Influence of sea water resistivity on MCSEM data

Detalhes bibliográficos
Autor(a) principal: Luz,Edelson da Cruz
Data de Publicação: 2009
Outros Autores: Régis,Cícero Roberto Teixeira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Geofísica (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-261X2009000300004
Resumo: The Marine Controlled Source ElectroMagnetic (MCSEM) method is a geophysical tool for the detection of resistive targets in the subsurface of the oceanic floor. In this work we model MCSEM data in one-dimensional environments, including variations in the resistivity of the ocean water, as horizontal layers of uniform resistivity. Such variations can arise from the influence of marine currents, temperature gradients or any other source of influence on the water salinity.We study the effect of such variations on the MCSEM data. Our results show that the interpretation can be strongly influenced, especially for normalized data. We see that changes in the water resistivity have a similar effect on the data as changes in the water depth, and that both affect the attenuation of the so called "air-wave".
id SBG-3_4ee68f6effceca8f7ee9e4960bfa4629
oai_identifier_str oai:scielo:S0102-261X2009000300004
network_acronym_str SBG-3
network_name_str Revista Brasileira de Geofísica (Online)
repository_id_str
spelling Influence of sea water resistivity on MCSEM dataMCSEMmodelingsea water resistivityThe Marine Controlled Source ElectroMagnetic (MCSEM) method is a geophysical tool for the detection of resistive targets in the subsurface of the oceanic floor. In this work we model MCSEM data in one-dimensional environments, including variations in the resistivity of the ocean water, as horizontal layers of uniform resistivity. Such variations can arise from the influence of marine currents, temperature gradients or any other source of influence on the water salinity.We study the effect of such variations on the MCSEM data. Our results show that the interpretation can be strongly influenced, especially for normalized data. We see that changes in the water resistivity have a similar effect on the data as changes in the water depth, and that both affect the attenuation of the so called "air-wave".Sociedade Brasileira de Geofísica2009-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-261X2009000300004Revista Brasileira de Geofísica v.27 n.3 2009reponame:Revista Brasileira de Geofísica (Online)instname:Sociedade Brasileira de Geofísica (SBG)instacron:SBG10.1590/S0102-261X2009000300004info:eu-repo/semantics/openAccessLuz,Edelson da CruzRégis,Cícero Roberto Teixeiraeng2010-04-06T00:00:00Zoai:scielo:S0102-261X2009000300004Revistahttp://www.scielo.br/rbgONGhttps://old.scielo.br/oai/scielo-oai.php||sbgf@sbgf.org.br1809-45110102-261Xopendoar:2010-04-06T00:00Revista Brasileira de Geofísica (Online) - Sociedade Brasileira de Geofísica (SBG)false
dc.title.none.fl_str_mv Influence of sea water resistivity on MCSEM data
title Influence of sea water resistivity on MCSEM data
spellingShingle Influence of sea water resistivity on MCSEM data
Luz,Edelson da Cruz
MCSEM
modeling
sea water resistivity
title_short Influence of sea water resistivity on MCSEM data
title_full Influence of sea water resistivity on MCSEM data
title_fullStr Influence of sea water resistivity on MCSEM data
title_full_unstemmed Influence of sea water resistivity on MCSEM data
title_sort Influence of sea water resistivity on MCSEM data
author Luz,Edelson da Cruz
author_facet Luz,Edelson da Cruz
Régis,Cícero Roberto Teixeira
author_role author
author2 Régis,Cícero Roberto Teixeira
author2_role author
dc.contributor.author.fl_str_mv Luz,Edelson da Cruz
Régis,Cícero Roberto Teixeira
dc.subject.por.fl_str_mv MCSEM
modeling
sea water resistivity
topic MCSEM
modeling
sea water resistivity
description The Marine Controlled Source ElectroMagnetic (MCSEM) method is a geophysical tool for the detection of resistive targets in the subsurface of the oceanic floor. In this work we model MCSEM data in one-dimensional environments, including variations in the resistivity of the ocean water, as horizontal layers of uniform resistivity. Such variations can arise from the influence of marine currents, temperature gradients or any other source of influence on the water salinity.We study the effect of such variations on the MCSEM data. Our results show that the interpretation can be strongly influenced, especially for normalized data. We see that changes in the water resistivity have a similar effect on the data as changes in the water depth, and that both affect the attenuation of the so called "air-wave".
publishDate 2009
dc.date.none.fl_str_mv 2009-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-261X2009000300004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-261X2009000300004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0102-261X2009000300004
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Geofísica
publisher.none.fl_str_mv Sociedade Brasileira de Geofísica
dc.source.none.fl_str_mv Revista Brasileira de Geofísica v.27 n.3 2009
reponame:Revista Brasileira de Geofísica (Online)
instname:Sociedade Brasileira de Geofísica (SBG)
instacron:SBG
instname_str Sociedade Brasileira de Geofísica (SBG)
instacron_str SBG
institution SBG
reponame_str Revista Brasileira de Geofísica (Online)
collection Revista Brasileira de Geofísica (Online)
repository.name.fl_str_mv Revista Brasileira de Geofísica (Online) - Sociedade Brasileira de Geofísica (SBG)
repository.mail.fl_str_mv ||sbgf@sbgf.org.br
_version_ 1754820937299001344

Registros relacionados