[Ips-wgr] IPS Weekly Geo. Report (23 October 08)
rwc at ips.gov.au
Thu Oct 23 12:03:12 EST 2008
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 23 OCTOBER 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (14 OCTOBER - 22 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
14 Oct 2121 1111 4
15 Oct 2321 2112 6
16 Oct 1112 1101 3
17 Oct 1111 2011 3
18 Oct 1100 0012 2
19 Oct 2212 3332 9
20 Oct 2111 1111 3
21 Oct 2211 2112 5
22 Oct 2111 2222 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 (23 OCTOBER - 22 NOVEMBER)
No strong recurrent patterns, however mild activity may be experienced on:
29 Oct to 31 Oct, 7 Nov to 9 Nov, 11 Nov.
Best Quiet Periods:
23 Oct to 28 Oct, 1 Nov to 6 Nov, 10 Nov, 12 Nov to 18 Nov.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: 29 Oct to 30 Oct.
Best Quiet Periods: 10 Nov to 18 Nov.
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 23 Oct to 27 Oct, 31 Oct to 18 Nov.
Southern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 23 Oct to 26 Oct, 2 Nov to 7 Nov, 9 Nov to 18 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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PO Box 1386 WWW: http://www.ips.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp.ips.gov.au
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