[Ips-wgr] ASWFC Weekly Geo. Report (06 July 23) issued 0215 UT on 06 Jul 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 06 JULY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (27 JUNE - 05 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               
 27 Jun   2222 2111    5  
 28 Jun   1212 1012    4  
 29 Jun   2434 2232   14  In the BOM magnetometer data for 29 
                          Jun, a weak (8nT) impulse was observed 
                          at 0735UT.
 30 Jun   2223 3101    7  
 01 Jul   2110 0000    1  
 02 Jul   1112 2101    3  
 03 Jul   1111 0001    1  
 04 Jul   1110 0001    1  
 05 Jul   1110 1112    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.

2. FORECAST (06 JULY - 05 AUGUST)
Disturbed Periods: 
 7 Jul, 13-18 Jul.

Best Quiet Periods: 
 6 Jul,  9-11 Jul,  28-Jul to 05-Aug.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.

Central Australian Regions:
 Mildly Disturbed Periods: 13-14 Jul, 22-23 Jul.
 Best Quiet Periods: 6-11 Jul,  16-20 Jul, 25-Jul to 5-Aug.

Southern Australian Regions:
 Disturbed Periods: 13-14 Jul, 22-23 Jul.
 Best Quiet Periods: 6-11 Jul,  16-20 Jul, 25-Jul to 5-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.

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