[Ips-wgr] IPS Weekly Geo. Report (05 April 01)
rwc
rwc at ips.gov.au
Thu Apr 5 11:23:11 EST 2001
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 05 APRIL 2001, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (27 MARCH - 04 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
27 Mar 4323 2345 20
28 Mar 3255 5433 27
29 Mar 2332 3423 13
30 Mar 2322 2233 10
31 Mar 7775 6776 113
01 Apr 5542 2235 25
02 Apr 4333 2234 16
03 Apr 2321 1212 6
04 Apr 2222 5442 17
*estimated from real time data
Active to minor strom conditions were observed on the 27 and
28 of March due to the arrival of CME associated with flare
activity observed on the 24 and 25 March. Severe storm conditions
were also observed on the 31 March following the arrival of a
strong shock at 0051 UT. Active to unsettled conditions followed
over the 1 and 2 of April due to sustained high solar wind speed.
A further shock was observed on the 4th of April triggering active
to minor storm conditions.
2. FORECAST (05 APRIL - 05 MAY)
Disturbed Periods:
05-12 April, flare/CME geomagnetic activity expected from region 9415
17-21 April, coronal holes
23-29 April, returning active region
Best Quiet Periods:
13-16
PEASE 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/asfc
Haymarket NSW 1240 AUSTRALIA | FTP: ftp://ftp.ips.gov.au/users/asfc/
tel: +61 2 9213 8010 | fax: +61 2 9213 8060
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