Hot spots and anomalies of CO2 over eastern Amazonia, Brazil: A time series from 2015 to 2018

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorCentro-
Autor(es): dc.contributorUniversidade Estadual de Maringá (UEM)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorMato Grosso State University (UNEMAT)-
Autor(es): dc.creatorSantos, Gustavo André de Araújo-
Autor(es): dc.creatorMorais Filho, Luiz Fernando Favacho-
Autor(es): dc.creatorMeneses, Kamila Cunha de-
Autor(es): dc.creatorSilva Junior, Carlos Antonio da-
Autor(es): dc.creatorRolim, Glauco de Souza-
Autor(es): dc.creatorLa Scala, Newton-
Data de aceite: dc.date.accessioned2025-08-21T18:57:39Z-
Data de disponibilização: dc.date.available2025-08-21T18:57:39Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.envres.2022.114379-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/247670-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/247670-
Descrição: dc.descriptionThe easternmost Amazon, located in the Maranhão State, in Brazil, has suffered massive deforestation in recent years, which has devastated almost 80% of the original vegetation. We aim to characterize hot spots, hot moments, atmospheric carbon dioxide anomalies (Xco2, ppm), and their interactions with climate and vegetation indices in eastern Amazon, using data from NASA's Orbiting Carbon Observatory-2 (OCO-2). The study covered the period from January 2015 to December 2018. The data were subjected to regression, correlation, and temporal analysis, identifying the spatial distribution of hot/cold moments and hot/cold spots. In addition, anomalies were calculated to identify potential CO2 sources and sinks. Temporal changes indicate atmospheric Xco2 in the range from 362.2 to 403.4 ppm. Higher Xco2 values (hot moments) were concentrated between May and September, with some peaks in December. The lowest values (cold moments) were concentrated from November to April. SIF 771 W m−2 sr−1 μm−1 explained the temporal changes of Xco2 in 58% (R2 adj = 0.58; p < 0.001) and precipitation in 27% (R2 adj = 0.27; p ≤ 0.001). Spatial hot spots with 90% confidence were more representative in 2016. The maximum and minimum Xco2 (ppm) anomalies were 6.19 ppm (source) and −6.29 ppm (sink), respectively. We conclude that the hot moments of Xco2 in the eastern Amazon rainforest are concentrated in the dry season of the year. Xco2 spatial hot spots and anomalies are concentrated in the southern region and close to protected areas of the Amazon rainforest.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa e ao Desenvolvimento Científico e Tecnológico do Maranhão-
Descrição: dc.descriptionNational Aeronautics and Space Administration-
Descrição: dc.descriptionUniversidade Estadual Paulista-
Descrição: dc.descriptionCampus Avançado Porto Franco Instituto Federal de Educação Ciência e Tecnologia Do Maranhão – IFMA Centro, Rua Custódio Barbosa, Nº 09, Porto Franco-
Descrição: dc.descriptionCenter of Agricultural Natural and Literary Sciences State University of the Tocantina Region of Maranhão (UEMASUL), Av. Brejo Do Pinto, S/N – Brejo Do Pinto, Estreito-
Descrição: dc.descriptionDepartment of Engineering and Exact Sciences São Paulo State University (FCAV–UNESP) Via de Acesso Prof., Paulo Donato Castellane S/n, Jaboticabal-
Descrição: dc.descriptionDepartment of Geography Mato Grosso State University (UNEMAT), Mato Grosso-
Descrição: dc.descriptionDepartment of Engineering and Exact Sciences São Paulo State University (FCAV–UNESP) Via de Acesso Prof., Paulo Donato Castellane S/n, Jaboticabal-
Descrição: dc.descriptionCAPES: 001-
Descrição: dc.descriptionUniversidade Estadual Paulista: OCO-2-
Idioma: dc.languageen-
Relação: dc.relationEnvironmental Research-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCarbon cycle-
Palavras-chave: dc.subjectClimate–carbon feedbacks-
Palavras-chave: dc.subjectGreenhouse gases observing satellite-
Palavras-chave: dc.subjectOCO-2-
Palavras-chave: dc.subjectTropical forest-
Título: dc.titleHot spots and anomalies of CO2 over eastern Amazonia, Brazil: A time series from 2015 to 2018-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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