[Ips-wgr] IPS Weekly Geo. Report (15 December 11) issued 0237 UT on 15 Dec 2011
rwc
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
Australian Region*
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)
Disturbed Periods:
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
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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