PARTOS-passive and active ray tomography software: Description and preliminary analysis using TOMO-ETNA experiment’s dataset

Alejandro Díaz-Moreno, Ivan Koulakov, Araceli García-Yeguas, Andrey Jakovlev, Graziella Barberi, Ornella Cocina, Luciano Zuccarello, Luciano Scarfì, Domenico Patanè, Isaac Álvarez, Luz García, Carmen Benítez, Janire Prudencio, Jesús M. Ibáñez

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

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Аннотация

In this manuscript we present the new friendly seismic tomography software based on joint inversion of active and passive seismic sources called PARTOS (Passive Active Ray TOmography Software). This code has been developed on the base of two well-known widely used tomographic algorithms (LOTOS and ATOM-3D), providing a robust set of algorithms. The dataset used to set and test the program has been provided by TOMO-ETNA experiment. TOMO-ETNA database is a large, highquality dataset that includes active and passive seismic sources recorded during a period of 4 months in 2014. We performed a series of synthetic tests in order to estimate the resolution and robustness of the solutions. Real data inversion has been carried out using 3 different subsets: (i) active data; (ii) passive data; and (iii) joint dataset. Active database is composed by a total of 16,950 air-gun shots during 1 month and passive database includes 452 local and regional earthquakes recorded during 4 months. This large dataset provides a high ray density within the study region. The combination of active and passive seismic data, together with the high quality of the database, permits to obtain a new tomographic approach of the region under study never done before. An additional user-guide of PARTOS software is provided in order to facilitate the implementation for new users.

Язык оригиналаанглийский
Номер статьиS0435
ЖурналAnnals of Geophysics
Том59
Номер выпуска4
DOI
СостояниеОпубликовано - 2016

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