[Ips-wgr] SWS Weekly Geo. Report (25 January 18) issued 0206 UT on 25 Jan 2018 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 25 JANUARY 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (16 JANUARY - 24 JANUARY)
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               
 16 Jan   2122 1011    4  
 17 Jan   1111 1001    2  
 18 Jan   1000 0111    1  
 19 Jan   2222 1122    6  
 20 Jan   2232 1212    7  
 21 Jan   1123 3222    8  
 22 Jan   2322 1222    7  
 23 Jan   2111 2201    4  
 24 Jan   0111 3323    7  

*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 observed over the last 7 days.
Quiet to Unsettled conditions expected for the next week with 
possible Active periods due to coronal hole effects from 28Jan.


2. FORECAST (25 JANUARY - 24 FEBRUARY)
Disturbed Periods: No strong recurrent patterns, however mild 
activity may be experienced on: 28 Jan,  4 Feb,  10 Feb,  17-18 Feb.

Best Quiet Periods: 
 30 Jan to 3 Feb,  5-9 Feb,  11-16 Feb,  19-20 Feb.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: Quiet conditions expected

Central Australian Regions: 
 Mildly Disturbed Periods: 28Jan-29Jan, 05Feb, 10Feb and 18Feb
 Quiet Periods: 30 Jan to 04 Feb,  11-15 Feb. 

Southern Australian Regions:
 Disturbed Periods:  28Jan-29Jan, 05Feb, 10Feb and 18Feb
 Best Quiet Periods: 30 Jan to 04 Feb,  11-15 Feb.


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 

IMPORTANT: This e-mail, including any attachments, may contain,
confidential or copyright information.  The views expressed in 
this message are those of the individual sender, unless 
specifically stated to be the views of SWS.  If you are not 
the intended recipient, please contact the sender immediately 
and delete all copies of this e-mail and attachments. 
To unsubscribe from an IPS mail list either send an email to 
"MAIL_LIST"-leave at ips.gov.au or go to
http://www.sws.bom.gov.au/mailman/listinfo/"MAIL_LIST".
Information about training can be obtained from
http://www.sws.bom.gov.au/mailman/listinfo/ips-training.
General information is available from
http://www.sws.bom.gov.au/mailman/listinfo/ips-info.