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1. Identity statement
Reference TypeJournal Article
Sitemtc-m21d.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34T/45BTMUS
Repositorysid.inpe.br/mtc-m21d/2021/08.31.12.22
Last Update2021:08.31.12.22.03 (UTC) simone
Metadata Repositorysid.inpe.br/mtc-m21d/2021/08.31.12.22.03
Metadata Last Update2022:04.03.22.27.32 (UTC) administrator
DOI10.1117/1.JRS.15.034513
ISSN1931-3195
Citation KeyMuraGamParOliRod:2021:GrDiRe
TitleGround displacements revealed by A-DInSAR analysis in the Germano iron mining complex before and after the Fundao Dam collapse using Sentinel-1 data
Year2021
MonthAug.
Access Date2024, May 19
Type of Workjournal article
Secondary TypePRE PI
Number of Files1
Size29096 KiB
2. Context
Author1 Mura, José Cláudio
2 Gama, Fábio Furlan
3 Paradella, Waldir Renato
4 Oliveira, Cleber Gonzalez de
5 Rodrigues, Thiago Gonçalves
Resume Identifier1 8JMKD3MGP5W/3C9JHGR
2 8JMKD3MGP5W/3C9JH3P
3 8JMKD3MGP5W/3C9JJBT
ORCID1
2
3
4 0000-0003-4733-3462
Group1 DIOTG-CGCT-INPE-MCTI-GOV-BR
2 DIOTG-CGCT-INPE-MCTI-GOV-BR
Affiliation1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Instituto Nacional de Pesquisas Espaciais (INPE)
4 VISIONA Tecnologia Espacial
5 VISIONA Tecnologia Espacial
Author e-Mail Address1 jose.mura@inpe.br
JournalJournal of Applied Remote Sensing
Volume15
Number3
Pagese034513
Secondary MarkA2_GEOGRAFIA B1_GEOCIÊNCIAS B1_CIÊNCIAS_AGRÁRIAS_I B1_BIODIVERSIDADE B5_CIÊNCIAS_AMBIENTAIS
History (UTC)2021-08-31 12:22:03 :: simone -> administrator ::
2021-08-31 12:22:04 :: administrator -> simone :: 2021
2021-08-31 12:23:25 :: simone -> administrator :: 2021
2022-04-03 22:27:32 :: administrator -> simone :: 2021
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsMariana
Fundao
tailing dam
collapse
advanced differential SAR interferometry
Sentinel-1
AbstractAdvanced differential SAR interferometry (A-DInSAR) has been used as an effective monitoring tool in mining environments. This work presents an investigation of surface displacement in the Germano iron mining complex (Mariana, Minas Gerais, Brazil), where on November 5, 2015, the Fundao tailings dam collapsed. Initially, the analysis was performed with 14 Sentinel-1 images, acquired from May 8, 2015, to November 4, 2015, and focused on the Fundao dam before its rupture to detect prior signs of surface deformations. The analysis after the Fundao dam collapse was conducted in the Germano area using 43 Sentinel-1 images, acquired from November 16, 2015 to May 15, 2017, and aimed at detecting surface displacement on the remaining infrastructure, the Sela&Tulipa and Selinha dikes and the main Germano tailings dam, which were directly or indirectly affected by the accident. The results reveal precursor signals of surface displacement at the Fundao dam prior to rupture, particularly on the left abutment setback sector where the collapse started according to a witness, reaching accumulated values of up to -60 mm. The results provided by the A-DInSAR analysis after the dam collapse indicate a stability in the Sela&Tulipa and Selinha dikes as well as in the main Germano dam, which is corroborated by in situ topographic measurements. On the auxiliary dikes within the Germano reservoir, accumulated displacement of up to -90 mm caused by settlements and continuous traffic of vehicles was detected. In addition, the detected accumulate displacement within the reservoir showed values of up to -120 mm, in general caused by settlements of the waste dry material due to the inactivity of the mining process. The investigation emphasized the important role that satellite-based A-DInSAR can play in mitigating possible accidents and for operational planning and risk assessment in mining operations. (C) 2021 Society of Photo-Optical Instrumentation Engineers (SPIE).
AreaSRE
Arrangementurlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCT > Ground displacements revealed...
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data URLhttp://urlib.net/ibi/8JMKD3MGP3W34T/45BTMUS
zipped data URLhttp://urlib.net/zip/8JMKD3MGP3W34T/45BTMUS
Languageen
Target FileMura_ground.pdf
User Groupsimone
Reader Groupadministrator
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Update Permissionnot transferred
5. Allied materials
Next Higher Units8JMKD3MGPCW/46KUATE
Citing Item Listsid.inpe.br/mtc-m21/2012/07.13.14.45.57 1
sid.inpe.br/mtc-m21/2012/07.13.14.51.50 1
DisseminationWEBSCI; PORTALCAPES; COMPENDEX; SCOPUS.
Host Collectionurlib.net/www/2021/06.04.03.40
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