[Ips-wgr] IPS Weekly Geo. Report (01 April 10)
rwc at ips.gov.au
Thu Apr 1 13:06:01 EST 2010
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 01 APRIL 2010, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (23 MARCH - 31 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
23 Mar 1111 1011 2
24 Mar 1111 3211 5
25 Mar 2212 2331 8
26 Mar 1211 2003 4
27 Mar 2211 1111 4
28 Mar 1322 2111 6
29 Mar 1111 1212 4
30 Mar 2211 1122 5
31 Mar 2212 1212 5
*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 (01 APRIL - 01 MAY)
No strong recurrent patterns, however mild activity may be experienced on:
4 Apr to 5 Apr, 7 Apr to 8 Apr.
Best Quiet Periods:
1 Apr to 3 Apr, 9 Apr to 27 Apr.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Central Australian Regions:
Disturbed Periods: None.
Southern Australian Regions:
Disturbed Periods: Mild Disturbance 4 Apr to 8 Apr.
Best Quiet Periods: 2 Apr to 3 Apr, 9 Apr to 13 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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