[Ips-wgr] IPS Weekly Geo. Report (03 April 03)
rwc
rwc at ips.gov.au
Thu Apr 3 11:13:09 EST 2003
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 03 APRIL 2003, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (25 MARCH - 02 APRIL)
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
25 Mar 1111 1212 4
26 Mar 1222 1223 7
27 Mar 4344 3334 21
28 Mar 3332 3434 17
29 Mar 3333 4434 19
30 Mar 3233 4444 20
31 Mar 3323 5543 23
01 Apr 3322 2333 12
02 Apr 2334 3333 15
*estimated from real time data
The geomagnetic activity remained mostly 'quiet' during the
first two days of the period and then increased to 'unsettled
to active' level and remained at this level until 31 March,
2003. Minor storm periods of a few hours were also observed
on 31 March. This rise in geomagnetic activity was due to a
coronal hole activity. Due to a decline in the coronal hole
activity since 01 April, the geomagnetic activity has been
mostly showing a gradual decline. However, a slight rise in
geomagnetic activity was observed on 02 April for some time.
2. FORECAST (03 APRIL - 03 MAY)
Disturbed Periods: 3, 4, 9-18, 23-30 April
Best Quiet Periods: 7, 20-22 April
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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