Weekly Report

(last updated 12 Dec 2024 00:38 UT)

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT ISSUED ON 12 DECEMBER 2024 FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx 1. SUMMARY (03 DECEMBER - 11 DECEMBER) 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 03 Dec 3322 2332 11 04 Dec 2112 3122 6 05 Dec 2221 0112 4 06 Dec 2210 1112 4 07 Dec 1222 2122 6 08 Dec 1212 2221 5 09 Dec 2223 2223 9 10 Dec 2222 1112 5 11 Dec 2121 2112 5 *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 for the entire period of 03-11 Dec. 2. FORECAST (12 DECEMBER - 11 JANUARY) Disturbed Periods: No strong recurrent patterns, however mild activity may be experienced on: 12-14 Dec, 16-22 Dec, 5-6 Jan, 8-11 Jan. Best Quiet Periods: 24-Dec to 3-Jan. 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Northern Australian Regions: NA Central Australian Regions: NA Southern Australian Regions: Disturbed Periods: 12-14 Dec, 16-22 Dec, 5-6 Jan, 8-11 Jan. Best Quiet Periods: 24-Dec to 3-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.