[Ips-wgr] SWS Weekly Geo. Report (28 October 21) issued 0045 UT on 28 Oct 2021
rwc
rwc at ips.gov.au
Thu Oct 28 11:45:05 EST 2021
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 28 OCTOBER 2021, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (19 OCTOBER - 27 OCTOBER)
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
19 Oct 2212 2442 11
20 Oct 2201 2212 5
21 Oct 2211 1221 5
22 Oct 1011 2112 3
23 Oct 1100 0021 2
24 Oct 1101 1211 3
25 Oct 1110 1311 4
26 Oct 2110 1112 3
27 Oct 1011 1012 2
*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 to unsettled conditions.
2. FORECAST (28 OCTOBER - 27 NOVEMBER)
Disturbed Periods:
No strong recurrent patterns, however mild activity may be experienced on:
2-3 Nov, 6-7 Nov, 12-15 Nov.
Best Quiet Periods:
28 Oct to 1 Nov, 4-5 Nov, 8-10 Nov, 19-27 Nov.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 28 Oct to 27 Nov.
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 28 Oct to 15 Nov, 19-27 Nov.
Southern Australian Regions:
Disturbed Periods: 16-17 Nov.
Best Quiet Periods: 28 Oct to 15 Nov, 19-27 Nov.
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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