[Ips-wgr] SWS Weekly Geo. Report (17 August 17) issued 0217 UT on 17 Aug 2017 [SEC=UNCLASSIFIED]

rwc rwc at ips.gov.au
Thu Aug 17 12:17:27 EST 2017


SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 17 AUGUST 2017, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (08 AUGUST - 16 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               
 08 Aug   1110 1111    2  
 09 Aug   1111 1001    2  
 10 Aug   1111 1101    2  
 11 Aug   1201 1231    5  
 12 Aug   3321 2022    7  
 13 Aug   2221 1111    4  
 14 Aug   1111 1111    3  
 15 Aug   1110 0000    1  
 16 Aug   2111 1211    4  

*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 for the previous week. 
Active conditions likely early in the week 17Aug-25Aug
due to coronal hole effects. 

2. FORECAST (17 AUGUST - 16 SEPTEMBER)
Disturbed Periods: 17-22 Aug,  1 Sep.

Best Quiet Periods:   23-29 Aug,  3-6 Sep,  9-12 Sep.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
 Disturbed Periods: None
 Best Quiet Periods: 17Aug-16Sep.

Central Australian Regions:
 Disturbed Periods: Mildly Disturbed 17Aug-22Aug
 Best Quiet Periods: 23-30 Aug,  4-12 Sep.

Southern Australian Regions:
 Disturbed Periods: 17Aug-22Aug, 31Aug-03Sep
 Best Quiet Periods: 23-30 Aug,  5-7 Sep,  9-12 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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