[Ips-wgr] SWS Weekly Geo. Report (11 January 18) issued 0238 UT on 11 Jan 2018 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 11 JANUARY 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (02 JANUARY - 10 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               
 02 Jan   1111 2211    4  
 03 Jan   1121 1101    3  
 04 Jan   1120 1011    2  
 05 Jan   1111 1111    3  
 06 Jan   2010 0001    1  
 07 Jan   1110 1111    2  
 08 Jan   1142 3323   11  In the SWS magnetometer data for 08 
                          Jan, a weak (26nT) impulse was observed 
                          at 0648UT and a weak (11nT) impulse 
                          was observed at 1251UT.
 09 Jan   2211 3212    6  
 10 Jan   1121 1101    3  

*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.

2. FORECAST (11 JANUARY - 10 FEBRUARY)
Disturbed Periods: 
 13-14 Jan, 9-10 Feb

Best Quiet Periods: 
 11-12 Jan,  15-19 Jan,  23-27 Jan,  29 Jan to 2 Feb,  6-7 Feb.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
 Disturbed Periods: None
 Best Quiet Periods: 11-12 Jan,  16 Jan to 10 Feb

Central Australian Regions: 
 Mildly Disturbed Periods: 13-15 Jan, 20-21 Jan, 4-5 Feb, 9-10 Feb
 Best Quiet Periods: 11-12 Jan,  16-19 Jan, 22 Jan - 3 Feb.

Southern Australian Regions:
 Disturbed Periods: 13-15 Jan, 20-21 Jan, 4-5 Feb, 9-10 Feb
 Best Quiet Periods: 11-12 Jan,  16-19 Jan, 22 Jan - 3 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 

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