Suspended sediment transport estimation in Negro River (Amazon Basin) using MSI/Sentinel-2 data
<p>The dynamics of suspended sediment production and transport in large rivers are essential geomorphological<br />processes that can influence biodiversity. The aim of this work was to analyze the spatio-temporal variation of suspended<br />sediment transport in the lower Negro Ri...
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| Format: | Article |
| Language: | English |
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União da Geomorfologia Brasileira
2022-01-01
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| Series: | Revista Brasileira de Geomorfologia |
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| Online Access: | http://www.lsie.unb.br/rbg/index.php/rbg/article/view/2076 |
| _version_ | 1797228905361309696 |
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| author | Rogério Ribeiro Marinho Naziano Pantoja Filziola Jean-Michel Martinez Tristan Harmel |
| author_facet | Rogério Ribeiro Marinho Naziano Pantoja Filziola Jean-Michel Martinez Tristan Harmel |
| author_sort | Rogério Ribeiro Marinho |
| collection | DOAJ |
| description | <p>The dynamics of suspended sediment production and transport in large rivers are essential geomorphological<br />processes that can influence biodiversity. The aim of this work was to analyze the spatio-temporal variation of suspended<br />sediment transport in the lower Negro River using Sentinel-2 images. The suspended sediment concentration (SSC) was<br />estimated from the reflectance of band 4 of the MSI sensor onboard the Sentinel-2A and Sentinel-2B. The results indicate that<br />the hydrological regime controls the temporal variability of SSC, being higher in the low water period and lower during<br />flooding, with a mean concentration of 5.28 mg L-1 for the period 2015–2019. Analysis of the spatial variation of SSC in<br />Sentinel-2 images indicated a zone of active sediment deposition located downstream of the islands of the Anavilhanas<br />Archipelago. Geology, forest cover, and hydrological variability are the main factors controlling the low sediment yield of the<br />basin, with an estimated suspended solid flux of 5.76×106 ton∙year-1 and a specific yield of 8 ton∙km-2∙year-1. Despite the lower<br />quantity of images between February and April, due to high cloud cover, this study showed that Sentinel-2 images could be<br />used to monitor the temporal and spatial dynamics of suspended sediment transport in Amazonian blackwater rivers.</p> |
| first_indexed | 2024-04-24T15:04:07Z |
| format | Article |
| id | doaj.art-5763b15398184be5b6384e9aff6a5dec |
| institution | Directory Open Access Journal |
| issn | 1519-1540 2236-5664 |
| language | English |
| last_indexed | 2024-04-24T15:04:07Z |
| publishDate | 2022-01-01 |
| publisher | União da Geomorfologia Brasileira |
| record_format | Article |
| series | Revista Brasileira de Geomorfologia |
| spelling | doaj.art-5763b15398184be5b6384e9aff6a5dec2024-04-02T13:42:39ZengUnião da Geomorfologia BrasileiraRevista Brasileira de Geomorfologia1519-15402236-56642022-01-0123110.20502/rbg.v23i1.2076682Suspended sediment transport estimation in Negro River (Amazon Basin) using MSI/Sentinel-2 dataRogério Ribeiro Marinho0Naziano Pantoja Filziola1Jean-Michel Martinez2Tristan Harmel3Universidade Federal do AmazonasUniversidade Federal do AmazonasInstitut de recherche pour le developpementGéosciences Environnement Toulouse Centre national de la Recherche Scientifique<p>The dynamics of suspended sediment production and transport in large rivers are essential geomorphological<br />processes that can influence biodiversity. The aim of this work was to analyze the spatio-temporal variation of suspended<br />sediment transport in the lower Negro River using Sentinel-2 images. The suspended sediment concentration (SSC) was<br />estimated from the reflectance of band 4 of the MSI sensor onboard the Sentinel-2A and Sentinel-2B. The results indicate that<br />the hydrological regime controls the temporal variability of SSC, being higher in the low water period and lower during<br />flooding, with a mean concentration of 5.28 mg L-1 for the period 2015–2019. Analysis of the spatial variation of SSC in<br />Sentinel-2 images indicated a zone of active sediment deposition located downstream of the islands of the Anavilhanas<br />Archipelago. Geology, forest cover, and hydrological variability are the main factors controlling the low sediment yield of the<br />basin, with an estimated suspended solid flux of 5.76×106 ton∙year-1 and a specific yield of 8 ton∙km-2∙year-1. Despite the lower<br />quantity of images between February and April, due to high cloud cover, this study showed that Sentinel-2 images could be<br />used to monitor the temporal and spatial dynamics of suspended sediment transport in Amazonian blackwater rivers.</p>http://www.lsie.unb.br/rbg/index.php/rbg/article/view/2076concentração de sedimento suspensoescudos das guianassensoriamento remoto |
| spellingShingle | Rogério Ribeiro Marinho Naziano Pantoja Filziola Jean-Michel Martinez Tristan Harmel Suspended sediment transport estimation in Negro River (Amazon Basin) using MSI/Sentinel-2 data Revista Brasileira de Geomorfologia concentração de sedimento suspenso escudos das guianas sensoriamento remoto |
| title | Suspended sediment transport estimation in Negro River (Amazon Basin) using MSI/Sentinel-2 data |
| title_full | Suspended sediment transport estimation in Negro River (Amazon Basin) using MSI/Sentinel-2 data |
| title_fullStr | Suspended sediment transport estimation in Negro River (Amazon Basin) using MSI/Sentinel-2 data |
| title_full_unstemmed | Suspended sediment transport estimation in Negro River (Amazon Basin) using MSI/Sentinel-2 data |
| title_short | Suspended sediment transport estimation in Negro River (Amazon Basin) using MSI/Sentinel-2 data |
| title_sort | suspended sediment transport estimation in negro river amazon basin using msi sentinel 2 data |
| topic | concentração de sedimento suspenso escudos das guianas sensoriamento remoto |
| url | http://www.lsie.unb.br/rbg/index.php/rbg/article/view/2076 |
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