[Ips-wgr] SWS Weekly Geo. Report (26 November 20) issued 0152 UT on 26 Nov 2020

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 26 NOVEMBER 2020, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (17 NOVEMBER - 25 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               
 17 Nov   1001 1001    1  
 18 Nov   1110 0011    1  
 19 Nov   1111 0012    2  
 20 Nov   2212 1121    5  
 21 Nov   1100 3223    6  
 22 Nov   2334 4332   16  
 23 Nov   1122 1111    4  
 24 Nov   1000 1102    2  
 25 Nov   1112 1112    4  

*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.


Active on 22 Nov.   Quiet to unsettled on other days.

2. FORECAST (26 NOVEMBER - 26 DECEMBER)
Disturbed Periods: 
17-19 Dec.

Best Quiet Periods: 
 29 Nov to 15 Dec, 21-23 Dec.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
  Disturbed Periods: None
  Best Quiet Periods:29 Nov-15 Dec.

Central Australian Regions:
 Mildly disturbed Periods: 19-20 Dec
 Best Quiet Periods: 29 Nov to 15 Dec.

Southern Australian Regions:
 Disturbed Periods: 19-20 Dec
 Best Quiet Periods: 29 Nov to 15 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.

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386                         WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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