[Ips-wgr] SWS Weekly Geo. Report (21 July 22) issued 0224 UT on 21 Jul 2022 [SEC=OFFICIAL]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 21 JULY 2022, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (12 JULY - 20 JULY)
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               
 12 Jul   2233 4431   14  In the SWS magnetometer data for 12 
                          Jul, a weak (12nT) impulse was observed 
                          at 1737UT.
 13 Jul   1211 1210    3  
 14 Jul   1110 0101    1  
 15 Jul   1100 1122    3  
 16 Jul   1222 0000    3  
 17 Jul   0111 0000    1  
 18 Jul   0123 2022    5  
 19 Jul   3434 4333   19  
 20 Jul   1201 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.

G0 geomagnetic conditions were observed this week. Increased geomagnetic
conditions were observed in the Australian region on 12-Jul and 19-Jul. 
Geomagnetic activity did not reach ASWAS G1 conditions. Planetary Kp-index
briefly reached 5 (ASWAS G1) on 12-Jul and 19-Jul. 

2. FORECAST (21 JULY - 20 AUGUST)
Disturbed Periods: 
 22-25 Jul, 29-31 Jul, 3-4 Aug, 7-8 Aug, 11-16 Aug, 19-20 Aug.

Best Quiet Periods: 
 27-Jul.

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

Central Australian Regions:
 Mildly Disturbed Periods: 22-25 Jul, 9-11 Aug, 19-20 Aug.
 Best Quiet Periods: 27-Jul to 7-Aug, 13-17 Aug.

Southern Australian Regions:
 Disturbed Periods: 22-25 Jul, 9-11 Aug, 19-20 Aug.
 Best Quiet Periods: 27-Jul to 7-Aug, 13-17 Aug.


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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