[Ips-wgr] ASWFC Weekly Geo. Report (15 December 22) issued 0136 UT on 15 Dec 2022 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 15 DECEMBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (06 DECEMBER - 14 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               
 06 Dec   1101 2011    2  
 07 Dec   1002 4333   10  
 08 Dec   2222 1223    7  
 09 Dec   2223 1222    7  
 10 Dec   3212 1222    7  
 11 Dec   2221 2212    6  
 12 Dec   2211 0212    4  
 13 Dec   2110 1101    2  
 14 Dec   1110 1212    3  

*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.


Quiet to unsettled conditions.

2. FORECAST (15 DECEMBER - 14 JANUARY)
Disturbed Periods: 
22-23 Dec,  27-28 Dec.

Best Quiet Periods: 
 15-16 Dec, 6-13 Jan.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA

Central Australian Regions: 
 Disturbed periods: None.
 Mildly disturbed periods: 27-28 Dec.
 Best quiet periods: 15-16 Dec, 6-13 Jan.

Southern Australian Regions:
 Disturbed Periods: 27-28 Dec.
 Best Quiet Periods: 15-16 Dec, 06-13 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