[Ips-wgr] IPS Weekly Geo. Report (19 May 11)
rwc
rwc at ips.gov.au
Thu May 19 13:10:10 EST 2011
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 19 MAY 2011, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (10 MAY - 18 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
10 May 1132 3322 9
11 May 1211 1110 3
12 May 1000 0001 0
13 May 1111 1101 2
14 May 1100 0101 1
15 May 2213 2222 7
16 May 2233 3122 9
17 May 2123 2212 7
18 May 1111 1110 2
*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.
Primarly Quiet conditions have been observed during the previous week.
2. FORECAST (19 MAY - 18 JUNE)
Disturbed Periods:
27 May to 30 May, 11 Jun to 14 Jun
Best Quiet Periods:
19 May to 25 May, 2 May to 9 May.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 19 May to 25 May, 1 Jun to 11 Jun.
Central Australian Regions:
Disturbed Periods: 27 May to 31 May, 12 Jun to 13 Jun.
Best Quiet Periods: 19 May to 25 May, 1 Jun to 11 Jun.
Southern Australian Regions:
Disturbed Periods: 27 May to 31 May, 12 Jun to 14 Jun.
Best Quiet Periods: 19 May to 25 May, 2 Jun to 10 Jun.
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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