[Ips-wgr] SWS Weekly Geo. Report (03 May 18) issued 0210 UT on 03 May 2018 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 03 MAY 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (24 APRIL - 02 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               
 24 Apr   0010 1111    1  
 25 Apr   1110 0001    1  
 26 Apr   1111 1001    2  
 27 Apr   2101 1212    4  
 28 Apr   2100 1001    2  
 29 Apr   1111 1101    2  
 30 Apr   2210 1111    3  
 01 May   1100 0001    1  
 02 May   1110 0000    1  

*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 observed for the previous week.
Possible Active periods 06-08May due to a recurrent coronal 
hole high speed solar wind stream.

2. FORECAST (03 MAY - 02 JUNE)
Disturbed Periods: No strong recurrent patterns, however mild 
activity may be experienced on: 06-10May, 18May and 29 May.

Best Quiet Periods: 03-05 May,  11-17 May,  19-28 May.

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

Central Australian Regions: Mildly Disturbed 06-09May

Southern Australian Regions:
 Possible Disturbed Periods: 06-09May.
 Best Quiet Periods: 10-16May and 20-27May.


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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