[Ips-dhfpr] IPS Daily HF Prop Report - 16 April 06
rwc at ips.gov.au
Mon Apr 17 09:33:54 EST 2006
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 16/2330Z APRIL 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (16 APRIL)
Date T index Conditions
16 Apr 4 Fair-normal
Equatorial PNG/Niue Region:
Mostly near predicted monthly values.
Northern Australian Region:
Depressed by 15% during local day,
Near predicted monthly values during local night.
Southern Australian and New Zealand Region:
Depressed by 25% over the UT day.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Extended periods of disturbance.
PCA Event : No event.
Predicted Monthly T index for April: 16
2. FORECAST (17 APRIL - 19 APRIL)
Date T index Conditions MUFs
17 Apr 5 Fair-normal depressed 10 to 20%/near predicted
18 Apr 5 Fair-normal depressed 10 to 20%/near predicted
19 Apr 10 Normal Near predicted monthly values
COMMENT: Variable regional HF conditions observed again under
the influence of a high speed coronal hole wind stream. S Aus/NZ
MUFs generally depressed, especially around local dawn. Sporadic
E conditions observed some stations around local dawn. S Ocean/Antarctic
conditions poor with extended periods of disturbance. The disturbance
is due to a coronal hole wind stream which is expected to decline
days one and two. Expect continuing variable HF conditions next
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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