[Ips-wgr] SWS Weekly Geo. Report (23 March 17) issued 0234 UT on 23 Mar 2017 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Thu Mar 23 13:34:36 EST 2017
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 23 MARCH 2017, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (14 MARCH - 22 MARCH)
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
14 Mar 1100 2111 2
15 Mar 1112 2012 4
16 Mar 2100 1001 2
17 Mar 0111 0001 1
18 Mar 1000 0001 0
19 Mar 0101 0000 0
20 Mar 0000 0101 0
21 Mar 1332 3443 15
22 Mar 3334 3332 15
*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.
Mostly quiet to unsettled conditions in the Australian/NZ region. Active
conditions observed on 21 and 22 March in this region.
2. FORECAST (23 MARCH - 22 APRIL)
Disturbed Periods:
23-24 Mar, 28 Mar-31 Mar, 17-19 Apr.
Best Quiet Periods:
25-27 Mar, 7-16 Apr.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Mildly disturbed: 29 Mar.
Central Australian Regions:
Disturbed Periods: Mildly disturbed 23 Mar, 28 Mar, 30 Mar-5 Apr, 17-19 Apr.
Disturbed 29 Mar
Best Quiet Periods: 25-27 Mar, 6-16 Apr.
Southern Australian Regions:
Disturbed Periods: 23 Mar, 28 Mar-5 Apr, 17-19 Apr.
Best Quiet Periods: 25-27 Mar, 6-16 Apr.
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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