[Ips-wgr] ASWFC Weekly Geo. Report (22 September 22) issued 0202 UT on 22 Sep 2022 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 22 SEPTEMBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (13 SEPTEMBER - 21 SEPTEMBER)
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               
 13 Sep   0210 1101    2  
 14 Sep   1121 1223    6  
 15 Sep   2110 1211    3  
 16 Sep   1221 0101    3  
 17 Sep   1111 1102    3  
 18 Sep   2222 3123    8  
 19 Sep   2112 2322    7  
 20 Sep   1211 1121    4  
 21 Sep   1112 1002    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 were observed this week.

2. FORECAST (22 SEPTEMBER - 22 OCTOBER)
Disturbed Periods: 
 22-28 Sep, 30 Sep to 7 Oct, 20-22 Oct.

Best Quiet Periods: 
 8 Oct,  10 Oct, 16-18 Oct.

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

Central Australian Regions:
 Mildly Disturbed Periods: 26-28 Sep, 30 Sep to 5 Oct.
 Best Quiet Periods: 22-24 Sep, 7-22 Oct.

Southern Australian Regions:
 Disturbed Periods: 26-28 Sep, 30 Sep to 5 Oct.
 Best Quiet Periods: 22-24 Sep,  7-22 Oct.


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