[Ips-wgr] SWS Weekly Geo. Report (11 March 21) issued 0100 UT on 11 Mar 2021

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 11 MARCH 2021, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (02 MARCH - 10 MARCH)
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               
 02 Mar   2222 3433   12  
 03 Mar   3342 3212   12  
 04 Mar   2111 2212    5  
 05 Mar   1111 1011    2  
 06 Mar   3432 3122   12  In the SWS magnetometer data for 06 
                          Mar, a weak (9nT) impulse was observed 
                          at 0315UT.
 07 Mar   2112 0312    5  
 08 Mar   1110 1222    4  
 09 Mar   1000 1100    1  
 10 Mar   0000 0001    0  

*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 (11 MARCH - 10 APRIL)
Mildly disturbed Periods: 
 13-15 Mar, 18-20 Mar, 28-30 Mar, 9-10 Apr.

Best Quiet Periods: 
 16-17 Mar,26-27 Mar, 4-6 Apr

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: All throughout.

Central Australian Regions:
 Mildly Disturbed Periods: 19-22 Mar, 29-30 Mar, 3-4 Apr, 9-10 Apr.
 Best Quiet Periods: 16-17 Mar, 23-27 Mar.

Southern Australian Regions:
 Disturbed Periods: 19-22 Mar, 29-30 Mar, 3-4 Apr, 9-10 Apr.
 Best Quiet Periods: 16-17 Mar, 23-27 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 
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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