[Ips-wgr] ASWFC Weekly Geo. Report (31 August 23) issued 0218 UT on 31 Aug 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 31 AUGUST 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (22 AUGUST - 30 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               
 22 Aug   2221 2001    4  
 23 Aug   1100 0002    1  
 24 Aug   1110 1322    5  
 25 Aug   1110 0101    1  
 26 Aug   1221 1112    4  
 27 Aug   2211 1221    5  
 28 Aug   1221 1111    4  
 29 Aug   1102 2102    3  
 30 Aug   1111 2011    3  

*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.

2. FORECAST (31 AUGUST - 30 SEPTEMBER)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 31 Aug,  2-3 Sep.

Best Quiet Periods: 
 5 Sep,  9-11 Sep,  13 Sep,  19 Sep,  21-22 Sep,  25-30 Sep.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
 Disturbed periods: mildly disturbed 2-3 Sep.
 Best Quiet Periods: 04-12 Sep, 19-30 Sep.

Central Australian Regions: 
 Disturbed Periods: None.
 Mildly Disturbed Periods: 2-3 Sep.
 Best Quiet Periods: 05-12 Sep, 19-30 Sep.

Southern Australian Regions:
 Disturbed Periods: 2-3 Sep.
 Best Quiet Periods: 05-12 Sep, 19-30 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