Fire analysis in the Caatinga environment from Landsat-8 images, enhanced vegetation index and analysis by the main components
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/43818 |
Resumo: | Fires generate negative environmental and socioeconomic impacts that directly and indirectly influence the Earth's regional and global climate changes. Forest fires and fires play a relevant ecological role as they affect the local biodiversity, soil properties and water supply. The Caatinga biome has a high level of degradation of human and natural activities, being extremely affected by fires that burn predominantly due to human activities. Remote orbital sensing, as it presents specific spatial, spectral and temporal characteristics, is an essential technological alternative in monitoring areas affected by fire on the Earth's surface. This work aimed to analyze, in a spatial, spectral and temporal scope, the behavior of a fire in a Caatinga environment from the multivariate statistical analysis of Landsat-8 Images data, Enhanced Vegetation Index and Analysis by theMajor Components. The quantification of characteristics of vegetation derived from the spectral index provides a better assessment of the physical condition of the earth's surface under the effects of fire. Remote sensing techniques and multivariate statistics were used to assess the spectral behavior of wildfires in the Caatinga biome. The results of the Kolmogorov-Smirnov Normality Test showed a significance level of 5%. The integration of the statistical methods of Simple Linear Regression and Analysis by the Principal Components enabled important diagnoses in the estimates and/or relationships between the random variables. The multivariate technique allowed 94% of the data variation to be assessed. The maps resulting from the tested methodology represent an important improvement in mapping the distribution of vegetation. This study generates indications for future scientific research related to the management of space concerning to vulnerability and recovery of vegetation landscapes from the semi-arid climate under fire situations generated by burnings. |
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Fire analysis in the Caatinga environment from Landsat-8 images, enhanced vegetation index and analysis by the main componentsAvaliação de incêndio em ambiente de Caatinga a partir de imagens Landsat-8, índice de vegetação realçado e análise por componentes principaisVegetation CoverFiresRemote Sensing and StatisticsCobertura VegetalIncêndiosSensoriamento Remoto e EstatísticaFires generate negative environmental and socioeconomic impacts that directly and indirectly influence the Earth's regional and global climate changes. Forest fires and fires play a relevant ecological role as they affect the local biodiversity, soil properties and water supply. The Caatinga biome has a high level of degradation of human and natural activities, being extremely affected by fires that burn predominantly due to human activities. Remote orbital sensing, as it presents specific spatial, spectral and temporal characteristics, is an essential technological alternative in monitoring areas affected by fire on the Earth's surface. This work aimed to analyze, in a spatial, spectral and temporal scope, the behavior of a fire in a Caatinga environment from the multivariate statistical analysis of Landsat-8 Images data, Enhanced Vegetation Index and Analysis by theMajor Components. The quantification of characteristics of vegetation derived from the spectral index provides a better assessment of the physical condition of the earth's surface under the effects of fire. Remote sensing techniques and multivariate statistics were used to assess the spectral behavior of wildfires in the Caatinga biome. The results of the Kolmogorov-Smirnov Normality Test showed a significance level of 5%. The integration of the statistical methods of Simple Linear Regression and Analysis by the Principal Components enabled important diagnoses in the estimates and/or relationships between the random variables. The multivariate technique allowed 94% of the data variation to be assessed. The maps resulting from the tested methodology represent an important improvement in mapping the distribution of vegetation. This study generates indications for future scientific research related to the management of space concerning to vulnerability and recovery of vegetation landscapes from the semi-arid climate under fire situations generated by burnings.O fogo é um fator importante na perturbação e perda de florestas secas tropicais globais. Os incêndios florestais exercem um papel ecológico relevante, pois afetam a biodiversidade local, as propriedades do solo e o suprimento de água. O bioma Caatinga apresenta um alto nível de degradação de atividades antrópicas e naturais, sendo extremamente afetado por incêndios originados predominantemente por atividades humanas. O sensoriamento remoto orbital, por apresentar características espaciais, espectrais e temporais específicas, é uma alternativa tecnológica imprescindível no monitoramento de áreas afetadas pelo fogo na superfície terrestre. Este trabalho teve como objetivo analisar, no âmbito espacial, espectral e temporal, o comportamento de um incêndio em ambiente de Caatinga a partir de Imagens Landsat-8, Índice de Vegetação Realçado e Análise por Componentes Principais. A quantificação de características da vegetação derivada do índice espectral fornece uma melhor avaliação da condição física da superfície terrestre sob efeitos do fogo. Técnicas de sensoriamento remoto e estatística multivariada foram utilizadas para avaliar comportamento espectral da vegetação nativa exposta a eventos de incêndio do bioma Caatinga. Os resultados do Teste de Normalidade Kolmogorov-Smirnov apresentaram um nível de significância de 5 %. A integração dos métodos estatísticos de Regressão Linear Simples e Análise por Componentes Principais possibilitaram diagnósticos importantes nas estimativas e/ou relacionamentos entre as variáveis aleatórias. A técnica multivariada permitiu avaliar 94% da variação de dados. Os mapas resultantes da metodologia testada representam um aprimoramento importante no mapeamento da distribuição da vegetação. Este estudo gera indicativos para futuras pesquisas científicas vinculadas ao gerenciamento do espaço relacionado à vulnerabilidade e recuperação de paisagens de vegetação do clima semiárido sob situações de fogo geradas por incêndios.Universidade Federal de Santa Maria2021-03-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdftext/htmlhttps://periodicos.ufsm.br/cienciaflorestal/article/view/4381810.5902/1980509843818Ciência Florestal; Vol. 31 No. 1 (2021); 417-439Ciência Florestal; v. 31 n. 1 (2021); 417-4391980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/43818/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/43818/htmlCopyright (c) 2021 Ciência Florestalinfo:eu-repo/semantics/openAccessSilva Junior, Juarez AntonioPacheco, Admilson da Penha2021-05-20T04:00:55Zoai:ojs.pkp.sfu.ca:article/43818Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2021-05-20T04:00:55Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Fire analysis in the Caatinga environment from Landsat-8 images, enhanced vegetation index and analysis by the main components Avaliação de incêndio em ambiente de Caatinga a partir de imagens Landsat-8, índice de vegetação realçado e análise por componentes principais |
title |
Fire analysis in the Caatinga environment from Landsat-8 images, enhanced vegetation index and analysis by the main components |
spellingShingle |
Fire analysis in the Caatinga environment from Landsat-8 images, enhanced vegetation index and analysis by the main components Silva Junior, Juarez Antonio Vegetation Cover Fires Remote Sensing and Statistics Cobertura Vegetal Incêndios Sensoriamento Remoto e Estatística |
title_short |
Fire analysis in the Caatinga environment from Landsat-8 images, enhanced vegetation index and analysis by the main components |
title_full |
Fire analysis in the Caatinga environment from Landsat-8 images, enhanced vegetation index and analysis by the main components |
title_fullStr |
Fire analysis in the Caatinga environment from Landsat-8 images, enhanced vegetation index and analysis by the main components |
title_full_unstemmed |
Fire analysis in the Caatinga environment from Landsat-8 images, enhanced vegetation index and analysis by the main components |
title_sort |
Fire analysis in the Caatinga environment from Landsat-8 images, enhanced vegetation index and analysis by the main components |
author |
Silva Junior, Juarez Antonio |
author_facet |
Silva Junior, Juarez Antonio Pacheco, Admilson da Penha |
author_role |
author |
author2 |
Pacheco, Admilson da Penha |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Silva Junior, Juarez Antonio Pacheco, Admilson da Penha |
dc.subject.por.fl_str_mv |
Vegetation Cover Fires Remote Sensing and Statistics Cobertura Vegetal Incêndios Sensoriamento Remoto e Estatística |
topic |
Vegetation Cover Fires Remote Sensing and Statistics Cobertura Vegetal Incêndios Sensoriamento Remoto e Estatística |
description |
Fires generate negative environmental and socioeconomic impacts that directly and indirectly influence the Earth's regional and global climate changes. Forest fires and fires play a relevant ecological role as they affect the local biodiversity, soil properties and water supply. The Caatinga biome has a high level of degradation of human and natural activities, being extremely affected by fires that burn predominantly due to human activities. Remote orbital sensing, as it presents specific spatial, spectral and temporal characteristics, is an essential technological alternative in monitoring areas affected by fire on the Earth's surface. This work aimed to analyze, in a spatial, spectral and temporal scope, the behavior of a fire in a Caatinga environment from the multivariate statistical analysis of Landsat-8 Images data, Enhanced Vegetation Index and Analysis by theMajor Components. The quantification of characteristics of vegetation derived from the spectral index provides a better assessment of the physical condition of the earth's surface under the effects of fire. Remote sensing techniques and multivariate statistics were used to assess the spectral behavior of wildfires in the Caatinga biome. The results of the Kolmogorov-Smirnov Normality Test showed a significance level of 5%. The integration of the statistical methods of Simple Linear Regression and Analysis by the Principal Components enabled important diagnoses in the estimates and/or relationships between the random variables. The multivariate technique allowed 94% of the data variation to be assessed. The maps resulting from the tested methodology represent an important improvement in mapping the distribution of vegetation. This study generates indications for future scientific research related to the management of space concerning to vulnerability and recovery of vegetation landscapes from the semi-arid climate under fire situations generated by burnings. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-03-15 |
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://periodicos.ufsm.br/cienciaflorestal/article/view/43818 10.5902/1980509843818 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/43818 |
identifier_str_mv |
10.5902/1980509843818 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/43818/pdf https://periodicos.ufsm.br/cienciaflorestal/article/view/43818/html |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Ciência Florestal info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Ciência Florestal |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf text/html |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Florestal; Vol. 31 No. 1 (2021); 417-439 Ciência Florestal; v. 31 n. 1 (2021); 417-439 1980-5098 0103-9954 reponame:Ciência Florestal (Online) instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Florestal (Online) |
collection |
Ciência Florestal (Online) |
repository.name.fl_str_mv |
Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br |
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1799944135352778752 |