[Ips-dhfpr] IPS Daily HF Prop Report - 13 January 11
Regional Warning Centre
rwc at ips.gov.au
Fri Jan 14 10:55:28 EST 2011
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 13/2330Z JANUARY 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (13 JANUARY)
Date T index Conditions
13 Jan 17 Normal
Cocos Island Region:
Near predicted monthly values during local day,
Depressed by 25% during local night.
Niue Island Region:
Enhanced by 25% during local day,
Depressed by 20% during local night.
Northern Australian Region:
Mostly near predicted monthly values,
Depressed by 20% after local dawn.
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: 37
2. FORECAST (14 JANUARY - 16 JANUARY)
Date T index Conditions MUFs
14 Jan 10 Normal-fair near predicted monthly values/depressed
10 to 30%
15 Jan 10 Normal-fair near predicted monthly values/depressed
10 to 30%
16 Jan 10 Normal near predicted monthly values/depressed
10 to 20%
COMMENT: IPS HF Communications Warning 2 was issued on 13 January
and is current for interval 13-14 January. variable HF conditions
observed over the last 24 hours with deressed MUFs of ~20% observed
for Equatorial regions during local night and enhanced periods
for Northen AUS region during local day. Depressed periods for
Southern AUS/NZ regions with otherwise normal ionspheric support.
Disturbed periods for Antarctic regions. Notable sproadic E observed
for Northern AUS and Southern AUS IPS stations between 10UT-20UT.
MUFs depressions of 10%-30% are expected for the next 3 days
for low to mid latitudes and disturbed conditions possible for
high latitudes due to increase in geomagnetic activity.
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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