[Ips-wgr] SWS Weekly Geo. Report (30 March 17) issued 0138 UT on 30 Mar 2017 [SEC=UNCLASSIFIED]

rwc rwc at ips.gov.au
Thu Mar 30 12:38:53 EST 2017


SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 30 MARCH 2017, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (21 MARCH - 29 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               
 21 Mar   1332 3443   15  
 22 Mar   3334 3332   15  
 23 Mar   3222 2211    7  
 24 Mar   2221 2200    4  
 25 Mar   0101 1001    1  
 26 Mar   2101 0001    2  
 27 Mar   2345 4453   26  
 28 Mar   4335 3222   17  
 29 Mar   2233 2322   10  

*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 on 27-28 Mar.   Quiet to unsettled on other days.

2. FORECAST (30 MARCH - 29 APRIL)
Disturbed Periods: 
30-31 Mar, 17-18 Apr,  23-25 Apr.

Best Quiet Periods: 
7-16 Apr, 21-22 Apr.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Mildly disturbed Periods: 25 Apr.
 Best Quiet Periods: 6-12 Apr, 15-16 Apr, 21-22 Apr.

Central Australian Regions:
 Disturbed Periods: 25 Apr
 Best Quiet Periods:6-12 Apr, 15-16 Apr, 21-22 Apr.


Southern Australian Regions:
 Disturbed Periods: 30-31 Mar,  17-18 Apr,  23-25 Apr.
 Best Quiet Periods: 6-12 Apr, 15-16 Apr, 21-22 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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