[Ips-wgr] IPS Weekly Geo. Report (19 March 15) issued 0312 UT on 19 Mar 2015

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 19 MARCH 2015, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (10 MARCH - 18 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               
 10 Mar   2211 0002    3  
 11 Mar   2321 3331   10  In the IPS magnetometer data for 11 
                          Mar, a weak (11nT) impulse was observed 
                          at 0513UT.
 12 Mar   2223 2211    7  
 13 Mar   2111 3111    5  
 14 Mar   1211 1002    3  
 15 Mar   1221 1222    5  
 16 Mar   3333 3321   12  
 17 Mar   2546 6665   56  In the IPS magnetometer data for 17 
                          Mar, a weak (43nT) impulse was observed 
                          at 0445UT.
 18 Mar   3345 5533   28  

*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.


Major storm on 17 Mar. Minor storm on 18 Mar.  Quiet to unsettled on other days.

2. FORECAST (19 MARCH - 18 APRIL)
Disturbed Periods: 
 19 Mar,  23-24 Mar,  28-29 Mar,  3 Apr,  7 Apr,  12-15 Apr.

Best Quiet Periods: 
 21-22 Mar,  26 Mar,  1 Apr,  4-5 Apr,  9-10 Apr,  17-18 Apr.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 19-26 Mar,  31 Mar to 1 Apr,  6-11 Apr,  17-18 Apr.

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 19-26 Mar,  31 Mar to 1 Apr,  6-11 Apr,  17-18 Apr.

Southern Australian Regions:
 Disturbed Periods: 28-29 Mar,  7-8 Apr,  13-15 Apr.
 Best Quiet Periods: 19-26 Mar,  31 Mar to 1 Apr,  6-11 Apr,  17-18 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.

IPS Radio and Space Services        email: asfc at ips.gov.au
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