[Ips-wgr] SWS Weekly Geo. Report (07 September 17) issued 0239 UT on 07 Sep 2017 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Thu Sep 7 12:39:08 EST 2017
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 07 SEPTEMBER 2017, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (29 AUGUST - 06 SEPTEMBER)
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
29 Aug 1111 1232 5
30 Aug 1110 0000 1
31 Aug 2345 5422 23 In the SWS magnetometer data for 31
Aug, a weak (14nT) impulse was observed
at 0538UT.
01 Sep 2224 4222 12
02 Sep 3343 2322 13
03 Sep 2212 2201 5
04 Sep 2212 2233 8
05 Sep 3222 1221 7
06 Sep 1222 2103 6 In the SWS magnetometer data for 06
Sep, a weak (10nT) impulse was observed
at 2344UT.
*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 31 Aug. Quiet to unsettled on other days.
2. FORECAST (07 SEPTEMBER - 07 OCTOBER)
Disturbed Periods:
7-20 Sep, 27-29 Sep.
Best Quiet Periods:
21-22 Sep, 24 Sep, 26 Sep, 3 Oct.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Mildly disturbed Periods: 7-10 Sep.
Best Quiet Periods: 21-22 Sep, 24 Sep, 26 Sep, 3 Oct.
Central Australian Regions:
Disturbed Periods: 7-10 Sep.
Mildly disturbed periods:13-20 Sep, 27-29 Sep
Best Quiet Periods: 21-22 Sep, 24 Sep, 26 Sep, 3 Oct.
Southern Australian Regions:
Disturbed Periods: 7-10 Sep, 13-20 Sep, 27-29 Sep
Best Quiet Periods: 21-22 Sep, 24 Sep, 26 Sep, 3 Oct.
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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