[Ips-wgr] IPS Weekly Geo. Report (22 December 11) issued 0257 UT on 22 Dec 2011
rwc
rwc at ips.gov.au
Thu Dec 22 13:57:52 EST 2011
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 22 DECEMBER 2011, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (13 DECEMBER - 21 DECEMBER)
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 Dec 2222 2122 6
14 Dec 2211 1112 4
15 Dec 2110 0011 2
16 Dec 1110 0011 1
17 Dec 1110 1111 2
18 Dec 2111 1022 4
19 Dec 2322 3232 10
20 Dec 2222 1232 7
21 Dec 2112 2223 7
*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 (22 DECEMBER - 21 JANUARY)
Disturbed Periods:
No strong recurrent patterns, however mild activity may be experienced on:
25 Dec to 27 Dec.
Best Quiet Periods:
22 Dec to 24 Dec, 28 Dec onwards.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 22 Dec to 24 Dec, 28 Dec onwards.
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 22 Dec to 24 Dec, 28 Dec onwards.
Southern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 22 Dec to 24 Dec, 28 Dec onwards.
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.
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PO Box 1386 WWW: http://www.ips.gov.au
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