[Ips-wgr] IPS Weekly Geo. Report (19 February 15) issued 0204 UT on 19 Feb 2015
rwc at ips.gov.au
Thu Feb 19 13:04:16 EST 2015
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 19 FEBRUARY 2015, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (10 FEBRUARY - 18 FEBRUARY)
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
10 Feb 1211 1122 4
11 Feb 1311 2001 4
12 Feb 2111 2111 4
13 Feb 0011 1101 1
14 Feb 1101 0002 2
15 Feb 2322 2111 6
16 Feb 1211 2123 6
17 Feb 3333 2323 13
18 Feb 4322 3222 11
*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 (19 FEBRUARY - 21 MARCH)
20-21 Feb: Slightly disturbed
28 Feb - 2 Mar: Mildly disturbed
16-18 Mar: Mildly disturbed.
Best Quiet Periods: 8-15 Mar.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 19-27 Feb, 2-17 Mar.
Central Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 2-17 Mar.
Southern Australian Regions:
Disturbed Periods: 27 Feb to 1 Mar.
Best Quiet Periods: 3-17 Mar.
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.
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