[Ips-wgr] SWS Weekly Geo. Report (24 September 20) issued 0220 UT on 24 Sep 2020
rwc
rwc at ips.gov.au
Thu Sep 24 12:20:50 EST 2020
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 24 SEPTEMBER 2020, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (15 SEPTEMBER - 23 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
15 Sep 2111 0011 2
16 Sep 0111 0010 1
17 Sep 1121 0001 2
18 Sep 1100 2110 2
19 Sep 1110 0100 1
20 Sep 0102 2102 3
21 Sep 1101 0012 2
22 Sep 1221 2100 3
23 Sep 1222 3222 7
*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.
Quiet, with quiet to unsettled conditions on 23 Sep.
2. FORECAST (24 SEPTEMBER - 24 OCTOBER)
Disturbed Periods:
No strong recurrent patterns, however mild activity may be experienced on:
24-29 Sep, 1 Oct, 11 Oct, 21-24 Oct.
Best Quiet Periods:
30 Sep, 2-10 Oct, 12-20 Oct.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 24 Sep to 24 Oct.
Central Australian Regions:
Mildly Disturbed Periods: 25-29 Sep, 22-24 Oct.
Best Quiet Periods: 24 Sep, 30 Sep to 21 Oct.
Southern Australian Regions:
Disturbed Periods: 25-29 Sep, 22-24 Oct.
Best Quiet Periods: 24 Sep, 30 Sep to 21 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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