[Ips-wgr] SWS Weekly Geo. Report (21 January 21) issued 0135 UT on 21 Jan 2021
rwc
rwc at ips.gov.au
Thu Jan 21 12:35:25 EST 2021
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 21 JANUARY 2021, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (12 JANUARY - 20 JANUARY)
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
12 Jan 2222 1111 5
13 Jan 1111 2002 3
14 Jan 1111 0001 1
15 Jan 1000 0211 2
16 Jan 1112 1011 3
17 Jan 1100 0001 1
18 Jan 1100 0122 2
19 Jan 2111 2121 4
20 Jan 1122 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 to unsettled conditions.
2. FORECAST (21 JANUARY - 20 FEBRUARY)
Disturbed Periods:
No strong recurrent patterns, however mild activity may be experienced on:
21 Jan, 1-2 Feb, 7-8 Feb.
Best Quiet Periods:
22-31 Jan, 4-6 Feb, 9-21 Feb.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 21 Jan to 20 Feb.
Central Australian Regions:
Mildly Disturbed Periods: 2 Feb.
Best Quiet Periods: 21 Jan to 1 Feb, 3 Feb to 20 Feb.
Southern Australian Regions:
Disturbed Periods: 2 Feb.
Best Quiet Periods: 21 Jan to 1 Feb, 3 Feb to 20 Feb.
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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