[Ips-wgr] SWS Weekly Geo. Report (27 February 20) issued 0302 UT on 27 Feb 2020
rwc at ips.gov.au
Thu Feb 27 14:02:41 EST 2020
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 27 FEBRUARY 2020, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (18 FEBRUARY - 26 FEBRUARY)
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
Date K-INDICES A
18 Feb 1222 3333 10 A weak (7nT) impulse was observed
at 1347UT in the SWS magnetometer data for 18
19 Feb 2324 2211 9
20 Feb 1203 2222 6
21 Feb 2233 2322 10
22 Feb 2112 3321 7
23 Feb 1010 1222 3
24 Feb 1100 1002 2
25 Feb 1000 1001 1
26 Feb 1110 1121 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.
Quiet to unsettled conditions.
2. FORECAST (27 FEBRUARY - 28 MARCH)
No strong recurrent patterns, however mild activity may be experienced on:
28 Feb, 4-5 Mar, 16-17 Mar, 19-20 Mar.
Best Quiet Periods:
1-3 Mar, 6-14 Mar, 18 Mar, 21-23 Mar, 25-28 Mar.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Best Quiet Periods: 27 Feb-28 Mar.
Central Australian Regions:
Best Quiet Periods: 27 Feb-4 Mar, 07-28 Mar.
Mildly Disturbed Periods: 5-6 Mar.
Southern Australian Regions:
Best Quiet Periods: 27 Feb-4 Mar, 7-28 Mar.
Disturbed Periods: 5-6 Mar.
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
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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