[Ips-wgr] IPS Weekly Geo. Report (27 August 15) issued 0232 UT on 27 Aug 2015

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 27 AUGUST 2015, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (18 AUGUST - 26 AUGUST)
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               
 18 Aug   2321 1201    5  
 19 Aug   3233 4321   13  
 20 Aug   2222 4222    9  
 21 Aug   1120 2111    3  
 22 Aug   1112 3212    6  
 23 Aug   1244 3222   12  
 24 Aug   2122 2111    5  
 25 Aug   1222 1221    5  
 26 Aug   2335 4333   19  

*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.


Active to Minor Storm periods expected on 27Aug-28Aug due to coronal hole
effects. 
Active periods possible for 29Aug with Quiet to Unsettled on other days.

2. FORECAST (27 AUGUST - 26 SEPTEMBER)
Disturbed Periods: 
27-28 Aug,  3 Sep,  13 Sep,  15 Sep,  19 Sep.

Best Quiet Periods: 
 30 Aug to 1 Sep,  10-12 Sep,  17 Sep.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: Quiet.

Central Australian Regions:
 Mildly Disturbed Periods: 27 Aug - 29 Aug
 Best Quiet Periods: 30 Aug to 2 Sep,  6-10 Sep,  17-22 Sep.

Southern Australian Regions:
 Disturbed Periods: 27 Aug - 29 Aug
 Best Quiet Periods: 30 Aug to 2 Sep,  7-10 Sep,  17-22 Sep.


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 ips.gov.au
Bureau of Meteorology
PO Box 1386                         WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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