[Ips-wgr] ASWFC Weekly Geo. Report (12 October 23) issued 0057 UT on 12 Oct 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 12 OCTOBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (03 OCTOBER - 11 OCTOBER)
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               
 03 Oct   1211 2211    4  
 04 Oct   2222 1212    6  
 05 Oct   2313 2103    8  
 06 Oct   2322 1213    8  
 07 Oct   2210 0121    3  
 08 Oct   2221 0123    6  
 09 Oct   2222 1222    6  
 10 Oct   1210 0001    2  
 11 Oct   1110 1201    2  

*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. 

2. FORECAST (12 OCTOBER - 11 NOVEMBER)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 15 Oct,  27 Oct,  7 Nov.

Best Quiet Periods: 
 3 Nov,  6-7 Nov.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.

Central Australian Regions:
 Mildly Disturbed Periods: 16-17 Oct
 Best Quiet Periods: 12-14 Oct, 19 Oct to 11 Nov.

Southern Australian Regions:
 Disturbed Periods: 16-17 Oct
 Best Quiet Periods: 12-14 Oct, 19 Oct to 11 Nov.

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