[Ips-wgr] SWS Weekly Geo. Report (20 October 16) issued 0256 UT on 20 Oct 2016 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 20 OCTOBER 2016, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (11 OCTOBER - 19 OCTOBER)
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               
 11 Oct   1111 0001    1  
 12 Oct   1101 0114    5  
 13 Oct   3234 5442   21  
 14 Oct   2232 2211    7  
 15 Oct   2222 2323    9  
 16 Oct   2133 3333   12  
 17 Oct   2335 2432   17  
 18 Oct   2222 2112    6  
 19 Oct   2122 1211    5  

*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 periods on 12 October and minor storms periods on 13 October were
observed due to a possible CME and effect of a recurrent coronal hole.
Geomagnetic 
activity levels again rose to minor storm levels on 17 October, followed by some
active periods on 18 and 19 October due to the effect of another recurrent 
coronal hole. Geomagnetic activity stayed mostly at quiet and unsettled levels
on the remaining days of this period. 

2. FORECAST (20 OCTOBER - 19 NOVEMBER)
Disturbed Periods: 
23-29 Oct,  13 Nov.

Best Quiet Periods: 
 21 Oct,  2-5 Nov,  7-8 Nov,  15 Nov.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: 13 Nov.
 Best Quiet Periods: 21-23 Oct,  1-10 Nov, 15-16 Nov.

Central Australian Regions:
 Disturbed Periods: Mildly disturbed 24-31 Oct, 11-12 Nov and 14 Nov. Disturbed
on 13 Nov.
 Best Quiet Periods: 21-23 Oct,  1-10 Nov, 15-16 Nov. 

Southern Australian Regions:
 Disturbed Periods: 24-31 Oct,  11-14 Nov.
 Best Quiet Periods: 21-23 Oct,  1-10 Nov, 15-16 Nov.


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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