[Ips-wgr] ASWFC Weekly Geo. Report (07 December 23) issued 0131 UT on 07 Dec 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 07 DECEMBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (28 NOVEMBER - 06 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               
 28 Nov   2222 1222    6  
 29 Nov   1111 2011    3  
 30 Nov   2110 1011    2  
 01 Dec   4336 6553   41  In the BOM magnetometer data for 01 
                          Dec, a weak (17nT) impulse was observed 
                          at 0019UT, a weak (26nT) impulse was 
                          observed at 0925UT and a weak (9nT) 
                          impulse was observed at 0953UT.
 02 Dec   4211 1212    7  In the BOM magnetometer data for 02 
                          Dec, a weak (12nT) impulse was observed 
                          at 0019UT.
 03 Dec   3432 3422   15  In the BOM magnetometer data for 03 
                          Dec, a weak (10nT) impulse was observed 
                          at 0121UT and a weak (9nT) impulse 
                          was observed at 1304UT.
 04 Dec   1333 2222    9  
 05 Dec   3333 3323   14  
 06 Dec   2222 3212    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.


G2 geomagnetic conditions were observed in the Australian region on
1-Dec, G0 conditions were observed on all other days. On the planetary
level, G3 geomagnetic conditions were observed on 1-Dec and G1 
conditions were observed on 2-Dec. G0 were observed on all other days

2. FORECAST (07 DECEMBER - 06 JANUARY)
Disturbed Periods: 
7 Dec,  10-12 Dec, 18-20 Dec,  22-23 Dec and 31-Dec to 4-Jan

Best Quiet Periods: 
9 Dec, 14-16 Dec, 25-29 Dec and 6-Jan

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
 Disturbed Periods: NA
 Best Quiet Periods: 7-Dec to 6-Jan

Central Australian Regions: 
 Disturbed Periods: NA
 Best Quiet Periods: 9 Dec, 14-16 Dec, 25-29 Dec and 6-Jan

Southern Australian Regions:
 Disturbed Periods: 7-10 Dec, 19-20 Dec, 22-25 Dec, 28-29 Dec, 31-Dec to 6-Jan.
 Best Quiet Periods: 12-17 Dec and 27-Dec.


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