[Ips-wgr] SWS Weekly Geo. Report (23 November 17) issued 0147 UT on 23 Nov 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 23 NOVEMBER 2017, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

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   2222 2222    7  
 15 Nov   1133 3433   13  
 16 Nov   3333 1112    9  
 17 Nov   1213 2001    4  
 18 Nov   2122 1111    4  
 19 Nov   1221 0111    3  
 20 Nov   1110 1223    5  
 21 Nov   3333 3333   15  
 22 Nov   2222 3222    8  

*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 over the last 7 days.
Mostly Quiet conditions expected for the next week, no
recurrent coronal activity. 

2. FORECAST (23 NOVEMBER - 23 DECEMBER)
Disturbed Periods: 4-8 Dec,  18 Dec.

Best Quiet Periods:  24-28 Nov,  30 Nov to 3 Dec,  9-10 Dec,
  14-17 Dec.

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

Central Australian Regions: 
  Mildly Disturbed: 4-8 Dec,  18 Dec.

Southern Australian Regions:
 Disturbed Periods:  4-8 Dec,  18 Dec.
 Best Quiet Periods: 23 Nov to 3 Dec,  9-12 Dec,  14-17 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.

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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