High Energy Physics Seminars

A fast and efficient technique to simulate the effects of geomagnetic storms recorded by GRAPES-3 experiment in real time

by Mr. Meeran Zuberi (DHEP, TIFR)

Tuesday, August 7, 2018 from to (Asia/Kolkata)
at TIFR, Mumbai ( AG-69 )
Following the GRAPES-3 discovery of a transient weakening of Earth's magnetic shield through obeservation of a cosmic ray burst on 22 June 2015, I have been involved in an effort to search for more such events in 20 years of archived data.  An important step in anablyzing the data is to simulate the cosmic ray trajectories in the geomagnetic field influenced by the interplanetary magnetic field during a geomagnetic storm.  The simulation of 22 June 2015 burst required over two months of running time on the 1280 core GRAPES-3 computer cluster in Ooty.  In this talk I would summarize the development of a fast, efficient technique which as allowed us to simulate the 22 June 2015 event in fraction of a second with same resolution as the earlier computational-intensive method.  This has laid the foundation for quick analysis of a large number of such events in archival data, and of future events virutally in real-time.