[Ips-wgr] IPS Weekly Geo. Report (13 August 09)
rwc
rwc at ips.gov.au
Thu Aug 13 13:03:40 EST 2009
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 13 AUGUST 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (04 AUGUST - 12 AUGUST)
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
04 Aug 1210 1111 3
05 Aug 1222 2101 4
06 Aug 2242 2211 8
07 Aug 2212 1222 6
08 Aug 2210 1111 3
09 Aug 2223 2011 6
10 Aug 1111 1111 3
11 Aug 2121 1211 4
12 Aug 1221 2111 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.
Quiet to unsettled conditions.
2. FORECAST (13 AUGUST - 12 SEPTEMBER)
Disturbed Periods:
No strong recurrent patterns, however mild activity may be experienced on:
18 Aug to 19 Aug, 30 Aug, 2 Sep to 3 Sep, 5 Sep.
Best Quiet Periods:
13 Aug to 17 Aug, 20 Aug to 29 Aug, 31 Aug to 1 Sep, 4 Sep, 6 Sep to
8 Sep.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 13 Aug to 8 Sep.
Central Australian Regions:
Disturbed Periods: Mildly disturbed 18-19 August
Best Quiet Periods:
13 Aug to 17 Aug, 20 Aug to 29 Aug, 31 Aug to 1 Sep, 4 Sep, 6 Sep to
8 Sep.
Southern Australian Regions:
Disturbed Periods: Disturbed 18-19 August
Best Quiet Periods:
13 Aug to 17 Aug, 20 Aug to 29 Aug, 31 Aug to 1 Sep, 4 Sep, 6 Sep to
8 Sep.
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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