dor_id: 4133492

506.#.#.a: Público

590.#.#.d: Los artículos enviados a la revista "Geofísica Internacional", se juzgan por medio de un proceso de revisión por pares

510.0.#.a: Consejo Nacional de Ciencia y Tecnología (CONACyT); Scientific Electronic Library Online (SciELO); SCOPUS, Dialnet, Directory of Open Access Journals (DOAJ); Geobase

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650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

336.#.#.b: article

336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

351.#.#.6: http://revistagi.geofisica.unam.mx/index.php/RGI

351.#.#.b: Geofísica Internacional

351.#.#.a: Artículos

harvesting_group: RevistasUNAM

270.1.#.p: Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

590.#.#.c: Open Journal Systems (OJS)

270.#.#.d: MX

270.1.#.d: México

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883.#.#.a: Revistas UNAM

590.#.#.a: Coordinación de Difusión Cultural

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883.#.#.q: Dirección General de Publicaciones y Fomento Editorial

850.#.#.a: Universidad Nacional Autónoma de México

856.4.0.u: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/361/389

100.1.#.a: Flores, Carlos; López-moya, Armando

524.#.#.a: Flores, Carlos, et al. (2011). A comparison of three geoelectric methods in the presence of shallow. Geofísica Internacional; Vol. 50 Núm. 4: Octubre 1, 2011; 371-399. Recuperado de https://repositorio.unam.mx/contenidos/4133492

245.1.0.a: A comparison of three geoelectric methods in the presence of shallow

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Geofísica, UNAM

264.#.0.c: 2011

264.#.1.c: 2011-10-01

653.#.#.a: heterogeneidades eléctricas someras; método TEM; método VLF; método SEV; shallow electrical inhomogeneities; TEM method; VLF method; VES method

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-SA 4.0 Internacional, https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico revistagi@igeofisica.unam.mx

884.#.#.k: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/361

001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/361

041.#.7.h: spa

520.3.#.a: Shallow variations of electrical resistivity often interfere with the interpretation of data from electric and electromagnetic surveys in terms of a 1–D subsurface. We interpret data of two resistivity (vertical electric sounding, VES, and dipole–dipole profiling) and two electromagnetic methods (very low frequency–resistivity profiling, VLF–R, and transient electromagnetic, TEM, soundings) over three shallow inhomogeneities: a metallic pipe, an outcropping granite wall, and a barbed–wire fence. By applying several of 1–D, 2–D, and 2.5–D numerical algorithms we estimate the subsurface resistivity structure, and the perturbing effect of the lateral inhomogeneities. Only in the case of the granitic wall a need for a 3–D algorithm to model the TEM data was apparent. The VLF–R method was useful as it detected the presence of inhomogeneities that might have remained unnoticed by the other methods. The VES and TEM methods turned out to be complementary in several aspects. The VES data were not affected by the conductive inhomogeneities and the shallow resistivity structure was better resolved. On the other hand, the TEM method was not affected by high contact resistances and was immune to the equivalence problem affecting the VES data. Despite its impervious paint cover, the pipe perturbed the galvanic current flow. The presence of the fence with metallic posts produced a strong VLF–R anomaly and affected the neighboring TEM soundings. The fences with wooden posts produced no anomaly.doi: https://doi.org/10.22201/igeof.00167169p.2011.50.4.151  

773.1.#.t: Geofísica Internacional; Vol. 50 Núm. 4: Octubre 1, 2011; 371-399

773.1.#.o: http://revistagi.geofisica.unam.mx/index.php/RGI

022.#.#.a: ISSN-L: 2954-436X; ISSN impreso: 0016-7169

310.#.#.a: Trimestral

300.#.#.a: Páginas: 371-399

264.#.1.b: Instituto de Geofísica, UNAM

doi: https://doi.org/10.22201/igeof.00167169p.2011.50.4.151

handle: 00fc7abe43d98e61

harvesting_date: 2023-06-20 16:00:00.0

856.#.0.q: application/pdf

file_creation_date: 2011-10-12 00:35:30.0

file_modification_date: 2022-07-04 19:37:10.0

file_creator: Flores C.

file_name: 04170c104649477a6f69723a2562dec2d146c748c61b6e08408091bcf2de5bdb.pdf

file_pages_number: 29

file_format_version: application/pdf; version=1.4

file_size: 1745684

245.1.0.b: A comparison of three geoelectric methods in the presence of shallow 2-D inhomogeneities: A case study

last_modified: 2023-06-20 16:00:00

license_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es

license_type: by-nc-sa

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Artículo

A comparison of three geoelectric methods in the presence of shallow

Flores, Carlos; López-moya, Armando

Instituto de Geofísica, UNAM, publicado en Geofísica Internacional, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Instituto de Geofísica, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Flores, Carlos, et al. (2011). A comparison of three geoelectric methods in the presence of shallow. Geofísica Internacional; Vol. 50 Núm. 4: Octubre 1, 2011; 371-399. Recuperado de https://repositorio.unam.mx/contenidos/4133492

Descripción del recurso

Autor(es)
Flores, Carlos; López-moya, Armando
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
A comparison of three geoelectric methods in the presence of shallow
Fecha
2011-10-01
Resumen
Shallow variations of electrical resistivity often interfere with the interpretation of data from electric and electromagnetic surveys in terms of a 1–D subsurface. We interpret data of two resistivity (vertical electric sounding, VES, and dipole–dipole profiling) and two electromagnetic methods (very low frequency–resistivity profiling, VLF–R, and transient electromagnetic, TEM, soundings) over three shallow inhomogeneities: a metallic pipe, an outcropping granite wall, and a barbed–wire fence. By applying several of 1–D, 2–D, and 2.5–D numerical algorithms we estimate the subsurface resistivity structure, and the perturbing effect of the lateral inhomogeneities. Only in the case of the granitic wall a need for a 3–D algorithm to model the TEM data was apparent. The VLF–R method was useful as it detected the presence of inhomogeneities that might have remained unnoticed by the other methods. The VES and TEM methods turned out to be complementary in several aspects. The VES data were not affected by the conductive inhomogeneities and the shallow resistivity structure was better resolved. On the other hand, the TEM method was not affected by high contact resistances and was immune to the equivalence problem affecting the VES data. Despite its impervious paint cover, the pipe perturbed the galvanic current flow. The presence of the fence with metallic posts produced a strong VLF–R anomaly and affected the neighboring TEM soundings. The fences with wooden posts produced no anomaly.doi: https://doi.org/10.22201/igeof.00167169p.2011.50.4.151  
Tema
heterogeneidades eléctricas someras; método TEM; método VLF; método SEV; shallow electrical inhomogeneities; TEM method; VLF method; VES method
Idioma
spa
ISSN
ISSN-L: 2954-436X; ISSN impreso: 0016-7169

Enlaces