[Ips-wgr] IPS Weekly Geo. Report (16 October 08)
rwc at ips.gov.au
Thu Oct 16 13:14:29 EST 2008
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 16 OCTOBER 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (07 OCTOBER - 15 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
07 Oct 2110 1111 3
08 Oct 1210 0001 2
09 Oct 1110 0011 1
10 Oct 1211 1102 3
11 Oct 2243 4432 16
12 Oct 2333 3222 11
13 Oct 2222 2112 6
14 Oct 2121 1111 4
15 Oct 2321 2112 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.
Active on 11 Oct.
Quiet to unsettled on other days.
2. FORECAST (16 OCTOBER - 15 NOVEMBER)
No strong recurrent patterns, however mild activity may be experienced on:
29 Oct to 31 Oct, 7 Nov to 9 Nov.
Best Quiet Periods:
16 Oct to 28 Oct, 1 Nov to 6 Nov, 10 Nov to 11 Nov.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: 28 Oct to 29 Oct.
Best Quiet Periods: 10 Nov.
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 16 Oct to 26 Oct, 30 Oct to 10 Nov.
Southern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 16 Oct to 25 Oct, 1 Nov to 6 Nov, 8 Nov to 10 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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