Weekly Report
(last updated 02 Feb 2023 01:27 UT)
SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT ISSUED ON 02 FEBRUARY 2023 FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx 1. SUMMARY (24 JANUARY - 01 FEBRUARY) 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 Jan 2112 2111 4 25 Jan 1112 2322 6 26 Jan 2232 2222 8 27 Jan 2122 2213 7 28 Jan 2221 2322 7 29 Jan 2122 1201 4 30 Jan 2111 1122 4 31 Jan 1221 1321 6 01 Feb 1010 1233 5 In the BOM magnetometer data for 01 Feb, a weak (8nT) impulse was observed at 1637UT. *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 (02 FEBRUARY - 04 MARCH) Disturbed Periods: No strong recurrent patterns, however mild activity may be experienced on: 9-12 Feb, 14 Feb, 17-18 Feb. Best Quiet Periods: 2-8 Feb, 15-16 Feb, 19-21 Feb, 23-26 Feb, 28 Feb-04 Mar. 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Northern Australian Regions: Disturbed Periods: None expected. Central Australian Regions: Mildly Disturbed Periods: 10 Feb, 19 Feb, 23-24 Feb. Best Quiet Periods: 2-8 Feb, 12-17 Feb, 21 Feb, 26 Feb-04 Mar. Southern Australian Regions: Disturbed Periods: 10 Feb, 19 Feb, 23-24 Feb. Best Quiet Periods: 2-8 Feb, 12-17 Feb, 21 Feb, 26 Feb-04 Mar. 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.
