[Ips-dhfpr] IPS Daily HF Prop Report - 14 November 03
rwc
rwc at ips.gov.au
Sat Nov 15 10:28:15 EST 2003
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 14/2330Z NOVEMBER 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (14 NOVEMBER)
Date T index Conditions
14 Nov -1 Fair
Flares: none.
MUFs:
Equatorial PNG Region:
Depressed by 10 to 20% during local day,
Depressed by 35% during local night.
Northern Australian Region:
Depressed by 45% during local day,
Depressed by 20% during local night.
Southern Australian and New Zealand Region:
Depressed by 30% during local day,
Near predicted monthly values during local night.
Depressed by 20% after local dawn.
Antarctic Region (Casey/Scott Base):
Extended periods of degradation over the UT day.
PCA Event : No event.
Predicted Monthly T index for November: 52
2. FORECAST (15 NOVEMBER - 17 NOVEMBER)
Date T index Conditions MUFs
15 Nov 30 Fair 10 to 20% below predicted monthly
values
16 Nov 35 Fair 10 to 20% below predicted monthly
values
17 Nov 45 Normal-Fair near predicted monthly values
COMMENT: IPS HF Communications Warning 86 was issued on 14 November
and is current for interval 14-15 November. Persistent and occasionally
intense sporadic-E conditions observed at all latitudes. Persistent,
severe ionospheric depressions observed at low to mid latitudes.
Mid latitudes showed signs of recovery overnight, with further
depressions around local dawn. Equatorial/Northern Aus HF conditions
should be slightly better today. High latitudes can expect continuing
degraded HF conditions due to coronal hole induced geomagnetic
activity. Increased absorption observed around local mid-day
in Antarctic regions.
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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