[Ips-wgr] SWS Weekly Geo. Report (07 April 22) issued 0110 UT on 07 Apr 2022 [SEC=OFFICIAL]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 07 APRIL 2022, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
ASWAS DESCRIPTION SCALE: https://www.sws.bom.gov.au

1. SUMMARY (29 MARCH - 06 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               
 29 Mar   2121 1222    5  
 30 Mar   1101 0112    2  
 31 Mar   5434 4423   24  In the SWS magnetometer data for 31 
                          Mar, a weak (28nT) impulse was observed 
                          at 0225UT.
 01 Apr   3324 4222   14  In the SWS magnetometer data for 01 
                          Apr, a weak (15nT) impulse was observed 
                          at 1250UT.
 02 Apr   3332 2342   13  
 03 Apr   2110 1222    4  
 04 Apr   3222 2111    6  
 05 Apr   1122 1211    4  
 06 Apr   2211 0212    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.

Conditions on most days was less than G1. One period of G1
conditions early 31 Mar. 

2. FORECAST (07 APRIL - 07 MAY)
Disturbed Periods: 
7 Apr, 10 Apr, 23 Apr, 28 Apr, 29 Apr.

Best Quiet Periods: 
12-22 Apr, 25-27 Apr, 30 Apr, 3-6 May.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 7 Apr - 7 May.

Central Australian Regions:
 Mildly Disturbed Periods: 7 Apr, 20 Apr, 23-34 Apr, 29 Apr.
 Best Quiet Periods: 8-19 Apr, 21-22 Apr, 25-28 Apr, 30 Apr - 6 May.

Southern Australian Regions:
 Disturbed Periods: 7 Apr, 20 Apr, 23-34 Apr, 29 Apr.
 Best Quiet Periods: 8-19 Apr, 21-22 Apr, 25-28 Apr, 30 Apr - 6 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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