[Ips-wgr] IPS Weekly Geo. Report (18 September 14) issued 0230 UT on 18 Sep 2014
rwc
rwc at ips.gov.au
Thu Sep 18 12:30:47 EST 2014
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 18 SEPTEMBER 2014, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (09 SEPTEMBER - 17 SEPTEMBER)
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
09 Sep 2211 1122 5
10 Sep 2111 0113 4
11 Sep 3322 2013 8
12 Sep 4322 2535 21 In the IPS magnetometer data for 12
Sep, a weak (39nT) impulse was observed
at 1554UT.
13 Sep 3241 2222 10
14 Sep 1110 0001 1
15 Sep 1111 0001 1
16 Sep 2322 1122 7
17 Sep 1111 0223 5
*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 minor storm with isolated periods of major storm on 12 September.
Quiet to active on 13 September. Quiet to unsettled on other days.
2. FORECAST (18 SEPTEMBER - 18 OCTOBER)
Disturbed Periods:
No strong recurrent patterns, however mild activity may be experienced on:
23-30 Sep, 2-4 Oct, 7-10 Oct, 14 Oct.
Best Quiet Periods:
18-22 Sep, 1 Oct, 5-6 Oct, 11-13 Oct.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: 10 Oct.
Best Quiet Periods: 18 Sep to 9 Oct, 11-14 Oct.
Central Australian Regions:
Disturbed Periods: 10 Oct.
Best Quiet Periods: 18 Sep to 9 Oct, 11-14 Oct.
Southern Australian Regions:
Disturbed Periods: 10 Oct.
Best Quiet Periods: 18 Sep to 9 Oct, 11-14 Oct.
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.
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