[Ips-wgr] IPS Weekly Geo. Report (22 May 08)
rwc at ips.gov.au
Thu May 22 11:57:39 EST 2008
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 22 MAY 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (13 MAY - 21 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
13 May 1211 2111 4
14 May 1111 1111 3
15 May 1211 1112 4
16 May 2212 2112 5
17 May 2111 0101 2
18 May 1212 1012 4
19 May 2223 2211 7
20 May 2222 3222 8
21 May 3333 2322 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.
Geomagnetic activity remained mostly at quiet levels during this period
with quiet to unsettled conditions from 19 to 21 May due to the effect
of a coronal hole.
2. FORECAST (22 MAY - 21 JUNE)
Unsettled to active on 17 Jun.
Best Quiet Periods:
3 Jun to 14 Jun.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 25 May to 29 May, 4 Jun to 11 Jun.
Southern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 22 May to 28 May, 4 Jun to 11 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
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