[Ips-wgr] SWS Weekly Geo. Report (15 March 18) issued 0212 UT on 15 Mar 2018 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 15 MARCH 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (06 MARCH - 14 MARCH)
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               
 06 Mar   2111 2301    5  
 07 Mar   1110 0021    2  
 08 Mar   1122 0010    2  
 09 Mar   2212 2233    8  In the SWS magnetometer data for 09 
                          Mar, a weak (10nT) impulse was observed 
                          at 1809UT.
 10 Mar   2222 3222    8  
 11 Mar   3210 0111    4  
 12 Mar   1000 1100    1  
 13 Mar   0111 2001    2  
 14 Mar   1120 1433    9  

*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 (15 MARCH - 14 APRIL)
Disturbed Periods:  15-18 Mar.

Best Quiet Periods: 19-20 Mar,  22 Mar,  24-25 Mar,  27 Mar to 4 Apr,  7-10 Apr.

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

Central Australian Regions: Mildly Disturbed 16-18 Mar

Southern Australian Regions:
 Disturbed Periods: 16-18 Mar
 Best Quiet Periods:  20-21 Mar,  23 Mar to 10 Apr.


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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