[Ips-wgr] ASWFC Weekly Geo. Report (18 April 24) issued 0207 UT on 18 Apr 2024 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 18 APRIL 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (09 APRIL - 17 APRIL)
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               
 09 Apr   1122 2112    5  
 10 Apr   2221 2211    5  
 11 Apr   2210 0001    2  
 12 Apr   2220 0001    3  
 13 Apr   1210 0001    2  
 14 Apr   2121 1002    3  
 15 Apr   2211 0222    5  
 16 Apr   3233 3343   15  
 17 Apr   2112 0212    4  

*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 over the period 09-17 Apr.

2. FORECAST (18 APRIL - 18 MAY)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 19-21 Apr, 1-4 May, 16-18 May.

Best Quiet Periods: 
 23-29 Apr, 6-14 May.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 23-Apr to 6-May.

Central Australian Regions:
 Disturbed Periods: 19-21 Apr and 16-18 May.
 Best Quiet Periods: 23-29 Apr, 6-14 May.

Southern Australian Regions:
 Disturbed Periods: 19-21 Apr, 1-4 May and 16-18 May.
 Best Quiet Periods: 23-29 Apr, 6-14 May.

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