[Ips-wgr] SWS Weekly Geo. Report (22 August 19) issued 0154 UT on 22 Aug 2019

rwc rwc at ips.gov.au
Thu Aug 22 11:54:54 EST 2019


SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 22 AUGUST 2019, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (13 AUGUST - 21 AUGUST)
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               
 13 Aug   2212 2211    5  
 14 Aug   1112 1001    2  
 15 Aug   1110 1001    1  
 16 Aug   1122 2200    4  
 17 Aug   1111 0100    1  
 18 Aug   1221 0100    2  
 19 Aug   1111 0000    1  
 20 Aug   1210 1101    2  
 21 Aug   1110 1100    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 (22 AUGUST - 21 SEPTEMBER)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 1-2 Sep.

Best Quiet Periods: 
 22-25 Aug,  28-30 Aug,  4-5 Sep,  7-8 Sep,  10-17 Sep.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 22-27 Aug, 07-17 Sep.

Central Australian Regions:
 Mildly disturbed Periods: 01-03 Sept
 Best Quiet Periods: 22-27 Aug, 29-30 Aug, 07-17 Sep.

Southern Australian Regions:
 Disturbed Periods: 01-03 Sep.
 Best Quiet Periods: 22-27 Aug, 29-30 Aug, 7-17 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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