Monitoring of surface deformation in open pit mine using DInSAR time-series: A case study in the N5W iron mine (Carajás, Brazil) using TerraSAR-X data
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1117/12.2066886 http://hdl.handle.net/11449/171779 |
Resumo: | We present an investigation of surface deformation using Differential SAR Interferometry (DInSAR) time-series carried out in an active open pit iron mine, the N5W, located in the Carajás Mineral Province (Brazilian Amazon region), using 33 TerraSAR-X (TSX-1) scenes. This mine has presented a historical of instability and surface monitoring measurements over sectors of the mine (pit walls) have been done based on ground based radar. Two complementary approaches were used: the standard DInSAR configuration, as an early warning of the slope instability conditions, and the DInSAR timeseries analysis. In order to decrease the topographic phase error a high resolution DEM was generated based on a stereo GeoEye-1 pair. Despite the fact that a DinSAR contains atmospheric and topographic phase artifacts and noise, it was possible to detect deformation in some interferometric pairs, covering pit benches, road ramps and waste piles. The timeseries analysis was performed using the 31 interferometric pairs, which were selected based on the highest mean coherence of a stack of 107 interferograms, presenting less phase unwrapping errors. The time-series deformation was retrieved by the Least-Squares (LS) solution using an extension of the Singular Value Decomposition (SVD), with a set of additional weighted constrain on the acceleration deformation. The atmospheric phase artifacts were filtered in the space-time domain and the DEM height errors were estimated based on the normal baseline diversity. The DInSAR time-series investigation showed good results for monitoring surface displacement in the N5W mine located in a tropical rainforest environment, providing very useful information about the ground movement for alarm, planning and risk assessment. |
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Repositório Institucional da UNESP |
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Monitoring of surface deformation in open pit mine using DInSAR time-series: A case study in the N5W iron mine (Carajás, Brazil) using TerraSAR-X dataAmazon RegionDInSAR time-seriesOpen pit iron mineSurface deformationTerraSAR-XWe present an investigation of surface deformation using Differential SAR Interferometry (DInSAR) time-series carried out in an active open pit iron mine, the N5W, located in the Carajás Mineral Province (Brazilian Amazon region), using 33 TerraSAR-X (TSX-1) scenes. This mine has presented a historical of instability and surface monitoring measurements over sectors of the mine (pit walls) have been done based on ground based radar. Two complementary approaches were used: the standard DInSAR configuration, as an early warning of the slope instability conditions, and the DInSAR timeseries analysis. In order to decrease the topographic phase error a high resolution DEM was generated based on a stereo GeoEye-1 pair. Despite the fact that a DinSAR contains atmospheric and topographic phase artifacts and noise, it was possible to detect deformation in some interferometric pairs, covering pit benches, road ramps and waste piles. The timeseries analysis was performed using the 31 interferometric pairs, which were selected based on the highest mean coherence of a stack of 107 interferograms, presenting less phase unwrapping errors. The time-series deformation was retrieved by the Least-Squares (LS) solution using an extension of the Singular Value Decomposition (SVD), with a set of additional weighted constrain on the acceleration deformation. The atmospheric phase artifacts were filtered in the space-time domain and the DEM height errors were estimated based on the normal baseline diversity. The DInSAR time-series investigation showed good results for monitoring surface displacement in the N5W mine located in a tropical rainforest environment, providing very useful information about the ground movement for alarm, planning and risk assessment.National Institute for Space Research (INPE)São Paulo State University (FCT/UNESP)Federal University of Pará (IG/UFPA)São Paulo State University (FCT/UNESP)National Institute for Space Research (INPE)Universidade Estadual Paulista (Unesp)Universidade Federal do Pará (UFPA)Mura, José C.Paradella, Waldir R.Gama, Fabio F.Santos, Athos R.Galo, Mauricio [UNESP]Camargo, Paulo O. [UNESP]Silva, Arnaldo Q.Silva, Guilherme G.2018-12-11T16:57:08Z2018-12-11T16:57:08Z2014-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectapplication/pdfhttp://dx.doi.org/10.1117/12.2066886Proceedings of SPIE - The International Society for Optical Engineering, v. 9243.1996-756X0277-786Xhttp://hdl.handle.net/11449/17177910.1117/12.20668862-s2.0-849226480652-s2.0-84922648065.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProceedings of SPIE - The International Society for Optical Engineeringinfo:eu-repo/semantics/openAccess2023-11-14T06:16:16Zoai:repositorio.unesp.br:11449/171779Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-14T06:16:16Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Monitoring of surface deformation in open pit mine using DInSAR time-series: A case study in the N5W iron mine (Carajás, Brazil) using TerraSAR-X data |
title |
Monitoring of surface deformation in open pit mine using DInSAR time-series: A case study in the N5W iron mine (Carajás, Brazil) using TerraSAR-X data |
spellingShingle |
Monitoring of surface deformation in open pit mine using DInSAR time-series: A case study in the N5W iron mine (Carajás, Brazil) using TerraSAR-X data Mura, José C. Amazon Region DInSAR time-series Open pit iron mine Surface deformation TerraSAR-X |
title_short |
Monitoring of surface deformation in open pit mine using DInSAR time-series: A case study in the N5W iron mine (Carajás, Brazil) using TerraSAR-X data |
title_full |
Monitoring of surface deformation in open pit mine using DInSAR time-series: A case study in the N5W iron mine (Carajás, Brazil) using TerraSAR-X data |
title_fullStr |
Monitoring of surface deformation in open pit mine using DInSAR time-series: A case study in the N5W iron mine (Carajás, Brazil) using TerraSAR-X data |
title_full_unstemmed |
Monitoring of surface deformation in open pit mine using DInSAR time-series: A case study in the N5W iron mine (Carajás, Brazil) using TerraSAR-X data |
title_sort |
Monitoring of surface deformation in open pit mine using DInSAR time-series: A case study in the N5W iron mine (Carajás, Brazil) using TerraSAR-X data |
author |
Mura, José C. |
author_facet |
Mura, José C. Paradella, Waldir R. Gama, Fabio F. Santos, Athos R. Galo, Mauricio [UNESP] Camargo, Paulo O. [UNESP] Silva, Arnaldo Q. Silva, Guilherme G. |
author_role |
author |
author2 |
Paradella, Waldir R. Gama, Fabio F. Santos, Athos R. Galo, Mauricio [UNESP] Camargo, Paulo O. [UNESP] Silva, Arnaldo Q. Silva, Guilherme G. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
National Institute for Space Research (INPE) Universidade Estadual Paulista (Unesp) Universidade Federal do Pará (UFPA) |
dc.contributor.author.fl_str_mv |
Mura, José C. Paradella, Waldir R. Gama, Fabio F. Santos, Athos R. Galo, Mauricio [UNESP] Camargo, Paulo O. [UNESP] Silva, Arnaldo Q. Silva, Guilherme G. |
dc.subject.por.fl_str_mv |
Amazon Region DInSAR time-series Open pit iron mine Surface deformation TerraSAR-X |
topic |
Amazon Region DInSAR time-series Open pit iron mine Surface deformation TerraSAR-X |
description |
We present an investigation of surface deformation using Differential SAR Interferometry (DInSAR) time-series carried out in an active open pit iron mine, the N5W, located in the Carajás Mineral Province (Brazilian Amazon region), using 33 TerraSAR-X (TSX-1) scenes. This mine has presented a historical of instability and surface monitoring measurements over sectors of the mine (pit walls) have been done based on ground based radar. Two complementary approaches were used: the standard DInSAR configuration, as an early warning of the slope instability conditions, and the DInSAR timeseries analysis. In order to decrease the topographic phase error a high resolution DEM was generated based on a stereo GeoEye-1 pair. Despite the fact that a DinSAR contains atmospheric and topographic phase artifacts and noise, it was possible to detect deformation in some interferometric pairs, covering pit benches, road ramps and waste piles. The timeseries analysis was performed using the 31 interferometric pairs, which were selected based on the highest mean coherence of a stack of 107 interferograms, presenting less phase unwrapping errors. The time-series deformation was retrieved by the Least-Squares (LS) solution using an extension of the Singular Value Decomposition (SVD), with a set of additional weighted constrain on the acceleration deformation. The atmospheric phase artifacts were filtered in the space-time domain and the DEM height errors were estimated based on the normal baseline diversity. The DInSAR time-series investigation showed good results for monitoring surface displacement in the N5W mine located in a tropical rainforest environment, providing very useful information about the ground movement for alarm, planning and risk assessment. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01 2018-12-11T16:57:08Z 2018-12-11T16:57:08Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1117/12.2066886 Proceedings of SPIE - The International Society for Optical Engineering, v. 9243. 1996-756X 0277-786X http://hdl.handle.net/11449/171779 10.1117/12.2066886 2-s2.0-84922648065 2-s2.0-84922648065.pdf |
url |
http://dx.doi.org/10.1117/12.2066886 http://hdl.handle.net/11449/171779 |
identifier_str_mv |
Proceedings of SPIE - The International Society for Optical Engineering, v. 9243. 1996-756X 0277-786X 10.1117/12.2066886 2-s2.0-84922648065 2-s2.0-84922648065.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Proceedings of SPIE - The International Society for Optical Engineering |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
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1799964935805992960 |