[Ips-wgr] SWS Weekly Geo. Report (16 May 19) issued 0321 UT on 16 May 2019

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 16 MAY 2019, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (07 MAY - 15 MAY)
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               
 07 May   1210 1221    4  
 08 May   0100 0001    0  
 09 May   1122 1112    4  
 10 May   1111 1222    4  
 11 May   3244 4222   15  
 12 May   0000 0010    0  
 13 May   0012 1211    3  
 14 May   2453 2321   16  
 15 May   0210 1221    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.


Active on 14 May.   Quiet to unsettled on other days.

2. FORECAST (16 MAY - 15 JUNE)
Disturbed Periods: 
16-17 May.

Best Quiet Periods: 
 19-27 May,  30 May,  1-5 Jun,  8-11 Jun.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 16 May to 15 Jun.

Central Australian Regions:
 Mildly Disturbed Periods: 17 May - 19 May
 Best Quiet Periods: 20 May to 9 Jun, 11-15 June

Southern Australian Regions:
 Disturbed Periods: 17 May - 19 May
 Best Quiet Periods: 20 May to 9 Jun, 11-15 June


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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