[Ips-wgr] SWS Weekly Geo. Report (21 June 18) issued 0147 UT on 21 Jun 2018 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Thu Jun 21 11:47:31 EST 2018
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 21 JUNE 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (12 JUNE - 20 JUNE)
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
12 Jun 1110 0000 1
13 Jun 0010 0001 0
14 Jun 1121 1011 3
15 Jun 1111 0000 1
16 Jun 1010 0000 0
17 Jun 1110 0111 2
18 Jun 3234 3211 11
19 Jun 1122 2011 4
20 Jun 1122 1000 2
*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 conditions expected for the forecast week, with
Active to Minor Storm periods around 28Jun due to recurrent
coronal hole effects.
2. FORECAST (21 JUNE - 21 JULY)
Disturbed Periods: 27-30 Jun.
Best Quiet Periods: 21-26 Jun, 01-14Jul and 16-17Jul.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 21Jun to 17Jul.
Central Australian Regions:
Mildly Disturbed Periods: 28Jun - 01Jul.
Best Quiet Periods: 21Jun to 27Jun, 02Jul-21Jul.
Southern Australian Regions:
Disturbed Periods: 28Jun - 01Jul
Best Quiet Periods: 21Jun -27Jun, 02Jul-21Jul.
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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