[Ips-wgr] IPS Weekly Geo. Report (11 September 08)
rwc
rwc at ips.gov.au
Thu Sep 11 12:37:55 EST 2008
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 11 SEPTEMBER 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (02 SEPTEMBER - 10 SEPTEMBER)
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
02 Sep 1111 1001 2
03 Sep 1232 1322 8
04 Sep 4443 4322 19
05 Sep 2112 3122 6
06 Sep 2212 2212 6
07 Sep 2221 3131 7
08 Sep 2222 2222 7
09 Sep 2221 1012 4
10 Sep 2221 1111 4
*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.
active on 4 Sep.
quiet to unsettled on other days.
2. FORECAST (11 SEPTEMBER - 11 OCTOBER)
Disturbed Periods:
active on 1 Oct.
Best Quiet Periods:
11 Sep to 13 Sep, 16 Sep to 29 Sep, 6 Oct to 7 Oct.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 11 Sep to 1 Oct, 6 Oct to 7 Oct.
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 11 Sep to 7 Oct.
Southern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 11 Sep to 13 Sep, 16 Sep to 1 Oct, 6 Oct to 7 Oct.
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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