[Ips-wgr] ASWFC Weekly Geo. Report (02 January 25) issued 0043 UT on 02 Jan 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 02 JANUARY 2025
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (24 DECEMBER - 01 JANUARY)
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               
 24 Dec   2321 2223    8  
 25 Dec   2322 1011    5  
 26 Dec   1200 0001    1  
 27 Dec   1111 1111    3  
 28 Dec   1122 1122    5  
 29 Dec   1122 1113    5  
 30 Dec   2331 2122    8  In the BOM magnetometer data for 30 
                          Dec, a weak (9nT) impulse was observed 
                          at 0410UT.
 31 Dec   1222 1533   13  In the BOM magnetometer data for 31 
                          Dec, a weak (15nT) impulse was observed 
                          at 1621UT.
 01 Jan   3555 6763   59  In the BOM magnetometer data for 01 
                          Jan, a weak (18nT) impulse was observed 
                          at 0308UT.

*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.


Planetary G4 geomagnetic storm on 01-Jan. Australian region reached G3 on this
day. 

2. FORECAST (02 JANUARY - 01 FEBRUARY)
Disturbed Periods: 
2 Jan, 4-6 Jan.

Best Quiet Periods: 
 6-9 Jan,  21-26 Jan,  28 Jan.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 9-27 Jan.

Central Australian Regions:
 Disturbed Periods: None.
 Mildly Disturbed periods: 4-6 Jan.
 Best Quiet Periods: 9-27 Jan.

Southern Australian Regions:
 Disturbed Periods: None.
 Mildly disturbed periods: 4-6 Jan.
 Best Quiet Periods:  9-27 Jan.


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