[Ips-wgr] IPS Weekly Geo. Report (05 March 09)
rwc at ips.gov.au
Thu Mar 5 13:33:43 EST 2009
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 05 MARCH 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (24 FEBRUARY - 04 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
24 Feb 2222 1112 5
25 Feb 1212 1012 4
26 Feb 2211 1112 4
27 Feb 2223 3222 9
28 Feb 2321 1112 6
01 Mar 1221 1011 3
02 Mar 1211 1011 3
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
*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 (05 MARCH - 04 APRIL)
No strong recurrent patterns, however mild activity may be experienced on:
14 Mar, 26 Mar.
Best Quiet Periods:
5 Mar to 13 Mar, 15 Mar to 25 Mar, 27 Mar to 31 Mar.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed periods: None
Central Australian Regions:
Disturbed periods: 14 Mar, 26-27 Mar
Southern Australian Regions:
Disturbed periods: 13-14 Mar, 26-27 Mar
Best quiet periods: 05-12 Mar, 17-24 Mar, 29 Mar - 04 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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