[Ips-wgr] ASWFC Weekly Geo. Report (26 January 23) issued 0054 UT on 26 Jan 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 26 JANUARY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (17 JANUARY - 25 JANUARY)
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               
 17 Jan   1221 1004    6  In the BOM magnetometer data for 17 
                          Jan, a weak (14nT) impulse was observed 
                          at 2159UT.
 18 Jan   3332 3322   12  
 19 Jan   1122 2001    3  
 20 Jan   1201 1212    4  
 21 Jan   3332 2222   10  
 22 Jan   2122 1222    6  
 23 Jan   1322 3222    8  In the BOM magnetometer data for 23 
                          Jan, a weak (13nT) impulse was observed 
                          at 0340UT.
 24 Jan   2112 2111    4  
 25 Jan   1112 2322    6  

*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 throughout the week of 18-25 Jan

2. FORECAST (26 JANUARY - 25 FEBRUARY)
Disturbed Periods: 
 31 Jan,  7-12 Feb,  14 Feb,  17 Feb,  19 Feb.

Best Quiet Periods: 
 27-29 Jan,  2-5 Feb,  21-25 Feb.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 26-29 Jan, 2-25 Feb.

Central Australian Regions: 
 Disturbed Periods: None.
 Mildly Disturbed Periods: 30-31 Jan, 10 Feb, 19 Feb
 Best Quiet Periods: 26-29 Jan, 2-9 Feb, 11-18 Feb, 20-25 Feb. 

Southern Australian Regions:
 Disturbed Periods: 30-31 Jan, 10 Feb, 19 Feb
 Best Quiet Periods: 26-29 Jan, 2-8 Feb, 12-17 Feb, 21-25 Feb. 


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