[Ips-wgr] IPS Weekly Geo. Report (21 August 08)
rwc
rwc at ips.gov.au
Thu Aug 21 12:18:24 EST 2008
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 21 AUGUST 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (12 AUGUST - 20 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
12 Aug 2222 2211 6
13 Aug 1211 2111 4
14 Aug 2321 2011 5
15 Aug 2210 0100 2
16 Aug 2221 0112 4
17 Aug 3112 2111 5
18 Aug 2224 4322 13
19 Aug 2223 2221 7
20 Aug 2212 2111 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.
Quiet to unsettled conditions.
2. FORECAST (21 AUGUST - 20 SEPTEMBER)
Disturbed Periods:
No strong recurrent patterns, however mild activity may be experienced on:
5 Sep to 6 Sep, 14 Sep to 16 Sep.
Best Quiet Periods:
21 Aug to 4 Sep, 7 Sep to 13 Sep.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA
Central Australian Regions: NA
Southern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 21 Aug to 2 Sep, 7 Sep to 12 Sep, 15 Sep to 16 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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