Last updated 14 Aug 2008 02:09 UT SUBJ: IPS WEEKLY GEOPHYSICAL REPORT ISSUED ON 14 AUGUST 2008, BY IPS RADIO AND SPACE SERVICES, FROM THE AUSTRALIAN SPACE FORECAST CENTRE 1. SUMMARY (05 AUGUST - 13 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 05 Aug 1111 2011 3 06 Aug 1212 1221 5 07 Aug 1110 1111 2 08 Aug 1100 0102 2 09 Aug 3332 2334 14 10 Aug 3332 2322 11 11 Aug 2222 2211 6 12 Aug 2222 2211 6 13 Aug 1211 2111 4 *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 Space Environment Research Center, Japan. Quiet to unsettled conditions. 2. FORECAST (14 AUGUST - 13 SEPTEMBER) Disturbed Periods: No strong recurrent patterns, however mild activity may be experienced on: 18 Aug to 20 Aug, 5 Sep to 6 Sep Best Quiet Periods: 14 Aug to 17 Aug, 21 Aug to 4 Sep, 7 Sep to 13 Sep. 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Southern Australian Regions: Disturbed Periods: None. Best Quiet Periods: 14 Aug to 16 Aug, 20 Aug to 2 Sep, 7 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.