Aurora: An open-source Python implementation of the EMTF package for magnetotelluric data processing using MTH5 and mt-metadata

Karl Kappler; Jared R. Peacock; Gary D. Egbert; Andrew Frassetto; Lindsey Heagy; Anna Kelbert; Laura Keyson; Douglas W. Oldenburg; Timothy Ronan; Justin Sweet

doi:10.21105/joss.06832

Aurora: An open-source Python implementation of the EMTF package for magnetotelluric data processing using MTH5 and mt-metadata

Journal of Open Source Software

By: Karl Kappler, Jared R. Peacock, Gary D. Egbert, Andrew Frassetto, Lindsey Heagy, Anna Kelbert, Laura Keyson, Douglas W. Oldenburg, Timothy Ronan, and Justin Sweet

https://doi.org/10.21105/joss.06832

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Abstract

The Aurora software package robustly estimates single station and remote reference electromagnetic transfer functions (TFs) from magnetotelluric (MT) time series. Aurora is part of an open-source processing workflow that leverages the self-describing data container MTH5, which in turn leverages the general mt-metadata framework to manage metadata. These pre-existing packages simplify the processing by providing managed data structures, allowing for transfer functions to be generated with only a few lines of code. The processing depends on two inputs -- a table defining the data to use for TF estimation, and a JSON file specifying the processing parameters, both of which are generated automatically, and can be modified if desired. Output TFs are returned as mt_metadata objects, and can be exported to a variety of common formats for plotting, modeling and inversion.

Suggested Citation

Kappler, K., Peacock, J., Egbert, G.D., Frassetto, A., Heagy, L., Kelbert, A., Keyson, L., Oldenburg, D.W., Ronan, T., Sweet, J., 2024, Aurora: An open-source Python implementation of the EMTF package for magnetotelluric data processing using MTH5 and mt-metadata: Journal of Open Source Software, v. 9, no. 100, 6832, 7 p., https://doi.org/10.21105/joss.06832.

Additional publication details
Publication type	Article
Publication Subtype	Journal Article
Title	Aurora: An open-source Python implementation of the EMTF package for magnetotelluric data processing using MTH5 and mt-metadata
Series title	Journal of Open Source Software
DOI	10.21105/joss.06832
Volume	9
Issue	100
Year Published	2024
Language	English
Publisher	Open Source Initiative
Contributing office(s)	Geology, Minerals, Energy, and Geophysics Science Center
Description	6832, 7 p.