[Ips-wgr] SWS Weekly Geo. Report (08 August 19) issued 0235 UT on 08 Aug 2019
rwc
rwc at ips.gov.au
Thu Aug 8 12:35:44 EST 2019
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 08 AUGUST 2019, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (30 JULY - 07 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
30 Jul 0001 3322 5
31 Jul 2121 0011 3
01 Aug 2111 0012 3
02 Aug 1110 0000 1
03 Aug 1100 0000 0
04 Aug 0121 1001 2 In the SWS magnetometer data for 04
Aug, a weak (7nT) impulse was observed
at 0717UT.
05 Aug 1345 6322 25
06 Aug 2223 4212 10
07 Aug 2111 1111 3
*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 5 Aug. Quiet to unsettled on other days.
2. FORECAST (08 AUGUST - 07 SEPTEMBER)
Disturbed Periods:
Mild activity may be experienced on:
10 Aug, 17-18 Aug, 27 Aug.
Active to minor storm levels are possible on
31 Aug to 2 Sep.
Best Quiet Periods:
8-9 Aug, 11-16 Aug, 20-26 Aug, 30 Aug.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 8-30 Aug, 3-7 Sep.
Central Australian Regions:
Disturbed Periods: None.
Mildly Disturbed Periods: 27-29 Aug, 31 Aug to 3 Sep.
Best Quiet Periods: 8-26 Aug, 30 Aug, 4-7 Sep.
Southern Australian Regions:
Disturbed Periods: 27-29 Aug, 31 Aug to 3 Sep.
Best Quiet Periods: 8-26 Aug, 30 Aug, 4-7 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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