Estimation of crustal vertical movements due to atmospheric loading effects by GPS observations

Detalhes bibliográficos
Autor(a) principal: Rodrigues,Erica Patias
Data de Publicação: 2007
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=S0102-261X2007000100004
Resumo: The objective of this paper is the estimation of vertical movements of the Earth's crust using data of 45 GPS permanent stations network situated in Europe and North of Asia (Siberia). First, daily positions are calculated with the GAMIT processing GPS data software, developed in the Massachusetts Institute of Technology, for a period of approximately 500 days (November and December 2000, the entire year of 2001 and January and February of 2002). Each daily solution is stabilized in a reference frame with the implication of a similitude transformation in the GLOBK software, also developed in the MIT, with the Kalman filter. The crust deforms vertically due to different phenomena (earthquakes, landslides¼). We focused in this project the effects caused by the atmospheric loading, it means the effects of the weight of the air's column which surrounds the GPS stations. This loading is calculated for a 2.5º × 2.5º resolution grid, with meteorological data provided of ECMWF (European Centre for Medium-range Weather Forecasts). The amplitude of these loadings is in the order of few millimetres up to 3 centimetres (Schuh et al., 2003). Finally we compare the vertical GPS permanent stations positions with the vertical movements of the Earth's crust due to atmospheric loading. We observed for some sites in Siberia a predominant effect during winter in the vertical component. For example, for IRKT station (Irkust, Russia) the correlation value for the year of 2001 is 0.61.
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spelling Estimation of crustal vertical movements due to atmospheric loading effects by GPS observationsatmospheric loadingGlobal Positioning Systemvertical movementsThe objective of this paper is the estimation of vertical movements of the Earth's crust using data of 45 GPS permanent stations network situated in Europe and North of Asia (Siberia). First, daily positions are calculated with the GAMIT processing GPS data software, developed in the Massachusetts Institute of Technology, for a period of approximately 500 days (November and December 2000, the entire year of 2001 and January and February of 2002). Each daily solution is stabilized in a reference frame with the implication of a similitude transformation in the GLOBK software, also developed in the MIT, with the Kalman filter. The crust deforms vertically due to different phenomena (earthquakes, landslides¼). We focused in this project the effects caused by the atmospheric loading, it means the effects of the weight of the air's column which surrounds the GPS stations. This loading is calculated for a 2.5º × 2.5º resolution grid, with meteorological data provided of ECMWF (European Centre for Medium-range Weather Forecasts). The amplitude of these loadings is in the order of few millimetres up to 3 centimetres (Schuh et al., 2003). Finally we compare the vertical GPS permanent stations positions with the vertical movements of the Earth's crust due to atmospheric loading. We observed for some sites in Siberia a predominant effect during winter in the vertical component. For example, for IRKT station (Irkust, Russia) the correlation value for the year of 2001 is 0.61.Sociedade Brasileira de Geofísica2007-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-261X2007000100004Revista Brasileira de Geofísica v.25 n.1 2007reponame:Revista Brasileira de Geofísica (Online)instname:Sociedade Brasileira de Geofísica (SBG)instacron:SBG10.1590/S0102-261X2007000100004info:eu-repo/semantics/openAccessRodrigues,Erica Patiaseng2007-12-10T00:00:00Zoai:scielo:S0102-261X2007000100004Revistahttp://www.scielo.br/rbgONGhttps://old.scielo.br/oai/scielo-oai.php||sbgf@sbgf.org.br1809-45110102-261Xopendoar:2007-12-10T00:00Revista Brasileira de Geofísica (Online) - Sociedade Brasileira de Geofísica (SBG)false
dc.title.none.fl_str_mv Estimation of crustal vertical movements due to atmospheric loading effects by GPS observations
title Estimation of crustal vertical movements due to atmospheric loading effects by GPS observations
spellingShingle Estimation of crustal vertical movements due to atmospheric loading effects by GPS observations
Rodrigues,Erica Patias
atmospheric loading
Global Positioning System
vertical movements
title_short Estimation of crustal vertical movements due to atmospheric loading effects by GPS observations
title_full Estimation of crustal vertical movements due to atmospheric loading effects by GPS observations
title_fullStr Estimation of crustal vertical movements due to atmospheric loading effects by GPS observations
title_full_unstemmed Estimation of crustal vertical movements due to atmospheric loading effects by GPS observations
title_sort Estimation of crustal vertical movements due to atmospheric loading effects by GPS observations
author Rodrigues,Erica Patias
author_facet Rodrigues,Erica Patias
author_role author
dc.contributor.author.fl_str_mv Rodrigues,Erica Patias
dc.subject.por.fl_str_mv atmospheric loading
Global Positioning System
vertical movements
topic atmospheric loading
Global Positioning System
vertical movements
description The objective of this paper is the estimation of vertical movements of the Earth's crust using data of 45 GPS permanent stations network situated in Europe and North of Asia (Siberia). First, daily positions are calculated with the GAMIT processing GPS data software, developed in the Massachusetts Institute of Technology, for a period of approximately 500 days (November and December 2000, the entire year of 2001 and January and February of 2002). Each daily solution is stabilized in a reference frame with the implication of a similitude transformation in the GLOBK software, also developed in the MIT, with the Kalman filter. The crust deforms vertically due to different phenomena (earthquakes, landslides¼). We focused in this project the effects caused by the atmospheric loading, it means the effects of the weight of the air's column which surrounds the GPS stations. This loading is calculated for a 2.5º × 2.5º resolution grid, with meteorological data provided of ECMWF (European Centre for Medium-range Weather Forecasts). The amplitude of these loadings is in the order of few millimetres up to 3 centimetres (Schuh et al., 2003). Finally we compare the vertical GPS permanent stations positions with the vertical movements of the Earth's crust due to atmospheric loading. We observed for some sites in Siberia a predominant effect during winter in the vertical component. For example, for IRKT station (Irkust, Russia) the correlation value for the year of 2001 is 0.61.
publishDate 2007
dc.date.none.fl_str_mv 2007-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-261X2007000100004
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0102-261X2007000100004
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.25 n.1 2007
reponame:Revista Brasileira de Geofísica (Online)
instname:Sociedade Brasileira de Geofísica (SBG)
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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
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