[Ips-wgr] SWS Weekly Geo. Report (27 February 20) issued 0302 UT on 27 Feb 2020

rwc rwc at ips.gov.au
Thu Feb 27 14:02:41 EST 2020


SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 27 FEBRUARY 2020, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (18 FEBRUARY - 26 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               
 18 Feb   1222 3333   10  A weak (7nT) impulse was observed 
                          at 1347UT in the SWS magnetometer data for 18 
                          Feb.
 19 Feb   2324 2211    9  
 20 Feb   1203 2222    6  
 21 Feb   2233 2322   10  
 22 Feb   2112 3321    7  
 23 Feb   1010 1222    3  
 24 Feb   1100 1002    2  
 25 Feb   1000 1001    1  
 26 Feb   1110 1121    3  

*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 (27 FEBRUARY - 28 MARCH)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 28 Feb,  4-5 Mar,  16-17 Mar,  19-20 Mar.

Best Quiet Periods: 
 1-3 Mar,  6-14 Mar,  18 Mar,  21-23 Mar, 25-28 Mar.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
 Best Quiet Periods: 27 Feb-28 Mar.

Central Australian Regions: 
 Best Quiet Periods: 27 Feb-4 Mar, 07-28 Mar.
 Mildly Disturbed Periods: 5-6 Mar.

Southern Australian Regions: 
 Best Quiet Periods: 27 Feb-4 Mar, 7-28 Mar.
 Disturbed Periods: 5-6 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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