[Ips-wgr] IPS Weekly Geo. Report (23 October 08)
rwc
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
Australian Region*
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)
Disturbed Periods:
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
flight-line data.
PLEASE NOTE:
Geomagnetic activity can frequently be determined by short timescale
solar events that cannot be forecast a week in advance, particularly
at solar maximum.
IPS Radio and Space Services email: asfc at ips.gov.au
PO Box 1386 WWW: http://www.ips.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp.ips.gov.au
tel: +61 2 9213 8010 fax: +61 2 9213 8060
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