[Ips-wgr] SWS Weekly Geo. Report (22 March 18) issued 0134 UT on 22 Mar 2018 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Thu Mar 22 12:34:39 EST 2018
SUBJ: SWS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 22 MARCH 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (13 MARCH - 21 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
13 Mar 0111 2001 2
14 Mar 1120 1433 9
15 Mar 3213 1332 10
16 Mar 2333 3433 15 In the SWS magnetometer data for 16
Mar, a weak (9nT) impulse was observed
at 1644UT.
17 Mar 3222 2122 7
18 Mar 2112 3334 11
19 Mar 3321 2222 8
20 Mar 1100 2011 2
21 Mar 1100 0022 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.
Quiet to unsettled conditions.
2. FORECAST (22 MARCH - 21 APRIL)
Disturbed Periods:
24-25 Mar, 14-15, 20-21 Apr
Best Quiet Periods:
26 Mar to 13 Apr, 16-19 Apr.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 26 Mar to 13 Apr, 16-19 Apr.
Central Australian Regions:
Disturbed Periods: None.
Mildly Disturbed Periods: None.24-25 Mar, 14-15, 20-21 Apr
Best Quiet Periods: 26 Mar to 13 Apr, 16-19 Apr.
Southern Australian Regions:
Disturbed Periods: None.
Mildly Disturbed Periods: None.24-25 Mar, 14-15, 20-21 Apr
Best Quiet Periods: 26 Mar to 13 Apr, 16-19 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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