[Ips-wgr] IPS Weekly Geo. Report (15 December 11) issued 0237 UT on 15 Dec 2011
rwc at ips.gov.au
Thu Dec 15 13:37:17 EST 2011
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 15 DECEMBER 2011, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (06 DECEMBER - 14 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
Date K-INDICES A
06 Dec 1100 1111 2
07 Dec 1110 0012 2
08 Dec 2111 1112 4
09 Dec 1122 2212 5
10 Dec 2332 1132 9
11 Dec 2221 2322 7
12 Dec 2111 1222 5
13 Dec 2222 2122 6
14 Dec 2211 1112 4
*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 (15 DECEMBER - 14 JANUARY)
No strong recurrent patterns, however mild activity may be experienced on:
20 Dec, 26-27 Dec, 30 Dec, 6 Jan.
Best Quiet Periods:
15-19 Dec, 21-25 Dec, 28-29 Dec, 31 Dec to 5 Jan, 7-14 Jan.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 15-19 Dec, 21 Dec to 14 Jan.
Southern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 15-19 Dec, 21-25 Dec, 31 Dec to 5 Jan, 7-14 Jan.
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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