[Ips-wgr] SWS Weekly Geo. Report (05 April 18) issued 0159 UT on 05 Apr 2018 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Thu Apr 5 11:59:41 EST 2018
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 05 APRIL 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (27 MARCH - 04 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
Australian Region*
Date K-INDICES A
27 Mar 2223 3101 7
28 Mar 1010 0000 0
29 Mar 0011 1111 2
30 Mar 2211 2111 4
31 Mar 2111 1201 3
01 Apr 2211 2102 4
02 Apr 2101 1211 3
03 Apr 1220 0001 2
04 Apr 1101 1211 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 (05 APRIL - 05 MAY)
Disturbed Periods:
No strong recurrent patterns, however mild activity may be experienced on:
11-15 Apr, 19-23 Apr.
Best Quiet Periods:
8-10 Apr, 17-18 Apr, 24 Apr to 1 May.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 6-10 Apr, 17-18 Apr, 25 Apr to 5 May.
Central Australian Regions:
Mildly Disturbed Periods: 14-15 Apr, 23-24 Apr.
Best Quiet Periods: 6-10 Apr, 17-18 Apr, 25 Apr to 5 May.
Southern Australian Regions:
Disturbed Periods: 14-15 Apr, 23-24 Apr.
Best Quiet Periods: 6-10 Apr, 17-18 Apr, 25 Apr to 5 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
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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