[Ips-wgr] IPS Weekly Geo. Report (19 March 09)
rwc
rwc at ips.gov.au
Thu Mar 19 13:08:24 EST 2009
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 19 MARCH 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (10 MARCH - 18 MARCH)
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
10 Mar 1110 1211 3
11 Mar 2221 1012 4
12 Mar 3222 1113 7
13 Mar 3333 3322 13
14 Mar 2233 1322 9
15 Mar 2232 2102 6
16 Mar 2122 1221 5
17 Mar 1211 1212 4
18 Mar 1111 2001 2
*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 (19 MARCH - 18 APRIL)
Disturbed Periods:
No strong recurrent patterns, however mild activity may be experienced on:
26 Mar, 4 Apr, 9 Apr to 10 Apr.
Best Quiet Periods:
19 Mar to 25 Mar, 27 Mar to 3 Apr, 5 Apr to 8 Apr, 11 Apr to 14 Apr.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 11 Apr - Mildly disturbed
Central Australian Regions: 19-20 Mar,26-27 Mar,9-10 Apr - Mildly disturbed,
11 Apr - Disturbed.
Southern Australian Regions: 19-20 Mar, 26-27 Mar, 9-11 Apr - Disturbed
Best Quiet periods: 19-25 Mar, 28 Mar - 8 Apr, 12-14 Apr
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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