[Ips-wgr] IPS Weekly Geo. Report (20 March 08)
rwc
rwc at ips.gov.au
Thu Mar 20 13:47:14 EST 2008
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 20 MARCH 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (11 MARCH - 19 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
Australian Region*
Date K-INDICES A
11 Mar 2334 4322 15
12 Mar 2332 2132 9
13 Mar 2334 4222 14
14 Mar 2233 3322 11
15 Mar 3334 2211 11 A weak (23nT) impulse was observed in the IPS
magnetometer data at 1018UT on 15 Mar.
16 Mar 2221 2212 6
17 Mar 2211 1222 5
18 Mar 2322 2212 7
19 Mar 1221 4211 7
*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 (20 MARCH - 19 APRIL)
Disturbed Periods:
active 26 Mar to 28 Mar, active 5 Apr to 6 Apr.
Best Quiet Periods:
20 Mar to 24 Mar, 30 Mar to 31 Mar, 2 Apr to 3 Apr, 12 Apr to 13 Apr.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 20 Mar to 23 Mar, 29 Mar to 2 Apr, 12 Apr to 15 Apr.
Southern Australian Regions:
Disturbed Periods: 26 Mar.
Best Quiet Periods: 20 Mar to 21 Mar, 29 Mar to 3 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
flight-line data.
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