[Ips-wgr] SWS Weekly Geo. Report (23 February 17) issued 0247 UT on 23 Feb 2017 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Thu Feb 23 13:47:16 EST 2017
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 23 FEBRUARY 2017, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (14 FEBRUARY - 22 FEBRUARY)
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
14 Feb 0100 0011 1
15 Feb 1011 1121 3
16 Feb 1221 3331 8
17 Feb 2333 3323 13
18 Feb 3322 2222 9
19 Feb 2221 2210 5
20 Feb 1221 2222 6
21 Feb 1110 0001 1
22 Feb 2213 1211 6
*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 International Center for Space Weather
Science and Education, Japan.
Mostly quiet to unsettled conditions. Isolated active periods observed on 17
February.
2. FORECAST (23 FEBRUARY - 25 MARCH)
Disturbed Periods:
23-24 Feb, 27 Feb to 2 Mar, 16 Mar.
Best Quiet Periods:
26 Feb, 6-14 Mar, 19-20 Mar.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Quiet
Central Australian Regions:
Mildly disturbed on 23-24 Feb, 27 Feb-6 Mar, 17-18 Mar, 22-23 Mar
Southern Australian Regions:
Disturbed on 23-24 Feb, 27 Feb-6 Mar, 17-18 Mar, 22-23 Mar
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.
Space Weather Services email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386 WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010 fax: +61 2 9213 8060
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