[Ips-wgr] IPS Weekly Geo. Report (12 March 09)
rwc at ips.gov.au
Thu Mar 12 13:44:38 EST 2009
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 12 MARCH 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (03 MARCH - 11 MARCH)
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
Date K-INDICES A
03 Mar 2232 2322 9 A weak (11nT) impulse was observed in the IPS
magnetometer data at 0603UT on 03 Mar.
04 Mar 2222 2212 6
05 Mar 2210 0011 2
06 Mar 2211 1001 3
07 Mar 1110 0112 2
08 Mar 2233 3311 10
09 Mar 1111 1101 2
10 Mar 1110 1211 3
11 Mar 2221 1012 4
*estimated from real time data
NOTE: Indices may have been generated from data obtained in
cooperation with the following organisations: Geoscience Australia,
University of Newcastle Space Physics Group, Australian Government
Antarctic Division and Space Environment Research Center, Japan.
Quiet to unsettled conditions.
2. FORECAST (12 MARCH - 11 APRIL)
active on 13 Mar.
Best Quiet Periods:
12 Mar, 15-21 Mar, 23-25 Mar, 27-29 Mar, 31 Mar-3 Apr, 5 Apr-8 Apr.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: Quiet for March.
Central Australian Regions: Mildly disturbed 13-14 March and 27-28 March,
otherwise quiet for the month.
Southern Australian Regions:
Disturbed Periods: 13-14 March and 27-28 March, otherwise quiet for the Month.
Best Quiet Periods: 12 Mar, 15 Mar to 25 Mar, 28 Mar to 7 Apr.
Pc3 pulsations are high frequency (10-45 second period) variations
of the Earths magnetic field. Daily pc3-indices are the daily sum of
20 minute pc3-indices for that station and have been shown to be well
correlated with rejection of high resolution aeromagnetic survey
Geomagnetic activity can frequently be determined by short timescale
solar events that cannot be forecast a week in advance, particularly
at solar maximum.
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