MONTHLY MONITORING OF SURFACE WATER RESERVOIRS IN THE STATE OF PIAUÍ (BRAZIL) USING SATELLITE IMAGES AND CLOUD COMPUTING (2015 – 2021)

Detalhes bibliográficos
Autor(a) principal: Morais, Reurysson Chagas de Sousa
Data de Publicação: 2023
Tipo de documento: Artigo
Idioma: por
Título da fonte: Caminhos de Geografia
Texto Completo: https://seer.ufu.br/index.php/caminhosdegeografia/article/view/66989
Resumo: The objective of this work was to monitor the variation of the surface water extension of eight reservoirs in the state of Piauí, Brazil, and to evaluate the influence of precipitation on them. Monthly monitoring was carried out between 2015 and 2021 based on the Modified Normalized Difference Water Index (MNDWI), generated with images from the Sentinel-2 satellite, MultiSpectral Instrument (MSI) sensor, using Google Earth Engine. The association between surface water extension and precipitation was evaluated based on the correlation matrix. The results indicate that Lagoa do Portinho and the dam of Bocaina are in the process of recovering the stored volume, reflecting an increase in the extension of the water surface, opposite to what was observed in Lagoa de Parnaguá. Considering all reservoirs, a weak negative correlation was observed between the analyzed parameters. However, data from Lagoa do Portinho and Mesas de Pedra, Jenipapo and Algodões II dams showed a moderate positive correlation between surface water extension and rainfall recorded in previous months. The data suggest that other factors may be interfering with water stocks, such as changes in land cover and use, clandestine derivations, as well as groundwater contributions.
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spelling MONTHLY MONITORING OF SURFACE WATER RESERVOIRS IN THE STATE OF PIAUÍ (BRAZIL) USING SATELLITE IMAGES AND CLOUD COMPUTING (2015 – 2021)MONITORAMENTO MENSAL DE RESERVATÓRIOS HÍDRICOS SUPERFICIAIS DO ESTADO DO PIAUÍ (BRASIL) UTILIZANDO IMAGENS DE SATÉLITE E COMPUTAÇÃO EM NUVEM (2015 – 2021)Google Earth EngineÍndice de águaRecurso HídricosSentinel-2Google Earth EngineWater indexWater ResourceSentinel-2The objective of this work was to monitor the variation of the surface water extension of eight reservoirs in the state of Piauí, Brazil, and to evaluate the influence of precipitation on them. Monthly monitoring was carried out between 2015 and 2021 based on the Modified Normalized Difference Water Index (MNDWI), generated with images from the Sentinel-2 satellite, MultiSpectral Instrument (MSI) sensor, using Google Earth Engine. The association between surface water extension and precipitation was evaluated based on the correlation matrix. The results indicate that Lagoa do Portinho and the dam of Bocaina are in the process of recovering the stored volume, reflecting an increase in the extension of the water surface, opposite to what was observed in Lagoa de Parnaguá. Considering all reservoirs, a weak negative correlation was observed between the analyzed parameters. However, data from Lagoa do Portinho and Mesas de Pedra, Jenipapo and Algodões II dams showed a moderate positive correlation between surface water extension and rainfall recorded in previous months. The data suggest that other factors may be interfering with water stocks, such as changes in land cover and use, clandestine derivations, as well as groundwater contributions.O objetivo deste trabalho foi monitorar a variação da extensão superficial da água de oito reservatórios do estado do Piauí, Brasil, e avaliar a influência da precipitação sobre elas. O monitoramento mensal foi executado no período de 2015 e 2021 com base no Modified Normalized Difference Water Index (MNDWI), gerado com imagens do satélite Sentinel-2, sensor MultiSpectral Instrument (MSI), utilizando o Google Earth Engine. A associação entre a extensão superficial da água e precipitação foi avaliada com base na matriz de correlação. Os resultados indicam que a Lagoa do Portinho e barragem de Bocaina vêm em processo de recuperação do volume armazenado refletindo no aumento da extensão da superfície da água, oposto do observado na Lagoa de Parnaguá. Considerando todos os reservatórios, observou-se fraca correlação negativa entre os parâmetros analisados. Contudo, dados da Lagoa do Portinho e barragens Mesas de Pedra, Jenipapo e Algodões II demonstraram correlação positiva moderada entre a extensão superficial da água e as precipitações registradas nos meses anteriores. Os dados sugerem que outros fatores possam estar interferindo dos estoques hídricos, como as modificações na cobertura e uso da terra, derivações clandestinas, bem como as contribuições de águas subterrâneas.EDUFU - Editora da Universidade Federal de Uberlândia2023-10-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado pelos paresapplication/pdfhttps://seer.ufu.br/index.php/caminhosdegeografia/article/view/6698910.14393/RCG249566989Caminhos de Geografia; Vol. 24 No. 95 (2023): Outubro; 131-144Caminhos de Geografia; Vol. 24 Núm. 95 (2023): Outubro; 131-144Caminhos de Geografia; v. 24 n. 95 (2023): Outubro; 131-1441678-6343reponame:Caminhos de Geografiainstname:Universidade Federal de Uberlândia (UFU)instacron:UFUporhttps://seer.ufu.br/index.php/caminhosdegeografia/article/view/66989/36954Copyright (c) 2023 Reurysson Chagas de Sousa Moraishttp://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessMorais, Reurysson Chagas de Sousa2023-10-02T13:06:37Zoai:ojs.www.seer.ufu.br:article/66989Revistahttps://seer.ufu.br/index.php/caminhosdegeografia/indexPUBhttp://www.seer.ufu.br/index.php/caminhosdegeografia/oaiflaviasantosgeo@gmail.com1678-63431678-6343opendoar:2023-10-02T13:06:37Caminhos de Geografia - Universidade Federal de Uberlândia (UFU)false
dc.title.none.fl_str_mv MONTHLY MONITORING OF SURFACE WATER RESERVOIRS IN THE STATE OF PIAUÍ (BRAZIL) USING SATELLITE IMAGES AND CLOUD COMPUTING (2015 – 2021)
MONITORAMENTO MENSAL DE RESERVATÓRIOS HÍDRICOS SUPERFICIAIS DO ESTADO DO PIAUÍ (BRASIL) UTILIZANDO IMAGENS DE SATÉLITE E COMPUTAÇÃO EM NUVEM (2015 – 2021)
title MONTHLY MONITORING OF SURFACE WATER RESERVOIRS IN THE STATE OF PIAUÍ (BRAZIL) USING SATELLITE IMAGES AND CLOUD COMPUTING (2015 – 2021)
spellingShingle MONTHLY MONITORING OF SURFACE WATER RESERVOIRS IN THE STATE OF PIAUÍ (BRAZIL) USING SATELLITE IMAGES AND CLOUD COMPUTING (2015 – 2021)
Morais, Reurysson Chagas de Sousa
Google Earth Engine
Índice de água
Recurso Hídricos
Sentinel-2
Google Earth Engine
Water index
Water Resource
Sentinel-2
title_short MONTHLY MONITORING OF SURFACE WATER RESERVOIRS IN THE STATE OF PIAUÍ (BRAZIL) USING SATELLITE IMAGES AND CLOUD COMPUTING (2015 – 2021)
title_full MONTHLY MONITORING OF SURFACE WATER RESERVOIRS IN THE STATE OF PIAUÍ (BRAZIL) USING SATELLITE IMAGES AND CLOUD COMPUTING (2015 – 2021)
title_fullStr MONTHLY MONITORING OF SURFACE WATER RESERVOIRS IN THE STATE OF PIAUÍ (BRAZIL) USING SATELLITE IMAGES AND CLOUD COMPUTING (2015 – 2021)
title_full_unstemmed MONTHLY MONITORING OF SURFACE WATER RESERVOIRS IN THE STATE OF PIAUÍ (BRAZIL) USING SATELLITE IMAGES AND CLOUD COMPUTING (2015 – 2021)
title_sort MONTHLY MONITORING OF SURFACE WATER RESERVOIRS IN THE STATE OF PIAUÍ (BRAZIL) USING SATELLITE IMAGES AND CLOUD COMPUTING (2015 – 2021)
author Morais, Reurysson Chagas de Sousa
author_facet Morais, Reurysson Chagas de Sousa
author_role author
dc.contributor.author.fl_str_mv Morais, Reurysson Chagas de Sousa
dc.subject.por.fl_str_mv Google Earth Engine
Índice de água
Recurso Hídricos
Sentinel-2
Google Earth Engine
Water index
Water Resource
Sentinel-2
topic Google Earth Engine
Índice de água
Recurso Hídricos
Sentinel-2
Google Earth Engine
Water index
Water Resource
Sentinel-2
description The objective of this work was to monitor the variation of the surface water extension of eight reservoirs in the state of Piauí, Brazil, and to evaluate the influence of precipitation on them. Monthly monitoring was carried out between 2015 and 2021 based on the Modified Normalized Difference Water Index (MNDWI), generated with images from the Sentinel-2 satellite, MultiSpectral Instrument (MSI) sensor, using Google Earth Engine. The association between surface water extension and precipitation was evaluated based on the correlation matrix. The results indicate that Lagoa do Portinho and the dam of Bocaina are in the process of recovering the stored volume, reflecting an increase in the extension of the water surface, opposite to what was observed in Lagoa de Parnaguá. Considering all reservoirs, a weak negative correlation was observed between the analyzed parameters. However, data from Lagoa do Portinho and Mesas de Pedra, Jenipapo and Algodões II dams showed a moderate positive correlation between surface water extension and rainfall recorded in previous months. The data suggest that other factors may be interfering with water stocks, such as changes in land cover and use, clandestine derivations, as well as groundwater contributions.
publishDate 2023
dc.date.none.fl_str_mv 2023-10-02
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado pelos pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.ufu.br/index.php/caminhosdegeografia/article/view/66989
10.14393/RCG249566989
url https://seer.ufu.br/index.php/caminhosdegeografia/article/view/66989
identifier_str_mv 10.14393/RCG249566989
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.ufu.br/index.php/caminhosdegeografia/article/view/66989/36954
dc.rights.driver.fl_str_mv Copyright (c) 2023 Reurysson Chagas de Sousa Morais
http://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2023 Reurysson Chagas de Sousa Morais
http://creativecommons.org/licenses/by-nc-nd/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv EDUFU - Editora da Universidade Federal de Uberlândia
publisher.none.fl_str_mv EDUFU - Editora da Universidade Federal de Uberlândia
dc.source.none.fl_str_mv Caminhos de Geografia; Vol. 24 No. 95 (2023): Outubro; 131-144
Caminhos de Geografia; Vol. 24 Núm. 95 (2023): Outubro; 131-144
Caminhos de Geografia; v. 24 n. 95 (2023): Outubro; 131-144
1678-6343
reponame:Caminhos de Geografia
instname:Universidade Federal de Uberlândia (UFU)
instacron:UFU
instname_str Universidade Federal de Uberlândia (UFU)
instacron_str UFU
institution UFU
reponame_str Caminhos de Geografia
collection Caminhos de Geografia
repository.name.fl_str_mv Caminhos de Geografia - Universidade Federal de Uberlândia (UFU)
repository.mail.fl_str_mv flaviasantosgeo@gmail.com
_version_ 1797067010929065984

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