[Ips-wgr] SWS Weekly Geo. Report (12 September 19) issued 0204 UT on 12 Sep 2019

rwc rwc at ips.gov.au
Thu Sep 12 12:04:06 EST 2019


SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 12 SEPTEMBER 2019, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (03 SEPTEMBER - 11 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               
 03 Sep   2222 2111    5  
 04 Sep   2223 3222    9  
 05 Sep   2322 2212    7  
 06 Sep   1222 1111    4  
 07 Sep   1121 2111    4  
 08 Sep   1222 1112    5  
 09 Sep   2233 3311   10  
 10 Sep   1112 3000    3  
 11 Sep   0122 1100    2  

*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 SEPTEMBER - 12 OCTOBER)
Disturbed Periods: 
27-29 Sep.

Best Quiet Periods: 
 12-22 Sep,  24-25 Sep, 7-8 Oct.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Mildly disturbed Periods: None.
 Best Quiet Periods: 12-26 Sep, 3-8 Oct.

Central Australian Regions:
 Mildly disturbed Periods:27-29 Sep.
 Best Quiet Periods: 12-26 Sep , 3-8 Oct.

Southern Australian Regions:
 Disturbed Periods: 27-29 Sep.
 Best Quiet Periods: 12-26 Sep,  3-8 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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