[Ips-dhfpr] IPS Daily HF Prop Report - 30 December 03
rwc
rwc at ips.gov.au
Wed Dec 31 10:29:31 EST 2003
SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 30/2330Z DECEMBER 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (30 DECEMBER)
Date T index Conditions
30 Dec 84 Normal
Flares: none.
MUFs:
Equatorial PNG Region:
Enhanced by 15-20% over the UT day.
Northern Australian Region:
Enhanced by 50% during local day,
Enhanced by 15% during local night.
Southern Australian and New Zealand Region:
Enhanced by 15-20% over the UT day.
Antarctic Region (Casey/Scott Base):
Enhanced by 15% over the UT day.
PCA Event : No event.
Predicted Monthly T index for December: 50
2. FORECAST (31 DECEMBER - 02 JANUARY)
Date T index Conditions MUFs
31 Dec 75 Normal 5 to 10% above predicted monthly
values
01 Jan 50 Normal-fair Near predicted monthly values
02 Jan 40 Normal-fair Near predicted monthly values
COMMENT: The post-dawn improving trend observed yesterday did
not continue into the day, and regional MUFs were somewhat less
than for previous days, but still well above normal monthly values.
Extended periods of spread-F conditions were observed at high
latitudes. Isolated periods of intense sporadic-E conditions
were observed at some mid-latitude stations. Solar wind parameters
indicate the possible onset of the anticipated coronal hole wind
stream early today. Expect periods of degradation and disturbance
mainly at mid to high latitudes for the next few days, possibly
extending into next week.
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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