[Ips-wgr] ASWFC Weekly Geo. Report (25 August 22) issued 0048 UT on 25 Aug 2022 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 25 AUGUST 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (16 AUGUST - 24 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               
 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.
 18 Aug   2231 4433   14  
 19 Aug   3322 2333   12  In the SWS magnetometer data for 19 
                          Aug, a weak (10nT) impulse was observed 
                          at 1731UT.
 20 Aug   3231 0033    8  
 21 Aug   2223 2422   10  
 22 Aug   3311 0011    5  
 23 Aug   1010 0002    1  
 24 Aug   1110 0001    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 (25 AUGUST - 24 SEPTEMBER)
Disturbed Periods: 
28-31 Aug, 04-07 Sep, 14-17 Sep.

Best Quiet Periods: 
 24-26 Aug, 01-02 Sep, 09-11 Sep,  19-23 Sep.

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

Central Australian Regions: 
 Disturbed Periods: None.
 Mildly Disturbed Periods: 07-Sep, 13-Sep.
 Best Quiet Periods: 24-26 Aug, 01-02 Sep, 09-11 Sep, 19-23 Sep.

Southern Australian Regions:
 Disturbed Periods: 07-Sep, 13-Sep.
 Best Quiet Periods: 24-26 Aug, 01-02 Sep, 09-11 Sep, 19-23 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