Determination of the critical threshold for the occurrence of fires in the Parque Nacional de Brasília (Brazil) through temporal analysis using spectral índices
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por eng |
Título da fonte: | Sociedade & natureza (Online) |
Texto Completo: | https://seer.ufu.br/index.php/sociedadenatureza/article/view/67446 |
Resumo: | The Brazilian Savannah is one of the largest biomes in Brazil. Unfortunately, human pressure is aggravating the degradation processes of the biome and, together with the drought processes, fire events are a major concern. Monitoring tools must be designed, especially those involving the concepts of remote sensing, in anticipation of the fire phenomenon, mitigating the devastating effects. Therefore, the present research aims to determine the critical threshold for the occurrence of fires through the diagnosis of the conditions of greenness, humidity and senescence of the vegetation using the temporal analysis of Sentinel-2 images in the Parque Nacional de Brasília. Therefore, it is necessary to quantitatively determine each condition through the analysis of past events, determining the criticality threshold that conditions the region to present conditions that favor the onset of a fire, as well as the construction of an algorithm, in the Google Earth Engine. The study area is the Parque Nacional de Brasília, with the image data collection Harmonized Sentinel-2 MSI: MultiSpectral Instrument, Level-1C inside the Google Earth Engine. The algorithm aims to build a masking system to remove materials from the scenes, as well as the calculation of the NDVI, NDII, PSRI and dNBR indices, extracting the data through the mask of burned pixels. It was possible to identify six periods of fire occurrence, the data extraction allowed the statistical determination of the threshold, which was 0,580 for the NDVI, 0,015 for the NDII and 0,150 for the PSRI. |
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Determination of the critical threshold for the occurrence of fires in the Parque Nacional de Brasília (Brazil) through temporal analysis using spectral índicesDeterminação do limiar crítico à ocorrência de incêndios no Parque Nacional de Brasília (Brasil) por meio da análise temporal utilizando índices espectraisAnáliseBiomaGoogle Earth EngineIncêndioMonitoramentoAnalysisBiomeGoogle Earth EngineFireMonitoringThe Brazilian Savannah is one of the largest biomes in Brazil. Unfortunately, human pressure is aggravating the degradation processes of the biome and, together with the drought processes, fire events are a major concern. Monitoring tools must be designed, especially those involving the concepts of remote sensing, in anticipation of the fire phenomenon, mitigating the devastating effects. Therefore, the present research aims to determine the critical threshold for the occurrence of fires through the diagnosis of the conditions of greenness, humidity and senescence of the vegetation using the temporal analysis of Sentinel-2 images in the Parque Nacional de Brasília. Therefore, it is necessary to quantitatively determine each condition through the analysis of past events, determining the criticality threshold that conditions the region to present conditions that favor the onset of a fire, as well as the construction of an algorithm, in the Google Earth Engine. The study area is the Parque Nacional de Brasília, with the image data collection Harmonized Sentinel-2 MSI: MultiSpectral Instrument, Level-1C inside the Google Earth Engine. The algorithm aims to build a masking system to remove materials from the scenes, as well as the calculation of the NDVI, NDII, PSRI and dNBR indices, extracting the data through the mask of burned pixels. It was possible to identify six periods of fire occurrence, the data extraction allowed the statistical determination of the threshold, which was 0,580 for the NDVI, 0,015 for the NDII and 0,150 for the PSRI.O Cerrado brasileiro é um dos maiores biomas do Brasil. Infelizmente a pressão antrópica está agravando os processos de degradação do bioma e juntamente com os processos de estiagem, os eventos de fogo surgem como grande fator de preocupação. Devem ser concebidos ferramentas de monitoramento, principalmente os que envolvem os conceitos de sensoriamento remoto, antepondo-se ao fenômeno de fogo, mitigando os efeitos devastadores. Sendo assim, a presente pesquisa tem como objetivo a determinação do limiar crítico à ocorrência de incêndios por meio do diagnóstico das condições de verdor, umidade e senescência da vegetação utilizando da análise temporal de imagens “Sentinel-2” no Parque Nacional de Brasília, para isso, faz-se necessário a determinação quantitativa de cada condição por meio da análise de eventos passados, determinando o limiar de criticidade que condicione a região apresentar condições que favoreçam o início de um incêndio bem como a construção de um algoritmo, no “Google Earth Engine”. Á área de estudo é o Parque Nacional de Brasília, com o acervo de dados de imagens “Harmonized Sentinel-2 MSI: MultiSpectral Instrument, Level-1C” dentro do “Google Earth Engine”. O algoritmo visa construir um sistema de máscaras para remover materiais das cenas, bem como o cálculo dos índices NDVI, NDII, PSRI e dNBR, extraindo os dados por meio da máscara de pixels queimados. Foi possível identificar seis períodos de ocorrência de fogo, a extração de dados permitiu a determinação estatística do limiar, sendo esse 0,580 para o NDVI, 0,015 para o NDII e 0.150 para o PSRI.Universidade Federal de Uberlândia2023-06-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://seer.ufu.br/index.php/sociedadenatureza/article/view/6744610.14393/SN-v35-2023-67446Sociedade & Natureza; Vol. 35 No. 1 (2023): Sociedade & Natureza; v. 35 n. 1 (2023): 1982-45130103-1570reponame:Sociedade & natureza (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUporenghttps://seer.ufu.br/index.php/sociedadenatureza/article/view/67446/36187https://seer.ufu.br/index.php/sociedadenatureza/article/view/67446/36188Copyright (c) 2022 Lucas Inácio Silva, Gustavo Macedo Mello Baptistahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessSilva, Lucas Inácio da Baptista, Gustavo Macedo de Mello2023-08-25T14:35:58Zoai:ojs.www.seer.ufu.br:article/67446Revistahttp://www.sociedadenatureza.ig.ufu.br/PUBhttps://seer.ufu.br/index.php/sociedadenatureza/oai||sociedade.natureza.ufu@gmail.com|| lucianamelo@ufu.br1982-45130103-1570opendoar:2023-08-25T14:35:58Sociedade & natureza (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Determination of the critical threshold for the occurrence of fires in the Parque Nacional de Brasília (Brazil) through temporal analysis using spectral índices Determinação do limiar crítico à ocorrência de incêndios no Parque Nacional de Brasília (Brasil) por meio da análise temporal utilizando índices espectrais |
title |
Determination of the critical threshold for the occurrence of fires in the Parque Nacional de Brasília (Brazil) through temporal analysis using spectral índices |
spellingShingle |
Determination of the critical threshold for the occurrence of fires in the Parque Nacional de Brasília (Brazil) through temporal analysis using spectral índices Silva, Lucas Inácio da Análise Bioma Google Earth Engine Incêndio Monitoramento Analysis Biome Google Earth Engine Fire Monitoring |
title_short |
Determination of the critical threshold for the occurrence of fires in the Parque Nacional de Brasília (Brazil) through temporal analysis using spectral índices |
title_full |
Determination of the critical threshold for the occurrence of fires in the Parque Nacional de Brasília (Brazil) through temporal analysis using spectral índices |
title_fullStr |
Determination of the critical threshold for the occurrence of fires in the Parque Nacional de Brasília (Brazil) through temporal analysis using spectral índices |
title_full_unstemmed |
Determination of the critical threshold for the occurrence of fires in the Parque Nacional de Brasília (Brazil) through temporal analysis using spectral índices |
title_sort |
Determination of the critical threshold for the occurrence of fires in the Parque Nacional de Brasília (Brazil) through temporal analysis using spectral índices |
author |
Silva, Lucas Inácio da |
author_facet |
Silva, Lucas Inácio da Baptista, Gustavo Macedo de Mello |
author_role |
author |
author2 |
Baptista, Gustavo Macedo de Mello |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Silva, Lucas Inácio da Baptista, Gustavo Macedo de Mello |
dc.subject.por.fl_str_mv |
Análise Bioma Google Earth Engine Incêndio Monitoramento Analysis Biome Google Earth Engine Fire Monitoring |
topic |
Análise Bioma Google Earth Engine Incêndio Monitoramento Analysis Biome Google Earth Engine Fire Monitoring |
description |
The Brazilian Savannah is one of the largest biomes in Brazil. Unfortunately, human pressure is aggravating the degradation processes of the biome and, together with the drought processes, fire events are a major concern. Monitoring tools must be designed, especially those involving the concepts of remote sensing, in anticipation of the fire phenomenon, mitigating the devastating effects. Therefore, the present research aims to determine the critical threshold for the occurrence of fires through the diagnosis of the conditions of greenness, humidity and senescence of the vegetation using the temporal analysis of Sentinel-2 images in the Parque Nacional de Brasília. Therefore, it is necessary to quantitatively determine each condition through the analysis of past events, determining the criticality threshold that conditions the region to present conditions that favor the onset of a fire, as well as the construction of an algorithm, in the Google Earth Engine. The study area is the Parque Nacional de Brasília, with the image data collection Harmonized Sentinel-2 MSI: MultiSpectral Instrument, Level-1C inside the Google Earth Engine. The algorithm aims to build a masking system to remove materials from the scenes, as well as the calculation of the NDVI, NDII, PSRI and dNBR indices, extracting the data through the mask of burned pixels. It was possible to identify six periods of fire occurrence, the data extraction allowed the statistical determination of the threshold, which was 0,580 for the NDVI, 0,015 for the NDII and 0,150 for the PSRI. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-06-14 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.ufu.br/index.php/sociedadenatureza/article/view/67446 10.14393/SN-v35-2023-67446 |
url |
https://seer.ufu.br/index.php/sociedadenatureza/article/view/67446 |
identifier_str_mv |
10.14393/SN-v35-2023-67446 |
dc.language.iso.fl_str_mv |
por eng |
language |
por eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/sociedadenatureza/article/view/67446/36187 https://seer.ufu.br/index.php/sociedadenatureza/article/view/67446/36188 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2022 Lucas Inácio Silva, Gustavo Macedo Mello Baptista https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2022 Lucas Inácio Silva, Gustavo Macedo Mello Baptista https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Uberlândia |
publisher.none.fl_str_mv |
Universidade Federal de Uberlândia |
dc.source.none.fl_str_mv |
Sociedade & Natureza; Vol. 35 No. 1 (2023): Sociedade & Natureza; v. 35 n. 1 (2023): 1982-4513 0103-1570 reponame:Sociedade & natureza (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Sociedade & natureza (Online) |
collection |
Sociedade & natureza (Online) |
repository.name.fl_str_mv |
Sociedade & natureza (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
||sociedade.natureza.ufu@gmail.com|| lucianamelo@ufu.br |
_version_ |
1799943983032434688 |