[Ips-wgr] SWS Weekly Geo. Report (24 May 18) issued 0239 UT on 24 May 2018 [SEC=UNCLASSIFIED]

rwc rwc at ips.gov.au
Thu May 24 12:39:33 EST 2018


SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 24 MAY 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (15 MAY - 23 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               
 15 May   0010 0101    1  
 16 May   0000 1021    1  
 17 May   1122 3221    6  
 18 May   1101 2211    3  
 19 May   0000 0100    0  
 20 May   0110 1000    1  
 21 May   0000 0001    0  
 22 May   0021 2211    3  
 23 May   1232 2101    5  

*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 (24 MAY - 23 JUNE)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 24 May,  1-9 Jun,  13 Jun, 19-20 Jun

Best Quiet Periods: 
 25-31 May,  10-12 Jun,  14-18 Jun.

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

Central Australian Regions:
 Moderately Disturbed Periods: 2-6 Jun, 20-21 Jun
 Best Quiet Periods: 24 May - 1 Jun,  7-19 Jun

Southern Australian Regions:
 Disturbed Periods: 2-6 Jun, 20-21 Jun
 Best Quiet Periods: 24 May - 1 Jun,  7-19 Jun


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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