[Ips-wgr] SWS Weekly Geo. Report (14 April 22) issued 0201 UT on 14 Apr 2022 [SEC=OFFICIAL]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 14 APRIL 2022, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
ASWAS SCALE DESCRIPTION: https://sws.bom.gov.au

1. SUMMARY (05 APRIL - 13 APRIL)
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               
 05 Apr   1122 1211    4  
 06 Apr   2211 0212    4  
 07 Apr   2224 3322   11  
 08 Apr   2221 1112    5  
 09 Apr   2333 3421   13  
 10 Apr   2533 2222   14  In the SWS magnetometer data for 10 
                          Apr, a weak (13nT) impulse was observed 
                          at 0300UT.
 11 Apr   3223 1121    7  
 12 Apr   2102 3332    8  In the SWS magnetometer data for 12 
                          Apr, a weak (8nT) impulse was observed 
                          at 1124UT.
 13 Apr   2221 1002    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.

Geomagnetic conditions were generally quiet to unsettled during the
week. G1 geomagnetic conditions were briefly observed in the Australian
region on UT day 10 Apr due to coronal hole effects and possible
weak CME impacts. No significant geomagnetic activity followed the
sudden impulse observed on 12 Apr.


2. FORECAST (14 APRIL - 14 MAY)
Disturbed Periods: 
14-16 Apr, 28-29 Apr, 7 May

Best Quiet Periods: 
18-26 Apr, 30 Apr, 1-2 May, 11-14 May

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
No disturbed intervals.

Central Australian Regions:
Mildly disturbed 20 Apr, 23-24 Apr, 27 Apr, 29 Apr.

Southern Australian Regions:
 Disturbed Periods: 20 Apr, 23-24 Apr, 27 Apr, 29 Apr.
 Best Quiet Periods: 1-6 May, 9-14 May.


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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