[Ips-wgr] ASWFC Weekly Geo. Report (15 June 23) issued 0040 UT on 15 Jun 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 15 JUNE 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (06 JUNE - 14 JUNE)
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               
 06 Jun   2211 1000    2  
 07 Jun   1100 0002    1  
 08 Jun   1211 1000    2  
 09 Jun   1010 0011    1  
 10 Jun   1011 0011    1  
 11 Jun   2220 1111    4  
 12 Jun   1110 1111    2  
 13 Jun   1121 0101    2  
 14 Jun   1101 0001    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.

G0 conditions were observed all week.

2. FORECAST (15 JUNE - 15 JULY)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced 
during the interval 16-21 Jun.

Best Quiet Periods: 
 22-23 Jun,  25-26 Jun,  29-30 Jun,  2-7 Jul,  9-11 Jul.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 23 Jun to 10 Jul.

Central Australian Regions:
 Mildly Disturbed Periods: 16, 18-21 Jun.
 Best Quiet Periods: 23 Jun to 10 Jul.

Southern Australian Regions:
 Disturbed Periods: 16, 18-21 Jun.
 Best Quiet Periods: 23-28 Jun,  07-11 Jul.


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