Weekly Report

(last updated 21 Nov 2024 00:52 UT)

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT ISSUED ON 21 NOVEMBER 2024 FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx 1. SUMMARY (12 NOVEMBER - 20 NOVEMBER) 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 12 Nov 1110 2211 3 13 Nov 2102 2121 4 14 Nov 1211 2222 5 15 Nov 2222 3222 8 16 Nov 2111 1001 2 17 Nov 1212 2022 5 18 Nov 1310 1112 4 19 Nov 1112 3322 7 20 Nov 1323 2212 8 *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 (21 NOVEMBER - 21 DECEMBER) Disturbed Periods: 11-12 Dec. Best Quiet Periods: 27-28 Nov, 4 Dec, 9-10 Dec, 13-15 Dec, 18 Dec. 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Northern Australian Regions: NA Central Australian Regions: Mildly Disturbed Periods: 24 Nov, 26-27 Nov, 21 Dec. Best Quiet Periods: 21-22 Nov, 29 Nov to 19 Dec. Southern Australian Regions: Disturbed Periods: 24 Nov, 26-27 Nov, 21 Dec. Best Quiet Periods: 21-22 Nov, 29 Nov to 19 Dec. 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.