[Ips-wgr] SWS Weekly Geo. Report (08 February 18) issued 0303 UT on 08 Feb 2018 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 08 FEBRUARY 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (30 JANUARY - 07 FEBRUARY)
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               
 30 Jan   1222 1101    4  
 31 Jan   1022 3122    6  
 01 Feb   2011 0022    3  
 02 Feb   1101 0111    2  
 03 Feb   1112 0111    3  
 04 Feb   1100 1132    4  
 05 Feb   2222 3201    6  
 06 Feb   1113 2011    4  
 07 Feb   1102 2001    2  

*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 (08 FEBRUARY - 10 MARCH)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 17-18 Feb,  21 Feb.

Best Quiet Periods: 
 8-16 Feb,  19-20 Feb,  22 Feb to 6 Mar.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
Quiet Condition at all times

Central Australian Regions:
 Moderately Disturbed: 18 Feb
 Best Quiet Periods: 8-17 Feb, 19 Feb - 10 Mar

Southern Australian Regions:
 Disturbed Periods: 18 Feb
 Best Quiet Periods: 8-17 Feb, 19 Feb - 10 Mar


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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