[Ips-wgr] ASWFC Weekly Geo. Report (20 October 22) issued 0155 UT on 20 Oct 2022 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 20 OCTOBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (11 OCTOBER - 19 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               
 11 Oct   1110 1122    3  
 12 Oct   1111 2211    4  
 13 Oct   1110 1012    2  
 14 Oct   1234 3213   11  
 15 Oct   3222 1332    9  
 16 Oct   2234 4323   15  
 17 Oct   2110 2302    5  
 18 Oct   1111 1112    3  
 19 Oct   2111 1001    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 observed this week. A mild increase in
geomagnetic activity was observed on 16-Oct due to coronal hole
high speed wind stream effects.

2. FORECAST (20 OCTOBER - 19 NOVEMBER)
Disturbed Periods: 
 20-21 Oct, 24-27 Oct, 29 Oct to 6 Nov, 10-12 Nov, 16-17 Nov.

Best Quiet Periods: 
 22-23 Oct, 28 Oct,  7-8 Nov,  13-15 Nov, 18-19 Nov.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: 
 No disturbed periods expected.

Central Australian Regions:
 Mildly Disturbed Periods: 25-27 Oct, 31 Oct to 5 Nov, 11-14 Nov.
 Best Quiet Periods: 21-22 Oct, 29 Oct, 7-9 Nov, 16-19 Nov.

Southern Australian Regions:
 Disturbed Periods: 25-27 Oct, 31 Oct to 5 Nov, 11-14 Nov.
 Best Quiet Periods: 21-22 Oct, 29 Oct, 7-9 Nov, 16-19 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