[Ips-wgr] ASWFC Weekly Geo. Report (19 January 23) issued 0110 UT on 19 Jan 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 19 JANUARY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (10 JANUARY - 18 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               
 10 Jan   2111 2222    5  
 11 Jan   3322 1223    9  
 12 Jan   2222 1223    7  
 13 Jan   2223 2234   11  
 14 Jan   2321 1122    6  
 15 Jan   3334 4334   19  In the BOM magnetometer data for 15 
                          Jan, a weak (12nT) impulse was observed 
                          at 1429UT.
 16 Jan   3233 3311   11  
 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  

*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.

2. FORECAST (19 JANUARY - 18 FEBRUARY)
Disturbed Periods: 
 19 Jan,  22-23 Jan, 26 Jan, 31 Jan, 15 Feb, 18 Feb.

Best Quiet Periods: 
 29-30 Jan,  1-8 Feb,  13 Feb.

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

Central Australian Regions:
 Mildly Disturbed Periods: 19-24 Jan, 26-28 Jan, 10 Feb.
 Best Quiet Periods: 30 Jan to 08 Feb, 12-13 Feb.

Southern Australian Regions:
 Disturbed Periods: 19-24 Jan, 26-28 Jan, 10 Feb.
 Best Quiet Periods: 30 Jan to 08 Feb, 12-13 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