[Ips-wgr] IPS Weekly Geo. Report (12 May 11)
rwc at ips.gov.au
Thu May 12 12:13:13 EST 2011
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 12 MAY 2011, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (03 MAY - 11 MAY)
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
03 May 3323 2222 10
04 May 2121 1311 5
05 May 2221 2121 5
06 May 1111 0001 1
07 May 1100 2321 4
08 May 1000 1001 1
09 May 1110 0101 1
10 May 1132 3322 9
11 May 1211 1110 3
*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 (12 MAY - 11 JUNE)
Quiet to Unsettled 12-13 May
Unsettled to Active 14-16, 19-23, 26-30 May
Best Quiet Periods:
18 May, 24-25 May, 31 May to 5 Jun, 7-10 Jun.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA
Central Australian Regions: NA
Southern Australian Regions:
Disturbed Periods: 30 May to 31 May.
Best Quiet Periods: 12 May to 25 May, 2 Jun to 7 Jun.
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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