[Ips-wgr] IPS Weekly Geo. Report (09 October 08)
rwc at ips.gov.au
Thu Oct 9 13:55:31 EST 2008
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 09 OCTOBER 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (30 SEPTEMBER - 08 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
30 Sep 1110 1223 5
01 Oct 2232 2322 9
02 Oct 2333 3222 11
03 Oct 2233 3223 11
04 Oct 2323 2212 8
05 Oct 2121 1112 4
06 Oct 2212 0002 3
07 Oct 2110 1111 3
08 Oct 1210 0001 2
*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 (09 OCTOBER - 08 NOVEMBER)
No strong recurrent patterns, however mild activity may be experienced on:
12 Oct to 13 Oct, 15 Oct, 29 Oct to 31 Oct.
Best Quiet Periods:
9 Oct to 11 Oct, 14 Oct, 16 Oct to 28 Oct, 1 Nov to 4 Nov.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: 28 Oct to 29 Oct.
Best Quiet Periods: 9 Oct to 10 Oct, 13 Oct to 15 Oct.
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 9 Oct to 26 Oct, 30 Oct to 3 Nov.
Southern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 9 Oct to 25 Oct, 1 Nov to 3 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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