[Ips-wgr] SWS Weekly Geo. Report (03 May 18) issued 0210 UT on 03 May 2018 [SEC=UNCLASSIFIED]
rwc at ips.gov.au
Thu May 3 12:10:17 EST 2018
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 03 MAY 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (24 APRIL - 02 MAY)
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
24 Apr 0010 1111 1
25 Apr 1110 0001 1
26 Apr 1111 1001 2
27 Apr 2101 1212 4
28 Apr 2100 1001 2
29 Apr 1111 1101 2
30 Apr 2210 1111 3
01 May 1100 0001 1
02 May 1110 0000 1
*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 observed for the previous week.
Possible Active periods 06-08May due to a recurrent coronal
hole high speed solar wind stream.
2. FORECAST (03 MAY - 02 JUNE)
Disturbed Periods: No strong recurrent patterns, however mild
activity may be experienced on: 06-10May, 18May and 29 May.
Best Quiet Periods: 03-05 May, 11-17 May, 19-28 May.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: Quiet
Central Australian Regions: Mildly Disturbed 06-09May
Southern Australian Regions:
Possible Disturbed Periods: 06-09May.
Best Quiet Periods: 10-16May and 20-27May.
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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