[Ips-wgr] SWS Weekly Geo. Report (06 April 17) issued 0221 UT on 06 Apr 2017 [SEC=UNCLASSIFIED]
rwc at ips.gov.au
Thu Apr 6 12:21:01 EST 2017
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 06 APRIL 2017, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (28 MARCH - 05 APRIL)
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
28 Mar 4335 3222 17
29 Mar 2233 2322 10
30 Mar 2322 3333 12
31 Mar 3344 3323 17
01 Apr 2233 3422 12
02 Apr 1121 2210 4
03 Apr 1111 2101 3
04 Apr 2334 3113 12
05 Apr 2222 1322 7
*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 28 Mar, 31 Mar. Quiet to unsettled on other days.
2. FORECAST (06 APRIL - 06 MAY)
17-19 Apr, 23-28 Apr, 1-3 May.
Best Quiet Periods:
9-16 Apr, 20-22 Apr, 29-30 Apr.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Disturbed Periods: None.
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 8-16 Apr, 30-Apr to 2-May.
Southern Australian Regions:
Disturbed Periods: 17-20 Apr, 23-29 Apr.
Best Quiet Periods: 9-15 Apr, 1-May
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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