AIMBAT

AIMBAT (Automated and Interactive Measurement of Body wave Arrival Times) is an open-source software package for efficiently measuring teleseismic body wave arrival times for large seismic arrays [1]. It is based on a widely used method called MCCC (Multi-Channel Cross-Correlation) [2]. The package is automated in the sense of initially aligning seismograms for MCCC, which is achieved by an ICCS (Iterative Cross Correlation and Stack) algorithm. Meanwhile, a GUI (graphical user interface) is built to perform seismogram quality control interactively. Therefore, user processing time is reduced while valuable input from a user's expertise is retained. As a byproduct, SAC [3] plotting and phase picking functionalities are replicated and enhanced.

Modules and scripts included in the AIMBAT package were developed using Python and its open-source modules on the Mac OS X platform since 2009. The original MCCC [2] code was transcribed into Python. The GUI of AIMBAT was inspired and initiated at the 2009 EarthScope USArray Data Processing and Analysis Short Course. AIMBAT runs on Mac OS X, Linux/Unix and Windows thanks to the platform-independent feature of Python.

For more information visit the project website or the pysmo repositories.

Authors' Contacts

• Xiaoting Lou Email: xlou at u.northwestern.edu

• Suzan van der Lee Email: suzan at northwestern.edu

• Simon Lloyd Email: simon at slloyd.net

Contributors

• Lay Kuan Loh

References

[1] Xiaoting Lou, Suzan van der Lee, and Simon Lloyd (2013), AIMBAT: A Python/Matplotlib Tool for Measuring Teleseismic Arrival Times. Seismol. Res. Lett., 84(1), 85-93, doi:10.1785/0220120033.

[2] VanDecar, J. C., and R. S. Crosson (1990), Determination of teleseismic relative phase arrival times using multi-channel cross-correlation and least squares. Bulletin of the Seismological Society of America, 80(1), 150–169.

[3] Goldstein, P., D. Dodge, M. Firpo, and L. Minner (2003), SAC2000: Signal processing and analysis tools for seismologists and engineers, International Geophysics, 81, 1613–1614.