[Ips-dhfpr] IPS Daily HF Prop Report - 18 October 05
rwc at ips.gov.au
Wed Oct 19 09:56:49 EST 2005
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z OCTOBER 2005 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (18 OCTOBER)
Date T index Conditions
18 Oct 10 Normal
near predicted monthly values
PCA Event : No event.
Predicted Monthly T index for October: 23
2. FORECAST (19 OCTOBER - 21 OCTOBER)
Date T index Conditions MUFs
19 Oct 10 Normal 10 to 20% below predicted monthly
20 Oct 12 Normal 10 to 20% below predicted monthly
21 Oct 14 Normal 5 to 10% below predicted monthly
COMMENT: The equatorial ionosphere is still showing a strong
depression at night in some locations. Mid-latitudes appear mostly
normal. There was evidence of nightime sporadi E at sub-quatorial
latitudes (e.g. Darwin) and spread F conditions a southrnsites
(e.g. Hobart, Macquarie Is). High latitudes are still moderately
disturbed by remnant polar cap convective flows from the last
days extended geomagnetic merging with the solar magnetic field
(IMF), which is now on the wane.
For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Gloassary 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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