[Ips-wgr] SWS Weekly Geo. Report (31 August 17) issued 0108 UT on 31 Aug 2017 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Thu Aug 31 11:08:48 EST 2017
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 31 AUGUST 2017, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (22 AUGUST - 30 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
22 Aug 4432 3212 13
23 Aug 2233 4441 16
24 Aug 2332 3200 8
25 Aug 1111 2101 3
26 Aug 0110 1200 2
27 Aug 1112 1332 7
28 Aug 1111 0000 1
29 Aug 1111 1232 5
30 Aug 1110 0000 1
*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.
Active on 23 Aug. Quiet to unsettled on other days.
2. FORECAST (31 AUGUST - 30 SEPTEMBER)
Disturbed Periods:
31 Aug to 1 Sep, 13-19 Sep.
Best Quiet Periods:
3-6 Sep, 9-12 Sep, 21-22 Sep
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 3-6 Sep, 9-12 Sep, 21-22 Sep.
Central Australian Regions:
Disturbed Periods: None.
Mildly Disturbed Periods: 31 Aug to 1 Sep, 13-19 Sep.
Best Quiet Periods: 3-6 Sep, 9-12 Sep, 21-22 Sep.
Southern Australian Regions:
Disturbed Periods: 31 Aug to 1 Sep, 13-19 Sep..
Best Quiet Periods: 3-6 Sep, 9-12 Sep, 21-22 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.
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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