[Ips-wgr] IPS Weekly Geo. Report (12 April 12) issued 0420 UT on 12 Apr 2012
rwc
rwc at ips.gov.au
Thu Apr 12 14:20:48 EST 2012
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 12 APRIL 2012, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (03 APRIL - 11 APRIL)
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
03 Apr 1111 1022 3
04 Apr 2211 1322 6
05 Apr 2244 4312 15 In the IPS magnetometer data for 05
Apr, a weak (14nT) impulse was observed
at 0830UT.
06 Apr 2110 0001 2
07 Apr 2224 3101 8
08 Apr 1112 1111 3
09 Apr 1110 0012 2
10 Apr 2111 1112 4
11 Apr 2132 1012 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.
Mostly Quiet to Unsettled conditions.
2. FORECAST (12 APRIL - 12 MAY)
Disturbed Periods:
No strong recurrent patterns, however mild activity may be experienced on:
12-15 Apr, 20 Apr, 23-24 Apr, 29 Apr, 2 May, 4 May.
Best Quiet Periods:
16-19 Apr, 21-22 Apr, 25-28 Apr, 30 Apr to 1 May, 3 May, 5-8 May.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 14-27 Apr, 5 May.
Southern Australian Regions:
Disturbed Periods: 12 Apr.
Best Quiet Periods: 15-23 Apr, 27 Apr, 5 May.
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.
IPS Radio and Space Services email: asfc at ips.gov.au
PO Box 1386 WWW: http://www.ips.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp.ips.gov.au
tel: +61 2 9213 8010 fax: +61 2 9213 8060
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