[Ips-wgr] ASWFC Weekly Geo. Report (20 June 24) issued 0049 UT on 20 Jun 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 20 JUNE 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (11 JUNE - 19 JUNE)
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               
 11 Jun   3221 1000    4  
 12 Jun   1110 1010    1  
 13 Jun   0100 1100    1  
 14 Jun   0121 0021    2  
 15 Jun   1123 4212    9  In the BOM magnetometer data for 15 
                          Jun, a weak (13nT) impulse was observed 
                          at 1155UT.
 16 Jun   2122 3132    8  
 17 Jun   2322 1322    8  
 18 Jun   2222 2221    6  
 19 Jun   2321 2211    6  

*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. Geomagnetic activity
was mildly elevated on 15-Jun due to a CME arrival. 

2. FORECAST (20 JUNE - 20 JULY)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 25-26 Jun,  4-5 Jul,  7-8 Jul,  12-16 Jul.

Best Quiet Periods: 
 24 Jun,  28-29 Jun,  1-3 Jul,  6 Jul,  9-11 Jul.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 20 Jun to 20 Jul.

Central Australian Regions:
 Mildly Disturbed Periods: 15-16 Jul.
 Best Quiet Periods: 20 Jun to 13 Jul, 18-20 Jul.

Southern Australian Regions:
 Disturbed Periods: 15-16 Jul.
 Best Quiet Periods: 20 Jun to 13 Jul, 18-20 Jul.


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.

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au