[Ips-wgr] SWS Weekly Geo. Report (18 July 19) issued 0224 UT on 18 Jul 2019
rwc
rwc at ips.gov.au
Thu Jul 18 12:24:52 EST 2019
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 18 JULY 2019, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (09 JULY - 17 JULY)
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
09 Jul 2223 2232 9
10 Jul 1344 3211 12
11 Jul 1232 1101 5
12 Jul 1123 2010 4
13 Jul 1112 1321 5
14 Jul 1110 1111 2
15 Jul 1213 1110 4
16 Jul 1111 2011 3
17 Jul 1220 2001 3
*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 (18 JULY - 17 AUGUST)
Disturbed Periods:
No strong recurrent patterns, however mild activity may be experienced on:
5-6 Aug.
Best Quiet Periods:
18 Jul-4 Aug, 7-13 Aug.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 18 Jul to 13 Aug.
Central Australian Regions:
Disturbed Periods: Mildly disturbed 6-7 Aug.
Best Quiet Periods: 18 Jul to 4 Aug, 7-13 Aug.
Southern Australian Regions:
Disturbed Periods: 6-7 Aug.
Best Quiet Periods: 18 Jul to 4 Aug, 7-13 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
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.
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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