[Ips-wgr] IPS Weekly Geo. Report (22 January 09)
rwc at ips.gov.au
Thu Jan 22 14:23:35 EST 2009
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 22 JANUARY 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (13 JANUARY - 21 JANUARY)
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
13 Jan 2221 2212 6
14 Jan 3222 2112 7
15 Jan 2122 1222 6
16 Jan 3322 2111 7
17 Jan 1221 1111 4
18 Jan 1112 1122 4
19 Jan 4332 2222 11
20 Jan 2222 1111 5
21 Jan 1121 2222 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 Space Environment Research Center, Japan.
Quiet to unsettled conditions.
2. FORECAST (22 JANUARY - 21 FEBRUARY)
No strong recurrent patterns, however mild activity may be experienced on:
27 Jan, 30 Jan, 15 Feb.
Best Quiet Periods:
22 Jan to 26 Jan, 28 Jan to 29 Jan, 31 Jan to 14 Feb, 16 Feb to 17 Feb.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA
Central Australian Regions: NA
Southern Australian Regions: NA
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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