[Ips-wgr] IPS Weekly Geo. Report (20 November 08)
Regional Warning Centre
rwc at ips.gov.au
Thu Nov 20 14:30:06 EST 2008
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 20 NOVEMBER 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (11 NOVEMBER - 19 NOVEMBER)
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
11 Nov 1111 0011 2
12 Nov 1111 1111 3
13 Nov 1111 0011 2
14 Nov 1111 0112 3
15 Nov 2210 0123 5
16 Nov 3322 3122 9
17 Nov 2211 0011 3
18 Nov 1110 0111 2
19 Nov 1211 1111 3
*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 (20 NOVEMBER - 20 DECEMBER)
No strong recurrent patterns, however mild activity may be experienced on:
25 Nov to 26 Nov, 4 Dec to 6 Dec, 13 Dec.
Best Quiet Periods:
20 Nov to 24 Nov, 27 Nov to 3 Dec, 7 Dec to 12 Dec, 14 Dec to 16 Dec.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 20 Nov to 7 Dec.
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 20 Nov to 24 Nov, 27 Nov to 7 Dec.
Southern Australian Regions:
Disturbed Periods: 25 Nov to 26 Nov.
Best Quiet Periods: 20 Nov to 23 Nov, 28 Nov to 7 Dec.
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.
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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