[Ips-wgr] IPS Weekly Geo. Report (02 April 09)
rwc
rwc at ips.gov.au
Thu Apr 2 12:20:22 EST 2009
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 02 APRIL 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (24 MARCH - 01 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
24 Mar 2222 3312 8
25 Mar 2232 1112 6
26 Mar 2221 2122 6
27 Mar 1111 2232 6
28 Mar 2111 0022 3
29 Mar 2212 1112 5
30 Mar 2211 2111 4
31 Mar 2211 3011 5
01 Apr 2111 0012 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.
Mostly Quiet to Unsettled conditions for the forecast period
02Apr-10Apr, with possible Active conditions on 04Apr.
2. FORECAST (02 APRIL - 02 MAY)
Disturbed Periods:
No strong recurrent patterns, however mild activity may be experienced on:
3 Apr to 4 Apr, 9 Apr to 10 Apr, 17 Apr, 20 Apr to 21 Apr.
Best Quiet Periods:
2 Apr, 5 Apr to 8 Apr, 11 Apr to 16 Apr, 18 Apr to 19 Apr, 22 Apr to
28 Apr.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 2 Apr to 18 Apr.
Southern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 2 Apr to 18 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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