[Ips-wgr] ASWFC Weekly Geo. Report (08 December 22) issued 0111 UT on 08 Dec 2022 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 08 DECEMBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (29 NOVEMBER - 07 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               
 29 Nov   3233 3332   13  
 30 Nov   3334 4243   18  
 01 Dec   2434 3333   17  
 02 Dec   2333 2322   11  
 03 Dec   2223 2212    7  
 04 Dec   2212 3332    9  
 05 Dec   1122 3111    5  
 06 Dec   1101 2011    2  
 07 Dec   1002 4333   10  

*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 observed during the week, with mildly elevated 
geomagnetic activity during periods 30-Nov to 01-Dec and 07-Dec 
due to coronal hole wind streams. 

2. FORECAST (08 DECEMBER - 07 JANUARY)
Disturbed Periods: 
8-9 Dec,  25-28 Dec.

Best Quiet Periods: 
 12-21 Dec,  1-2 Jan, 8-11 Jan.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None

Central Australian Regions:
 Mildly  Disturbed Periods: 8-10 and 25-31 Dec

Southern Australian Regions:
 Disturbed Periods: 8-10 and 25-31 Dec

Best Quiet Periods:13-22 Dec, 1-3 Jan, 9-11 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