[Ips-wgr] SWS Weekly Geo. Report (30 March 17) issued 0138 UT on 30 Mar 2017 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Thu Mar 30 12:38:53 EST 2017
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 30 MARCH 2017, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (21 MARCH - 29 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
21 Mar 1332 3443 15
22 Mar 3334 3332 15
23 Mar 3222 2211 7
24 Mar 2221 2200 4
25 Mar 0101 1001 1
26 Mar 2101 0001 2
27 Mar 2345 4453 26
28 Mar 4335 3222 17
29 Mar 2233 2322 10
*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.
Active on 27-28 Mar. Quiet to unsettled on other days.
2. FORECAST (30 MARCH - 29 APRIL)
Disturbed Periods:
30-31 Mar, 17-18 Apr, 23-25 Apr.
Best Quiet Periods:
7-16 Apr, 21-22 Apr.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Mildly disturbed Periods: 25 Apr.
Best Quiet Periods: 6-12 Apr, 15-16 Apr, 21-22 Apr.
Central Australian Regions:
Disturbed Periods: 25 Apr
Best Quiet Periods:6-12 Apr, 15-16 Apr, 21-22 Apr.
Southern Australian Regions:
Disturbed Periods: 30-31 Mar, 17-18 Apr, 23-25 Apr.
Best Quiet Periods: 6-12 Apr, 15-16 Apr, 21-22 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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