[Ips-wgr] ASWFC Weekly Geo. Report (13 July 23) issued 0151 UT on 13 Jul 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 13 JULY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (04 JULY - 12 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               
 04 Jul   1110 0001    1  
 05 Jul   1110 1112    3  
 06 Jul   2213 2212    7  
 07 Jul   2333 3233   13  
 08 Jul   2111 0000    2  
 09 Jul   0010 0111    1  
 10 Jul   2111 1101    3  
 11 Jul   1121 1111    3  
 12 Jul   1210 1111    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.


Quiet to unsettled conditions.

2. FORECAST (13 JULY - 12 AUGUST)
Disturbed Periods: 
 13-15 Jul, 9-10 Aug.

Best Quiet Periods: 
 17-31 Jul, 1-7 Aug.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA

Central Australian Regions: NA
 Mildly Disturbed Periods: 14-15 Jul, 9-10 Aug
 Best Quiet Periods: 17-31 Jul, 1-7 Aug.

Southern Australian Regions:
 Disturbed Periods: 14-15 Jul, 9-10 Aug
 Best Quiet Periods: 19-20 Jul, 30 Jul - 7 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