Weekly Report

(last updated 15 Aug 2019 03:17 UT)

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT ISSUED ON 15 AUGUST 2019, BY Space Weather Services, FROM THE AUSTRALIAN SPACE FORECAST CENTRE 1. SUMMARY (06 AUGUST - 14 AUGUST) 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 06 Aug 2223 4212 10 07 Aug 2111 1111 3 08 Aug 1222 4211 8 09 Aug 0112 2212 4 10 Aug 2112 1011 3 11 Aug 1112 3101 4 12 Aug 1111 2011 3 13 Aug 2212 2211 5 14 Aug 1112 1001 2 *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 (15 AUGUST - 14 SEPTEMBER) Disturbed Periods: No strong recurrent patterns, however mild activity may be experienced on: 18 Aug, 27 Aug, 1-2 Sep, 6 Sep, 9 Sep. Best Quiet Periods: 15-17 Aug, 19-26 Aug, 28-31 Aug, 3-5 Sep, 7-8 Sep, 10 Sep. 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Northern Australian Regions: Disturbed Periods: None. Best Quiet Periods: 15 Aug to 14 Sep. Central Australian Regions: Moderately Disturbed Periods: 28 Aug, 01-06 Sep Best Quiet Periods: 16 Aug-27 Aug, 29 Aug- 31 Aug, 07 Sep -14 Sep Southern Australian Regions: Disturbed Periods: 28 Aug, 01-06 Sep Best Quiet Periods: 16 Aug-27 Aug, 29 Aug- 31 Aug, 07 Sep -14 Sep 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.