geophysics@pknu

Recently (October 2020), the Korea Seismological Research University Consortium (currently, Pukyong National University, Seoul National University, Korea University) initiated a joint study with the World Heritage Headquarters in Jeju Special Self-Governing Province to investigate the magma structure, which is the root of Jeju volcanic bodies. Five broadband seismographs have been installed on the summit of Hallasan Mountain and at a height of about 1,500 m around it, and geophones are being installed at about 70 locations with auxiliary observation networks. It is expected to be able to visualize the three-dimensional structure of the lower part of the volcanic body in Jeju Island by observing micro-earthquakes occurring in the lower part of Jeju Island and analyzing seismic waves from earthquakes occurring in a distance.

The Nature journal published a paper entitled "Ten computer codes that transformed science" by Jeffrey M. Perkel (Nature, vol.589, 21 January 2021, pp.345-348). The author polled dozens of researchers over the past year to develop a diverse line-up of ten software tools that have had a big impact on the world of science. Major researches in geophysics@pknu are dependent on at least three items of those software tools: (1) Language pioneer - the Fortran compiler (1957), (2) Signal processor - fast Fourier transform (1965), and (3) Data explorer - IPython Notebook (2011).

Also the Nature journal published a paper entitled "Five reasons why researchers should learn to love the command line" by Jeffrey M. Perkel (Nature, vol.590, 04 February 2021, pp.173-174). Most of researches in geophysics@pknu deal with massive datasets such as seismic records. Thus our students are required to be familiar with the command line tools such as Bash scripting which is essential in Linux and MacOSX computing environments at geophysics@pknu.

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