SH Seismoelectric Response of a Glacier : An Analytic Study

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In this work we derive the analytic solutions to the system of equations modeling, within the framework of Pride's theory, the seismic-to-electromagnetic conversions taking place in a glacial environment. Considering a one-dimensional approach, we set a pure shear horizontal wave seismic source...

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Detalles Bibliográficos
Autores principales: Monachesi, Leonardo Bruno, Zyserman, Fabio Iván, Jouniaux, L.
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2018
Materias:
Geoquímica
Ciencias Exactas
Ciencias Naturales
Geofísica
Electrical properties
Glaciers
Seismoelectrics
Wave propagation
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/97448
https://ri.conicet.gov.ar/11336/82819
http://doi.wiley.com/10.1029/2018JF004607
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-97448
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Geoquímica
Ciencias Exactas
Ciencias Naturales
Geofísica
Electrical properties
Glaciers
Seismoelectrics
Wave propagation
spellingShingle Geoquímica
Ciencias Exactas
Ciencias Naturales
Geofísica
Electrical properties
Glaciers
Seismoelectrics
Wave propagation
Monachesi, Leonardo Bruno
Zyserman, Fabio Iván
Jouniaux, L.
SH Seismoelectric Response of a Glacier : An Analytic Study
topic_facet Geoquímica
Ciencias Exactas
Ciencias Naturales
Geofísica
Electrical properties
Glaciers
Seismoelectrics
Wave propagation
description In this work we derive the analytic solutions to the system of equations modeling, within the framework of Pride's theory, the seismic-to-electromagnetic conversions taking place in a glacial environment. Considering a one-dimensional approach, we set a pure shear horizontal wave seismic source on top of an elastic medium representing the glacier, which overlies a porous medium fully saturated with water, representing the glacier bed. The obtained solutions allow to separately represent and analyze the induced electromagnetic responses, the so called coseismic waves, for both the electric and magnetic fields along with the signals originated at the glacier bottom, the electric interface response, and magnetic interface response. We also propose approximate solutions, useful to be used in a fast inversion algorithm. We analyze the characteristics of the induced electromagnetic signals and their dependence on the type of glacier bed, considering an unconsolidated one and a consolidated one. The main results of the present paper are manifold, on the one hand, the mentioned analytic solutions, on the other hand, that the electric interface response originated at the glacier bottom is proportional to the electric current density at this depth, and depends on textural and electrical properties of the basement. We also showed that the amplitude of the electric interface response is three orders of magnitude higher than the amplitude of the electric coseismic field. This fact reinforces the idea proposed in our previous works that it would be interesting to test shear horizontal seismoelectrics as a possible geophysical prospecting and monitoring tool.
format Articulo
Preprint
author Monachesi, Leonardo Bruno
Zyserman, Fabio Iván
Jouniaux, L.
author_facet Monachesi, Leonardo Bruno
Zyserman, Fabio Iván
Jouniaux, L.
author_sort Monachesi, Leonardo Bruno
title SH Seismoelectric Response of a Glacier : An Analytic Study
title_short SH Seismoelectric Response of a Glacier : An Analytic Study
title_full SH Seismoelectric Response of a Glacier : An Analytic Study
title_fullStr SH Seismoelectric Response of a Glacier : An Analytic Study
title_full_unstemmed SH Seismoelectric Response of a Glacier : An Analytic Study
title_sort sh seismoelectric response of a glacier : an analytic study
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/97448
https://ri.conicet.gov.ar/11336/82819
http://doi.wiley.com/10.1029/2018JF004607
work_keys_str_mv AT monachesileonardobruno shseismoelectricresponseofaglacierananalyticstudy
AT zysermanfabioivan shseismoelectricresponseofaglacierananalyticstudy
AT jouniauxl shseismoelectricresponseofaglacierananalyticstudy
bdutipo_str Repositorios
_version_ 1764820492780306434

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