GPR survey in the Taquari River, Pantanal Wetland, west-central Brazil
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1343535 http://hdl.handle.net/11449/68007 |
Resumo: | A pioneer GPR - Ground Penetrating Radar - survey was carried out in the Pantanal of Mato Grosso State, westcentral region of Brazil. Fieldwork acquisitions were carried out in February/2001 and August/2002 in order to understand avulsion processes that are occurring within the Taquari alluvial megafan. The main subjects were to map channel, crevasses and floodplain morphology, as well as active sedimentary bedforms. Many GPR profiles were surveyed in the medium and lower Taquari River course. Subaqueous megaripples and exposed sand bars inside the Taquari channel were identified in the medium fan area. Similar features were observed in the lower fan channels, where there are also many crevasses in the marginal levees. During the flooding seasons the flow splays out in the floodplain where new distributary channels are being formed. As shown by GPR data, in the lower fan the Taquari channel is topographically higher than the adjacent floodplain, situation in which avulsion is a natural process of river course shifting. The lack of information about river morphology and dynamics is a major strain to better understand the sediment transport and the avulsion processes in the Taquari megafan. In this context, the GPR data obtained in wet and dry seasons, integrated to sedimentological information, have been very important to characterize the fluvial dynamics and the avulsion phenomena. |
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GPR survey in the Taquari River, Pantanal Wetland, west-central BrazilBrazilFluvial avulsionGPRPantanal basinTaquari RiverFloodsFlow of waterGeological surveysGeomorphologyRiversSediment transportSedimentologyWetlandsFloodplainsPantanal basin, BrazilTaquari River, BrazilGround penetrating radar systemsA pioneer GPR - Ground Penetrating Radar - survey was carried out in the Pantanal of Mato Grosso State, westcentral region of Brazil. Fieldwork acquisitions were carried out in February/2001 and August/2002 in order to understand avulsion processes that are occurring within the Taquari alluvial megafan. The main subjects were to map channel, crevasses and floodplain morphology, as well as active sedimentary bedforms. Many GPR profiles were surveyed in the medium and lower Taquari River course. Subaqueous megaripples and exposed sand bars inside the Taquari channel were identified in the medium fan area. Similar features were observed in the lower fan channels, where there are also many crevasses in the marginal levees. During the flooding seasons the flow splays out in the floodplain where new distributary channels are being formed. As shown by GPR data, in the lower fan the Taquari channel is topographically higher than the adjacent floodplain, situation in which avulsion is a natural process of river course shifting. The lack of information about river morphology and dynamics is a major strain to better understand the sediment transport and the avulsion processes in the Taquari megafan. In this context, the GPR data obtained in wet and dry seasons, integrated to sedimentological information, have been very important to characterize the fluvial dynamics and the avulsion phenomena.Departamento de Geofísica Universidade de São Paulo, São PauloDepartamento de Geologia Aplicada Universidade Estadual Paulista, Rio ClaroDepartamento de Geologia Aplicada Universidade Estadual Paulista, Rio ClaroUniversidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)Porsani, Jorge LuísMoutinho, LeandroAssine, Mario Luis [UNESP]2014-05-27T11:21:13Z2014-05-27T11:21:13Z2004-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject593-596http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1343535Proceedings of the Tenth International Conference Ground Penetrating Radar, GPR 2004, v. 2, p. 593-596.http://hdl.handle.net/11449/680072-s2.0-162443915090471102133658128Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProceedings of the Tenth International Conference Ground Penetrating Radar, GPR 2004info:eu-repo/semantics/openAccess2021-10-23T21:37:54Zoai:repositorio.unesp.br:11449/68007Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T21:37:54Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
GPR survey in the Taquari River, Pantanal Wetland, west-central Brazil |
title |
GPR survey in the Taquari River, Pantanal Wetland, west-central Brazil |
spellingShingle |
GPR survey in the Taquari River, Pantanal Wetland, west-central Brazil Porsani, Jorge Luís Brazil Fluvial avulsion GPR Pantanal basin Taquari River Floods Flow of water Geological surveys Geomorphology Rivers Sediment transport Sedimentology Wetlands Floodplains Pantanal basin, Brazil Taquari River, Brazil Ground penetrating radar systems |
title_short |
GPR survey in the Taquari River, Pantanal Wetland, west-central Brazil |
title_full |
GPR survey in the Taquari River, Pantanal Wetland, west-central Brazil |
title_fullStr |
GPR survey in the Taquari River, Pantanal Wetland, west-central Brazil |
title_full_unstemmed |
GPR survey in the Taquari River, Pantanal Wetland, west-central Brazil |
title_sort |
GPR survey in the Taquari River, Pantanal Wetland, west-central Brazil |
author |
Porsani, Jorge Luís |
author_facet |
Porsani, Jorge Luís Moutinho, Leandro Assine, Mario Luis [UNESP] |
author_role |
author |
author2 |
Moutinho, Leandro Assine, Mario Luis [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Porsani, Jorge Luís Moutinho, Leandro Assine, Mario Luis [UNESP] |
dc.subject.por.fl_str_mv |
Brazil Fluvial avulsion GPR Pantanal basin Taquari River Floods Flow of water Geological surveys Geomorphology Rivers Sediment transport Sedimentology Wetlands Floodplains Pantanal basin, Brazil Taquari River, Brazil Ground penetrating radar systems |
topic |
Brazil Fluvial avulsion GPR Pantanal basin Taquari River Floods Flow of water Geological surveys Geomorphology Rivers Sediment transport Sedimentology Wetlands Floodplains Pantanal basin, Brazil Taquari River, Brazil Ground penetrating radar systems |
description |
A pioneer GPR - Ground Penetrating Radar - survey was carried out in the Pantanal of Mato Grosso State, westcentral region of Brazil. Fieldwork acquisitions were carried out in February/2001 and August/2002 in order to understand avulsion processes that are occurring within the Taquari alluvial megafan. The main subjects were to map channel, crevasses and floodplain morphology, as well as active sedimentary bedforms. Many GPR profiles were surveyed in the medium and lower Taquari River course. Subaqueous megaripples and exposed sand bars inside the Taquari channel were identified in the medium fan area. Similar features were observed in the lower fan channels, where there are also many crevasses in the marginal levees. During the flooding seasons the flow splays out in the floodplain where new distributary channels are being formed. As shown by GPR data, in the lower fan the Taquari channel is topographically higher than the adjacent floodplain, situation in which avulsion is a natural process of river course shifting. The lack of information about river morphology and dynamics is a major strain to better understand the sediment transport and the avulsion processes in the Taquari megafan. In this context, the GPR data obtained in wet and dry seasons, integrated to sedimentological information, have been very important to characterize the fluvial dynamics and the avulsion phenomena. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-12-01 2014-05-27T11:21:13Z 2014-05-27T11:21:13Z |
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://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1343535 Proceedings of the Tenth International Conference Ground Penetrating Radar, GPR 2004, v. 2, p. 593-596. http://hdl.handle.net/11449/68007 2-s2.0-16244391509 0471102133658128 |
url |
http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1343535 http://hdl.handle.net/11449/68007 |
identifier_str_mv |
Proceedings of the Tenth International Conference Ground Penetrating Radar, GPR 2004, v. 2, p. 593-596. 2-s2.0-16244391509 0471102133658128 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Proceedings of the Tenth International Conference Ground Penetrating Radar, GPR 2004 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
593-596 |
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) |
repository.mail.fl_str_mv |
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1803047208107376640 |