[Ips-wgr] IPS Weekly Geo. Report (21 February 08)
rwc
rwc at ips.gov.au
Thu Feb 21 13:38:50 EST 2008
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 21 FEBRUARY 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (12 FEBRUARY - 20 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
Australian Region*
Date K-INDICES A
12 Feb 2323 3222 10
13 Feb 2233 3322 11
14 Feb 2222 3133 9
15 Feb 2233 4222 11
16 Feb 2222 2221 6
17 Feb 2222 2111 5
18 Feb 2123 4323 12
19 Feb 2233 3221 9
20 Feb 2222 1212 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 (21 FEBRUARY - 22 MARCH)
Disturbed Periods:
Active on 8 Mar.
Best Quiet Periods:
21 Feb to 27 Feb, 2 Mar to 7 Mar, 15 Mar, 18 Mar.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 21 Feb to 26 Feb, 2 Mar to 4 Mar, 14 Mar to 17 Mar.
Southern Australian Regions:
Disturbed Periods: 11 Mar.
Best Quiet Periods: 21 Feb to 26 Feb, 1 Mar to 5 Mar, 16 Mar to 17 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
flight-line data.
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