[Ips-wgr] IPS Weekly Geo. Report (30 October 08)
rwc at ips.gov.au
Thu Oct 30 13:44:35 EST 2008
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 30 OCTOBER 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (21 OCTOBER - 29 OCTOBER)
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
21 Oct 2211 2112 5
22 Oct 2111 2222 5
23 Oct 2221 1111 4
24 Oct 1210 1001 2
25 Oct 1110 1111 2
26 Oct 1322 2202 6
27 Oct 2120 0001 2
28 Oct 1222 1233 8
29 Oct 2342 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.
2. FORECAST (30 OCTOBER - 29 NOVEMBER)
No strong recurrent patterns, however mild activity may be experienced on:
30 Oct to 31 Oct, 7 Nov to 9 Nov, 11 Nov, 25 Nov.
Best Quiet Periods:
1 Nov to 6 Nov, 10 Nov, 12 Nov to 24 Nov.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: 30 Oct.
Best Quiet Periods: 10 Nov to 24 Nov.
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 31 Oct to 24 Nov.
Southern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 2 Nov to 7 Nov, 9 Nov to 24 Nov.
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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