[Ips-wgr] ASWFC Weekly Geo. Report (12 March 26) issued 0047 UT on 12 Mar 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 12 MARCH 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (03 MARCH - 11 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               
 03 Mar   1222 2323    8  
 04 Mar   2222 1112    5  
 05 Mar   2110 1000    2  
 06 Mar   1321 2202    6  In the BOM magnetometer data for 06 
                          Mar, a weak (8nT) impulse was observed 
                          at 0535UT.
 07 Mar   2332 2333   12  
 08 Mar   3332 3322   12  
 09 Mar   2111 2222    5  
 10 Mar   2222 2321    7  
 11 Mar   2322 2011    6  

*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 (12 MARCH - 11 APRIL)
Disturbed Periods: 
14-15 Mar,  20-22 Mar,  3-4 Apr.

Best Quiet Periods: 
 12 Mar,  17-18 Mar,  27 Mar to 1 Apr,  6-8 Apr.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
Disturbed periods: None
Mildly disturbed periods: None
Best quiet periods: 12-20 Mar, 22-Mar to 11-Apr

Central Australian Regions: 
Disturbed periods: None
Mildly disturbed periods: 21-Mar
Best quiet periods: 12-18 Mar, 27-Mar to 11-Apr

Southern Australian Regions: 
Disturbed periods: 20-22 Mar
Best quiet periods: 12-Mar, 17-18 Mar, 27-Mar to 1-Apr, 6-8 Apr


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.

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au