[Ips-wgr] SWS Weekly Geo. Report (26 December 19) issued 0049 UT on 26 Dec 2019
rwc at ips.gov.au
Thu Dec 26 11:49:51 EST 2019
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 26 DECEMBER 2019, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (17 DECEMBER - 25 DECEMBER)
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
17 Dec 1110 0000 1
18 Dec 2223 3322 10
19 Dec 2322 2111 6
20 Dec 1110 1201 2
21 Dec 1111 1011 2
22 Dec 2010 1011 2
23 Dec 1012 1101 2
24 Dec 1111 1100 2
25 Dec 0112 1122 4
*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 (26 DECEMBER - 25 JANUARY)
No strong recurrent patterns, however mild activity may be experienced on:
Best Quiet Periods:
27 Dec to 13 Jan, 17-21 Jan.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA
Central Australian Regions:
Mildly disturbed Periods: 15 Jan.
Best Quiet Periods:29 Dec to 13 Jan, 17-21 Jan.
Southern Australian Regions:
Disturbed Periods: 15 Jan.
Best Quiet Periods: 29 Dec to 13 Jan, 17 Dec-21 Jan.
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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