[Ips-wgr] ASWFC Weekly Geo. Report (23 November 23) issued 0103 UT on 23 Nov 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 23 NOVEMBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (14 NOVEMBER - 22 NOVEMBER)
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               
 14 Nov   2211 2322    7  
 15 Nov   2122 3332    9  
 16 Nov   2221 3211    6  
 17 Nov   1000 0211    2  
 18 Nov   1210 0011    2  
 19 Nov   1111 1011    2  
 20 Nov   1122 2212    5  
 21 Nov   2333 3323   13  
 22 Nov   3434 4432   20  

*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.


G1 on 22 Nov.   G0 on other days.

2. FORECAST (23 NOVEMBER - 23 DECEMBER)
Disturbed Periods: 
02-03 Dec, 18-19 Dec.

Best Quiet Periods: 
 28-30 Nov,  7-8 Dec,  11 Dec,  13-17 Dec.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 28-30 Nov, 05-17 Dec.

Central Australian Regions:
 Disturbed Periods: None.
 Mildly Disturbed Periods: 23-Nov, 02-03 Dec.
 Best Quiet Periods: 25 Nov to 04 Dec,  6-17 Dec.

Southern Australian Regions:
 Disturbed Periods: 23-Nov, 4-6 Dec.
 Best Quiet Periods: 28 Nov to 30 Dec,  7-9 Dec,  13-17 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