[Ips-wgr] IPS Weekly Geo. Report (18 December 03)
rwc
rwc at ips.gov.au
Thu Dec 18 13:09:58 EST 2003
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 18 DECEMBER 2003, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (09 DECEMBER - 17 DECEMBER)
K indices are in UT (0-24). For conversion to local time:
AEST = UT + 10 hours; ACST = UT + 9.5 hours; AWST = UT + 8 hours
Australian Region*
Date K-INDICES A
09 Dec 2344 4334 20
10 Dec 4344 4544 28
11 Dec 3344 4333 19
12 Dec 3333 4333 16
13 Dec 3333 4333 16
14 Dec 3333 4343 18
15 Dec 4334 4223 17
16 Dec 2223 2222 8
17 Dec 2222 2212 6
*estimated from real time data
At the beginning of the week the Earth was under the influence of
a high speed solar wind stream of coronal hole origin. Solar
wind speeds of around 800 km/s persisted until mid-week, before
gradually declining over a period of days. Active to storm
conditions were observed until late in the week, when conditions
returned to unsettled, tending to quiet by end of week.
2. FORECAST (18 DECEMBER - 17 JANUARY)
Disturbed Periods:
19-20 Dec, 04-11 Jan.
Best Quiet Periods:
29-31 Dec.
PLEASE NOTE:
At this time of the solar cycle, space weather conditions
are frequently determined by short timescale events, not
able to be forecasted a week in advance.
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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