MUFs
12 Sep 1 Normal 0 to 5% below predicted monthly
13 Sep 0 Normal 0 to 5% below predicted monthly
14 Sep -5 Normal-Fair 5 to 15% below predicted monthly
COMMENT: MUF values across Australian/NZ regions were close to
average at mid-latitudes. There were again both large depressions
and enhancements at equatorial latitudes (Cocos Is, Vanimo, Niue).
Sub-equatorial sites (Darwin, Learmonth) also had the same pattern
but weaker. Conditions are expected to be normal to slightly
depressed compared with predicted monthly T values for the next
2 days and a recurrent coronal hole should take effect ~14th
Sept, increasing geomag activity and decreasing MUFs.
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.
IPS Radio and Space Services email: asfc at ips.gov.au
PO Box 1386 WWW: http://www.ips.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp.ips.gov.au
tel: +61 2 9213 8010 fax: +61 2 9213 8060
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