[Ips-wgr] SWS Weekly Geo. Report (11 August 22) issued 0121 UT on 11 Aug 2022 [SEC=OFFICIAL]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 11 AUGUST 2022, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (02 AUGUST - 10 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               
 02 Aug   2222 1122    6  
 03 Aug   2221 1121    5  
 04 Aug   1110 2221    4  
 05 Aug   2210 1101    3  
 06 Aug   1000 0000    0  
 07 Aug   1223 3334   13  
 08 Aug   3333 3333   15  
 09 Aug   2334 3332   14  
 10 Aug   2323 3322   11  

*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.

G0 geomagnetic conditions were observed this week. Increased geomagnetic
activity was observed over 07-10 Aug due to coronal hole high speed 
wind stream effects.

2. FORECAST (11 AUGUST - 10 SEPTEMBER)
Disturbed Periods: 
 17-19 Aug,  3-6 Sep.

Best Quiet Periods: 
 13 Aug, 21 Aug, 25-26 Aug, 1 Sep, 9 Sep.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
 No disturbed periods expected.

Central Australian Regions: 
 Mildly Disturbed Periods: 18-20 Aug, 30 Aug, 4-7 Sep.
 Best Quiet Periods: 13-16 Aug, 22-28 Aug, 1-2 Sep, 9-10 Sep.

Southern Australian Regions:
 Disturbed Periods: 18-20 Aug, 30 Aug, 4-7 Sep.
 Best Quiet Periods: 13-16 Aug, 22-28 Aug, 1-2 Sep, 9-10 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.

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au