[Ips-wgr] ASWFC Weekly Geo. Report (14 December 23) issued 0039 UT on 14 Dec 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 14 DECEMBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (05 DECEMBER - 13 DECEMBER)
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               
 05 Dec   3333 3323   14  
 06 Dec   2222 3212    7  
 07 Dec   1111 1012    3  
 08 Dec   1111 1121    3  
 09 Dec   1110 0000    1  
 10 Dec   0210 0011    2  
 11 Dec   1110 1001    1  
 12 Dec   1111 2222    5  
 13 Dec   1212 1323    7  

*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 all week.

2. FORECAST (14 DECEMBER - 13 JANUARY)
Disturbed Periods: 
16 Dec,  19 Dec,  22 Dec.

Best Quiet Periods: 
 20-21 Dec,  23-28 Dec,  3-7 Jan,  10-13 Jan.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: No disturbed periods.

Central Australian Regions: No disturbed periods.

Southern Australian Regions:
 Disturbed Periods: 22 Dec, 31-Dec to 03 Jan
 Best Quiet Periods: 17-18 Dec, 20-21 Dec, 24-27 Dec, 29-30 Dec, 5-12 Jan.


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