[Ips-wgr] IPS Weekly Geo. Report (22 January 09)
rwc
rwc at ips.gov.au
Thu Jan 22 14:23:35 EST 2009
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 22 JANUARY 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (13 JANUARY - 21 JANUARY)
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
13 Jan 2221 2212 6
14 Jan 3222 2112 7
15 Jan 2122 1222 6
16 Jan 3322 2111 7
17 Jan 1221 1111 4
18 Jan 1112 1122 4
19 Jan 4332 2222 11
20 Jan 2222 1111 5
21 Jan 1121 2222 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 (22 JANUARY - 21 FEBRUARY)
Disturbed Periods:
No strong recurrent patterns, however mild activity may be experienced on:
27 Jan, 30 Jan, 15 Feb.
Best Quiet Periods:
22 Jan to 26 Jan, 28 Jan to 29 Jan, 31 Jan to 14 Feb, 16 Feb to 17 Feb.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA
Central Australian Regions: NA
Southern Australian Regions: NA
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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