[Ips-wgr] ASWFC Weekly Geo. Report (23 May 24) issued 0228 UT on 23 May 2024 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 23 MAY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (14 MAY - 22 MAY)
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               
 14 May   1222 1111    4  
 15 May   1122 2022    5  
 16 May   2354 3201   15  
 17 May   2312 3444   16  In the BOM magnetometer data for 17 
                          May, a weak (10nT) impulse was observed 
                          at 1329UT.
 18 May   3322 3111    8  
 19 May   1212 2122    5  
 20 May   1330 2001    5  
 21 May   2112 2211    5  
 22 May   1100 0011    1  

*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.

G1 geomagnetic conditions were observed in the Australian region on
16-May this week. G0 geomagnetic conditions were observed on all
other days. 

2. FORECAST (23 MAY - 22 JUNE)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 12-15 Jun, 24-25 Jun.

Best Quiet Periods: 
 26 May,  31 May,  3-8 Jun,  10 Jun,  17-18 Jun.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 23-May to 5 Jun,  13-22 Jun.

Central Australian Regions:
 Mildly Disturbed Periods: 3 Jun.
 Best Quiet Periods: 23-May to 1 Jun,  13-22 Jun.

Southern Australian Regions:
 Disturbed Periods: 3 Jun.
 Best Quiet Periods: 23-May to 1 Jun, 13-22 Jun.


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