[Ips-wgr] SWS Weekly Geo. Report (05 August 21) issued 0146 UT on 05 Aug 2021
rwc at ips.gov.au
Thu Aug 5 11:46:14 EST 2021
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 05 AUGUST 2021, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (27 JULY - 04 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
Date K-INDICES A
27 Jul 0112 1012 3
28 Jul 3332 1321 10
29 Jul 2222 2112 6
30 Jul 0112 2111 3
31 Jul 1222 2211 5
01 Aug 1000 0111 1
02 Aug 0111 2453 13
03 Aug 3222 2101 6
04 Aug 1111 0100 1
*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 (05 AUGUST - 04 SEPTEMBER)
No strong recurrent patterns, however mild activity may be experienced on:
6-7 Aug, 10-11 Aug, 15-16 Aug, 18 Aug, 24-26 Aug, 29-30 Aug.
Best Quiet Periods:
5 Aug, 8-9 Aug, 12-14 Aug, 17 Aug, 19-23 Aug, 27-28 Aug, 31 Aug.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 5-31 Aug.
Southern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 5-26 Aug, 28 Aug, 30-31 Aug.
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
Geomagnetic activity can frequently be determined by short timescale
solar events that cannot be forecast a week in advance, particularly
at solar maximum.
Space Weather Services email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386 WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010 fax: +61 2 9213 8060
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