[Ips-wgr] SWS Weekly Geo. Report (17 September 20) issued 0239 UT on 17 Sep 2020

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 17 SEPTEMBER 2020, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (08 SEPTEMBER - 16 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               
 08 Sep   1000 0210    1  
 09 Sep   1000 0001    0  
 10 Sep   0110 0001    1  
 11 Sep   0110 0011    1  
 12 Sep   1111 0111    2  
 13 Sep   0120 0213    4  
 14 Sep   2223 3002    7  
 15 Sep   2111 0011    2  
 16 Sep   0111 0010    1  

*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 (17 SEPTEMBER - 17 OCTOBER)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 27-28 Sep.

Best Quiet Periods: 
 18-22 Sep,  30 Sep,  2-10 Oct,  12-13 Oct.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.

Central Australian Regions: NA
Disturbed Periods: Mildly disturbed 27 to 29 Sep.

Southern Australian Regions:
 Disturbed Periods: Disturbed 27 to 29 Sep.
 Best Quiet Periods: 17-26 Sep,  30 Sep to 13 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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