[Ips-wgr] ASWFC Weekly Geo. Report (16 November 23) issued 0053 UT on 16 Nov 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 16 NOVEMBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (07 NOVEMBER - 15 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               
 07 Nov   4321 3233   13  
 08 Nov   2322 2232    9  
 09 Nov   3221 2232    8  
 10 Nov   2311 2112    6  
 11 Nov   1110 0011    1  
 12 Nov   1242 2213    9  In the BOM magnetometer data for 12 
                          Nov, a weak (22nT) impulse was observed 
                          at 0612UT.
 13 Nov   3213 3312   10  
 14 Nov   2211 2322    7  
 15 Nov   2122 3332    9  

*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. A CME arrival was observed on 
12-Nov but no significant geomagnetic activity followed the
sudden impulse.

2. FORECAST (16 NOVEMBER - 16 DECEMBER)
Disturbed Periods: 
No significantly disturbed days. Mild disturbances possible on 
17 Nov, 22 Nov,  25 Nov.

Best Quiet Periods: 
 18-21 Nov,  28-30 Nov,  7-8 Dec,  11-13 Dec.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 16 Nov to 16 Dec.

Central Australian Regions:
 Disturbed Periods: None, mild disturbances possible 05-Dec, 07-09 Dec.
 Best Quiet Periods: 16 Nov to 4 Dec,  10-16 Dec.

Southern Australian Regions:
 Disturbed Periods: 4-9 Dec.
 Best Quiet Periods: 16-23 Nov,  28 Nov to 2 Dec, 11-16 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