[Ips-wgr] IPS Weekly Geo. Report (16 February 12) issued 0250 UT on 16 Feb 2012
rwc at ips.gov.au
Thu Feb 16 13:50:35 EST 2012
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 16 FEBRUARY 2012, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (07 FEBRUARY - 15 FEBRUARY)
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
07 Feb 2223 4233 12
08 Feb 2322 3122 8
09 Feb 2212 3222 7
10 Feb 2221 1122 5
11 Feb 2221 2112 5
12 Feb 2112 1112 4
13 Feb 2232 3432 12 In the IPS magnetometer data for 13 Feb, a weak
was observed at 0509UT.
14 Feb 2232 2223 9
15 Feb 2333 3333 14
*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 with isolated active periods.
2. FORECAST (16 FEBRUARY - 17 MARCH)
No strong recurrent patterns, however mild activity may be experienced on:
16 Feb, 18-21 Feb, 2-3 Mar, 6 Mar, 11-12 Mar.
Best Quiet Periods:
22 Feb to 1 Mar, 4-5 Mar, 7-10 Mar.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 21 Feb to 17 Mar.
Central Australian Regions:
Disturbed Periods: 19th-20th Feb
Best Quiet Periods: 22 Feb to 11 Mar.
Southern Australian Regions:
Disturbed Periods: 18th-20th Feb
Best Quiet Periods: 23 Feb to 5 Mar, 8-11 Mar.
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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