[Ips-wgr] ASWFC Weekly Geo. Report (02 February 23) issued 0127 UT on 02 Feb 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 02 FEBRUARY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (24 JANUARY - 01 FEBRUARY)
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               
 24 Jan   2112 2111    4  
 25 Jan   1112 2322    6  
 26 Jan   2232 2222    8  
 27 Jan   2122 2213    7  
 28 Jan   2221 2322    7  
 29 Jan   2122 1201    4  
 30 Jan   2111 1122    4  
 31 Jan   1221 1321    6  
 01 Feb   1010 1233    5  In the BOM magnetometer data for 01 
                          Feb, a weak (8nT) impulse was observed 
                          at 1637UT.

*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 (02 FEBRUARY - 04 MARCH)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 9-12 Feb,  14 Feb, 17-18 Feb.

Best Quiet Periods: 
 2-8 Feb,  15-16 Feb,  19-21 Feb,  23-26 Feb,  28 Feb-04 Mar.

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

Central Australian Regions:
 Mildly Disturbed Periods: 10 Feb, 19 Feb, 23-24 Feb.
 Best Quiet Periods: 2-8 Feb,  12-17 Feb,  21 Feb,  26 Feb-04 Mar.

Southern Australian Regions:
 Disturbed Periods: 10 Feb, 19 Feb, 23-24 Feb.
 Best Quiet Periods: 2-8 Feb,  12-17 Feb,  21 Feb,  26 Feb-04 Mar.

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