[Ips-wgr] SWS Weekly Geo. Report (28 January 21) issued 0202 UT on 28 Jan 2021

rwc rwc at ips.gov.au
Thu Jan 28 13:02:54 EST 2021


SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 28 JANUARY 2021, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (19 JANUARY - 27 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               
 19 Jan   2111 2121    4  
 20 Jan   1122 3222    7  
 21 Jan   1111 0001    1  
 22 Jan   1210 1211    3  
 23 Jan   1111 0223    5  
 24 Jan   2111 2222    5  
 25 Jan   2243 2334   15  
 26 Jan   3312 3322   10  
 27 Jan   2222 2312    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 (28 JANUARY - 27 FEBRUARY)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 28 Jan,  1-3 Feb,  21-24 Feb.

Best Quiet Periods: 
 4-19 Feb.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 4-19 Feb.

Central Australian Regions: 
 Disturbed Periods: None.
 Mildly Disturbed Periods: 28-29 Jan, 2 Feb, 22-25 Feb.
 Best Quiet Periods: 4-19 Feb.

Southern Australian Regions:
 Disturbed Periods: 28-29 Jan, 2 Feb, 22-25 Feb.
 Best Quiet Periods: 4-19 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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