[Ips-wgr] SWS Weekly Geo. Report (09 September 21) issued 0248 UT on 09 Sep 2021

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 09 SEPTEMBER 2021, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (31 AUGUST - 08 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               
 31 Aug   1211 1101    3  
 01 Sep   1112 1101    3  
 02 Sep   0111 1100    1  
 03 Sep   0114 3111    7  
 04 Sep   1113 1111    4  
 05 Sep   1111 2200    3  
 06 Sep   1110 0212    3  
 07 Sep   0112 2222    5  
 08 Sep   2124 3211    9  

*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 (09 SEPTEMBER - 09 OCTOBER)
Disturbed Periods: 
No strong recurrent patterns, however mild to moderate activity may be
experienced on:
 11 Sep.

Best Quiet Periods: 
 9 Sep,  12-22 Sep,  24 Sep-4 Oct.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 9 Sep to 6 Oct.

Central Australian Regions: 
 Disturbed Periods: None.
 Best Quiet Periods: 9 Sep to 6 Oct.

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 9 Sep to 6 Oct.


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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