[Ips-wgr] IPS Weekly Geo. Report (03 September 09)
rwc at ips.gov.au
Thu Sep 3 11:34:10 EST 2009
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 03 SEPTEMBER 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (25 AUGUST - 02 SEPTEMBER)
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
25 Aug 1211 1111 3
26 Aug 2221 0011 3
27 Aug 1211 2222 5
28 Aug 2211 1111 4
29 Aug 1211 0111 3
30 Aug 2232 2432 11
31 Aug 2221 2111 5
01 Sep 2111 2111 4
02 Sep 1210 1111 3
*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 (03 SEPTEMBER - 03 OCTOBER)
No strong recurrent patterns, however mild activity may be experienced on:
3 Sep to 4 Sep, 15 Sep to 17 Sep, 26 Sep, 30 Sep.
Best Quiet Periods:
6 Sep to 14 Sep, 18 Sep to 25 Sep, 28 Sep.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 4 Sep to 30 Sep
Central Australian Regions:
Disturbed Periods: Mildly disturbed 4 Sep, 16-18 Sep
Best Quiet Periods: 5-15 Sep, 20-25 Sep, 28-29 Sep
Southern Australian Regions:
Disturbed Periods: Disturbed 4 Sep, 16-18 Sep
Best Quiet Periods: 5-15 Sep, 20-25 Sep
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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