[Ips-wgr] IPS Weekly Geo. Report (01 January 09)
rwc at ips.gov.au
Thu Jan 1 12:29:40 EST 2009
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 01 JANUARY 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (23 DECEMBER - 31 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
23 Dec 2222 2332 9
24 Dec 2232 1211 6
25 Dec 2112 2122 5
26 Dec 2210 1112 4
27 Dec 1111 1112 3
28 Dec 2112 1101 3
29 Dec 1111 0011 2
30 Dec 1110 1012 2
31 Dec 4333 2222 12
*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 (01 JANUARY - 31 JANUARY)
No strong recurrent patterns, however mild activity may be experienced on:
1 Jan to 2 Jan, 19 Jan.
Best Quiet Periods:
3 Jan to 18 Jan, 20 Jan to 27 Jan.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Best Quiet periods: 03 Jan to 26 Jan.
Central Australian Regions:
Best Quiet periods: 03 Jan to 18 Jan, 20 Jan to 27 Jan.
Southern Australian Regions:
Disturbed periods: 01 to 03 Jan, 19 Jan.
Best quiet periods: 04 Jan to 12 Jan, 14 Jan to 18 Jan,
20 Jan to 26 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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