[Ips-wgr] ASWFC Weekly Geo. Report (18 August 22) issued 0058 UT on 18 Aug 2022 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 18 AUGUST 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (09 AUGUST - 17 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               
 09 Aug   2334 3332   14  
 10 Aug   2323 3322   11  
 11 Aug   2224 3442   15  
 12 Aug   2123 3101    6  
 13 Aug   1212 2322    7  
 14 Aug   2211 1000    2  
 15 Aug   1110 2301    4  
 16 Aug   1111 1001    2  
 17 Aug   2322 2444   15  In the SWS magnetometer data for 17 
                          Aug, a weak (9nT) impulse was observed 
                          at 0259UT.

*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 (18 AUGUST - 17 SEPTEMBER)
Disturbed Periods: 
18-20 Aug,  04-07 Sep, 13-15 Sep.

Best Quiet Periods: 
 21-Aug to 02-Sep, 09-11 Sep, 17-Sep. 

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

Central Australian Regions:
 Mildly disturbed Periods: 07-Sep, 13-Sep.
 Best Quiet Periods: 21-Aug to 02-Sep, 09-11 Sep, 17-Sep.

Southern Australian Regions:
 Disturbed Periods: 07-Sep, 13-Sep.
 Best Quiet Periods: 21-Aug to 02-Sep, 09-11 Sep, 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.

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