[Ips-wgr] ASWFC Weekly Geo. Report (02 March 23) issued 0037 UT on 02 Mar 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 02 MARCH 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (21 FEBRUARY - 01 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               
 21 Feb   2324 4212   12  
 22 Feb   2121 2212    5  
 23 Feb   3323 3333   14  
 24 Feb   2222 2001    4  
 25 Feb   1112 2324    9  
 26 Feb   3333 3155   21  In the BOM magnetometer data for 26 
                          Feb, a weak (21nT) impulse was observed 
                          at 1923UT.
 27 Feb   4456 5555   46  
 28 Feb   3333 2133   12  
 01 Mar   3112 1122    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.


Active on 26 Feb. Minor storm on 27 Feb.  Quiet to unsettled on other days.

2. FORECAST (02 MARCH - 01 APRIL)
Disturbed Periods: 
6 Mar, 14-15 Mar, 25-26 Mar.

Best Quiet Periods: 
3 Mar,  11-12 Mar,  17-18 Mar,  29-30 Mar.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 2-23 Mar.

Central Australian Regions:
 Disturbed Periods: None.
 Mildly Disturbed Periods: 6 Mar, 14-15 Mar, 25-26 Mar
 Best Quiet Periods: 2-3 Mar, 11-12 Mar, 17-18 Mar, 29-30 Mar

Southern Australian Regions:
 Disturbed Periods: 5-6 Mar,  14-15 Mar, 25-26 Mar.
 Best Quiet Periods: 2-3 Mar,  11-12 Mar,  17-18 Mar,  29-30 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.

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