[Ips-wgr] IPS Weekly Geo. Report (22 November 12) issued 0204 UT on 22 Nov 2012
rwc
rwc at ips.gov.au
Thu Nov 22 13:04:41 EST 2012
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 22 NOVEMBER 2012, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (13 NOVEMBER - 21 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
Australian Region*
Date K-INDICES A
13 Nov 4334 3322 16
14 Nov 3444 4112 17
15 Nov 1101 1112 3
16 Nov 2211 2122 5
17 Nov 2223 3222 9
18 Nov 1211 2112 4
19 Nov 2121 2211 5
20 Nov 2233 2332 11
21 Nov 2222 1112 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 International Center for Space Weather
Science and Education, Japan.
A weak (12nT) impulse was observed 13 Nov/0416 UT in the IPS
magnetometer data. Active on 13-14 Nov, quiet to unsettled on other
days.
2. FORECAST (22 NOVEMBER - 22 DECEMBER)
Disturbed Periods: 23-24 Nov.
Best Quiet Periods: 29 Nov to 3 Dec, 05 Dec to 08 Dec, 11 Dec to 22 Dec.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed periods: none
Best Quiet periods: 22 Nov, 26 Nov to 22 Dec
Central Australian Regions:
Mildly Disturbed periods: 23 Nov to 24 Nov
Best Quiet periods: 22 Nov, 26 Nov to 22 Dec
Southern Australian Regions:
Disturbed periods: 23 Nov to 24 Nov
Best Quiet periods: 26 Nov to 22 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
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
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