[Ips-wgr] SWS Weekly Geo. Report (02 September 21) issued 0203 UT on 02 Sep 2021

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 02 SEPTEMBER 2021, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (24 AUGUST - 01 SEPTEMBER)
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               
 24 Aug   1111 0022    3  
 25 Aug   2221 1210    4  
 26 Aug   1112 1011    3  
 27 Aug   2124 4332   13  In the SWS magnetometer data for 27 
                          Aug, a weak (9nT) impulse was observed 
                          at 0117UT and a weak (10nT) impulse 
                          was observed at 1234UT.
 28 Aug   2123 2211    6  
 29 Aug   2211 0222    5  In the SWS magnetometer data for 29 
                          Aug, a weak (8nT) impulse was observed 
                          at 2041UT.
 30 Aug   2231 2012    6  
 31 Aug   1211 1101    3  
 01 Sep   1112 1101    3  

*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 (02 SEPTEMBER - 02 OCTOBER)
Disturbed Periods: 
2 Sep, 23-24 Sep.

Best Quiet Periods: 
 5-10 Sep,  15-19 Sep.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
 Disturbed Periods: None.
 Best Quiet Periods: 04-19 Sep, 25-28 Sep.

Central Australian Regions: NA
 Mildly disturbed Periods: 2 Sep, 21 Sep
 Best Quiet Periods: 04-19 Sep, 25-28 Sep.

Southern Australian Regions:
 Disturbed Periods: 2 Sep, 21 Sep.
 Best Quiet Periods: 04-19 Sep, 25-28 Sep.


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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