[Ips-wgr] SWS Weekly Geo. Report (01 March 18) issued 0306 UT on 01 Mar 2018 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 01 MARCH 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (20 FEBRUARY - 28 FEBRUARY)
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               
 20 Feb   2100 2101    2  
 21 Feb   0022 0111    2  
 22 Feb   1112 3332    8  
 23 Feb   2334 1222   11  
 24 Feb   2222 3001    5  
 25 Feb   0010 0221    2  
 26 Feb   2122 2202    5  
 27 Feb   3322 5211   13  
 28 Feb   1112 2111    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.

2. FORECAST (01 MARCH - 31 MARCH)
Disturbed Periods: 
 26-27 Mar
No strong recurrent patterns, however mild activity may be experienced on:
 2-3 Mar,  14 Mar,  16-18 Mar,  21-23 Mar, 29-30 Mar. 

Best Quiet Periods: 
 1 Mar,  4-13 Mar,  19-20 Mar,  24-25 Mar, 31 Mar.

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

Central Australian Regions:
 Disturbed Periods: None.
 Mildly Disturbed Periods: 2-3 Mar, 16-18 Mar, 22-23 Mar, 26-27 Mar, 29-30 Mar.
 Best Quiet Periods: 1 Mar,  4-15 Mar,  20-21 Mar,  24-25 Mar, 31 Mar.

Southern Australian Regions:
 Disturbed Periods: 2-3 Mar, 16-18 Mar, 22-23 Mar, 26-27 Mar, 29-30 Mar.
 Best Quiet Periods: 1 Mar,  4-15 Mar,  20-21 Mar,  24-25 Mar, 31 Mar.


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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