Dynamic time warping as an alternative to windowed cross correlation in seismological applications

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F22%3A00557352" target="_blank" >RIV/67985530:_____/22:00557352 - isvavai.cz</a>

Result on the web

<a href="https://pubs.geoscienceworld.org/ssa/srl/article/93/3/1909/612803/Dynamic-Time-Warping-as-an-Alternative-to-Windowed" target="_blank" >https://pubs.geoscienceworld.org/ssa/srl/article/93/3/1909/612803/Dynamic-Time-Warping-as-an-Alternative-to-Windowed</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1785/0220210288" target="_blank" >10.1785/0220210288</a>

Result language

angličtina

Original language name

Dynamic time warping as an alternative to windowed cross correlation in seismological applications

Original language description

We investigate the feasibility of using the dynamic time warping (DTW) technique as an alternative to windowed cross correlation (WCC) for an indirect measure to quantify both the similarity and relationship between two seismic time series. We first examine the sensitivity and performance of the DTW technique by analyzing both synthetic and real seismic time series in geophysical applications. Results show that DTW efficiently retrieves useful information from seismic data and has a high sensitivity to minor variations in time series that WCC fails to detect. We further propose four potential applications of DTW to routine seismic data interpretation-earthquake detection, template matching, clustering of waveforms, and full-waveform inversion for 1D velocity models. The earthquake detection scheme employing DTW is proposed in this study as an alternative to traditional methods. The accuracy of DTW in estimating similarity is explored for template matching and clustering of seismic traces. Finally, we discuss a realistic example of 1D Earth velocity model inversion using DTW and explore its feasibility in full-waveform inversion.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10507 - Volcanology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Seismological Research Letters

ISSN

0895-0695

e-ISSN

1938-2057

Volume of the periodical

93

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

1909-1921

UT code for WoS article

000792441000003

EID of the result in the Scopus database

2-s2.0-85130095208