[Ips-wgr] SWS Weekly Geo. Report (16 August 18) issued 0218 UT on 16 Aug 2018 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 16 AUGUST 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (07 AUGUST - 15 AUGUST)
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 Aug   2322 3221    8  
 08 Aug   1212 1101    3  
 09 Aug   1111 1010    2  
 10 Aug   1110 0101    1  
 11 Aug   1232 2323    9  
 12 Aug   1112 2001    3  
 13 Aug   1111 1001    2  
 14 Aug   1111 1001    2  
 15 Aug   1113 4223   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.


Quiet to unsettled conditions.

2. FORECAST (16 AUGUST - 15 SEPTEMBER)
Disturbed Periods: 
16 Aug.

Best Quiet Periods: 
 22 Aug to 2 Sep,  4-6 Sep,  8-11 Sep.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
Mildly disturbed Periods: None.
Best Quiet Periods: 22 Aug to 11 Sep.

Central Australian Regions:
 Mildly disturbed Periods: 16 Aug, 20-21 Aug.
 Best Quiet Periods: 22 Aug to 11 Sep.

Southern Australian Regions:
 Disturbed Periods: 16 Aug, 20-21 Aug.
 Best Quiet Periods: 22 Aug to 11 Sep.


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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