[Ips-wgr] SWS Weekly Geo. Report (17 August 17) issued 0217 UT on 17 Aug 2017 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Thu Aug 17 12:17:27 EST 2017
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 17 AUGUST 2017, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (08 AUGUST - 16 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
08 Aug 1110 1111 2
09 Aug 1111 1001 2
10 Aug 1111 1101 2
11 Aug 1201 1231 5
12 Aug 3321 2022 7
13 Aug 2221 1111 4
14 Aug 1111 1111 3
15 Aug 1110 0000 1
16 Aug 2111 1211 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 International Center for Space Weather
Science and Education, Japan.
Quiet to Unsettled conditions for the previous week.
Active conditions likely early in the week 17Aug-25Aug
due to coronal hole effects.
2. FORECAST (17 AUGUST - 16 SEPTEMBER)
Disturbed Periods: 17-22 Aug, 1 Sep.
Best Quiet Periods: 23-29 Aug, 3-6 Sep, 9-12 Sep.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None
Best Quiet Periods: 17Aug-16Sep.
Central Australian Regions:
Disturbed Periods: Mildly Disturbed 17Aug-22Aug
Best Quiet Periods: 23-30 Aug, 4-12 Sep.
Southern Australian Regions:
Disturbed Periods: 17Aug-22Aug, 31Aug-03Sep
Best Quiet Periods: 23-30 Aug, 5-7 Sep, 9-12 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.
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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