[Ips-wgr] IPS Weekly Geo. Report (07 May 09)
rwc
rwc at ips.gov.au
Thu May 7 12:01:28 EST 2009
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 07 MAY 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (28 APRIL - 06 MAY)
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
28 Apr 1210 1112 3
29 Apr 1211 1111 3
30 Apr 1111 0001 1
01 May 1112 1001 2
02 May 1111 2111 3
03 May 1111 0001 1
04 May 1212 1101 3
05 May 1110 1101 2
06 May 2211 1122 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 (07 MAY - 06 JUNE)
Disturbed Periods:
No strong recurrent patterns, however mild activity may be experienced on:
7 May to 8 May, 15 May, 2 Jun.
Best Quiet Periods:
9 May to 14 May, 16 May to 1 Jun.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 7 May to 15 May.
Southern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 7 May to 15 May.
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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