Spatiotemporal analysis of atmospheric XCH4 as related to fires in the Amazon biome during 2015–2020
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.rsase.2023.100967 http://hdl.handle.net/11449/247124 |
Resumo: | Studies that focus on the concentration of methane and its relationship with fires in the Amazon have become relevant in the current scenario, especially due to the increasing environmental degradation associated with climate change. Therefore, the main objective of the study was to investigate the spatial–temporal variability in the observations of XCH4 in the time series of 2015 a 2020 and understand the correlations between XCH4 and the fire foci number, CO2 anomalies and biophysical variables (temperature and soil moisture) under the Amazon biome. For number of active fires foci (Fire Foci) and Land Surface Temperature (LST) were obtained through the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor, and the atmospheric concentrations of the averaged column of methane (XCH4) and carbon dioxide (XCO2) were obtained by the Greenhouse gases Observing SATellite (GOSAT) satellites and Orbiting Carbon Observatory-2 (OCO-2), respectively. The Soil Moisture (SMAP) was obtained through satellite Soil Moisture Active Passive (SMAP). The analysis was carried out in the dry and wet seasons, and the XCH4 presented an annual mean and standard error of 1794 ± 5.3 ppb for the rainy season, while for the dry period, the XCH4 was 1789 ± 5.6 ppb. For the spatial distribution of XCH4, a significant correlation (r = 0.53 and p < 0.05) was observed between XCH4 and Anomaly XCO2 in the dry season, possibly justified by the increase in fire foci. Additionally, in the dry period, XCH4 was significantly correlated with SMAP (r = 0.97, p < 0.01), validating the hypothesis of a strong relationship between the variables. The temporal variability of XCH4 was significant for SMAP (r = 0.65 and p < 0.01), similar to the significance of the LST variable (r = 0.66 and p < 0.01). Thus, the temporal distribution of XCH4 was positively related to both soil moisture and land surface temperature. Therefore, considering more frequent droughts and the predominance of fires in the region, as well as the increase in global average temperature, there will be an increase in greenhouse gas (GHG) emissions, especially methane, further impacting the Amazonian ecosystem, which is already vulnerable to climate change. |
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Spatiotemporal analysis of atmospheric XCH4 as related to fires in the Amazon biome during 2015–2020Arc of deforestationClimate changesFire fociSeasonalitySoil moistureXCO2Studies that focus on the concentration of methane and its relationship with fires in the Amazon have become relevant in the current scenario, especially due to the increasing environmental degradation associated with climate change. Therefore, the main objective of the study was to investigate the spatial–temporal variability in the observations of XCH4 in the time series of 2015 a 2020 and understand the correlations between XCH4 and the fire foci number, CO2 anomalies and biophysical variables (temperature and soil moisture) under the Amazon biome. For number of active fires foci (Fire Foci) and Land Surface Temperature (LST) were obtained through the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor, and the atmospheric concentrations of the averaged column of methane (XCH4) and carbon dioxide (XCO2) were obtained by the Greenhouse gases Observing SATellite (GOSAT) satellites and Orbiting Carbon Observatory-2 (OCO-2), respectively. The Soil Moisture (SMAP) was obtained through satellite Soil Moisture Active Passive (SMAP). The analysis was carried out in the dry and wet seasons, and the XCH4 presented an annual mean and standard error of 1794 ± 5.3 ppb for the rainy season, while for the dry period, the XCH4 was 1789 ± 5.6 ppb. For the spatial distribution of XCH4, a significant correlation (r = 0.53 and p < 0.05) was observed between XCH4 and Anomaly XCO2 in the dry season, possibly justified by the increase in fire foci. Additionally, in the dry period, XCH4 was significantly correlated with SMAP (r = 0.97, p < 0.01), validating the hypothesis of a strong relationship between the variables. The temporal variability of XCH4 was significant for SMAP (r = 0.65 and p < 0.01), similar to the significance of the LST variable (r = 0.66 and p < 0.01). Thus, the temporal distribution of XCH4 was positively related to both soil moisture and land surface temperature. Therefore, considering more frequent droughts and the predominance of fires in the region, as well as the increase in global average temperature, there will be an increase in greenhouse gas (GHG) emissions, especially methane, further impacting the Amazonian ecosystem, which is already vulnerable to climate change.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)São Paulo State University (Unesp), JaboticabalUniversity of the State of Mato GrossoSão Paulo State University (Unesp), JaboticabalUniversidade Estadual Paulista (UNESP)University of the State of Mato Grossode Souza Maria, Luciano [UNESP]Rossi, Fernando Saragosa [UNESP]Costa, Luis Miguel da [UNESP]Campos, Marcelo Odorizzi [UNESP]Blas, Juan Carlos Guerra [UNESP]Panosso, Alan Rodrigo [UNESP]Silva, Joao Lucas DellaSilva Junior, Carlos Antonio daLa Scala Jr, Newton [UNESP]2023-07-29T13:06:59Z2023-07-29T13:06:59Z2023-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.rsase.2023.100967Remote Sensing Applications: Society and Environment, v. 30.2352-9385http://hdl.handle.net/11449/24712410.1016/j.rsase.2023.1009672-s2.0-85151823621Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRemote Sensing Applications: Society and Environmentinfo:eu-repo/semantics/openAccess2023-07-29T13:06:59Zoai:repositorio.unesp.br:11449/247124Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T13:06:59Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Spatiotemporal analysis of atmospheric XCH4 as related to fires in the Amazon biome during 2015–2020 |
title |
Spatiotemporal analysis of atmospheric XCH4 as related to fires in the Amazon biome during 2015–2020 |
spellingShingle |
Spatiotemporal analysis of atmospheric XCH4 as related to fires in the Amazon biome during 2015–2020 de Souza Maria, Luciano [UNESP] Arc of deforestation Climate changes Fire foci Seasonality Soil moisture XCO2 |
title_short |
Spatiotemporal analysis of atmospheric XCH4 as related to fires in the Amazon biome during 2015–2020 |
title_full |
Spatiotemporal analysis of atmospheric XCH4 as related to fires in the Amazon biome during 2015–2020 |
title_fullStr |
Spatiotemporal analysis of atmospheric XCH4 as related to fires in the Amazon biome during 2015–2020 |
title_full_unstemmed |
Spatiotemporal analysis of atmospheric XCH4 as related to fires in the Amazon biome during 2015–2020 |
title_sort |
Spatiotemporal analysis of atmospheric XCH4 as related to fires in the Amazon biome during 2015–2020 |
author |
de Souza Maria, Luciano [UNESP] |
author_facet |
de Souza Maria, Luciano [UNESP] Rossi, Fernando Saragosa [UNESP] Costa, Luis Miguel da [UNESP] Campos, Marcelo Odorizzi [UNESP] Blas, Juan Carlos Guerra [UNESP] Panosso, Alan Rodrigo [UNESP] Silva, Joao Lucas Della Silva Junior, Carlos Antonio da La Scala Jr, Newton [UNESP] |
author_role |
author |
author2 |
Rossi, Fernando Saragosa [UNESP] Costa, Luis Miguel da [UNESP] Campos, Marcelo Odorizzi [UNESP] Blas, Juan Carlos Guerra [UNESP] Panosso, Alan Rodrigo [UNESP] Silva, Joao Lucas Della Silva Junior, Carlos Antonio da La Scala Jr, Newton [UNESP] |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) University of the State of Mato Grosso |
dc.contributor.author.fl_str_mv |
de Souza Maria, Luciano [UNESP] Rossi, Fernando Saragosa [UNESP] Costa, Luis Miguel da [UNESP] Campos, Marcelo Odorizzi [UNESP] Blas, Juan Carlos Guerra [UNESP] Panosso, Alan Rodrigo [UNESP] Silva, Joao Lucas Della Silva Junior, Carlos Antonio da La Scala Jr, Newton [UNESP] |
dc.subject.por.fl_str_mv |
Arc of deforestation Climate changes Fire foci Seasonality Soil moisture XCO2 |
topic |
Arc of deforestation Climate changes Fire foci Seasonality Soil moisture XCO2 |
description |
Studies that focus on the concentration of methane and its relationship with fires in the Amazon have become relevant in the current scenario, especially due to the increasing environmental degradation associated with climate change. Therefore, the main objective of the study was to investigate the spatial–temporal variability in the observations of XCH4 in the time series of 2015 a 2020 and understand the correlations between XCH4 and the fire foci number, CO2 anomalies and biophysical variables (temperature and soil moisture) under the Amazon biome. For number of active fires foci (Fire Foci) and Land Surface Temperature (LST) were obtained through the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor, and the atmospheric concentrations of the averaged column of methane (XCH4) and carbon dioxide (XCO2) were obtained by the Greenhouse gases Observing SATellite (GOSAT) satellites and Orbiting Carbon Observatory-2 (OCO-2), respectively. The Soil Moisture (SMAP) was obtained through satellite Soil Moisture Active Passive (SMAP). The analysis was carried out in the dry and wet seasons, and the XCH4 presented an annual mean and standard error of 1794 ± 5.3 ppb for the rainy season, while for the dry period, the XCH4 was 1789 ± 5.6 ppb. For the spatial distribution of XCH4, a significant correlation (r = 0.53 and p < 0.05) was observed between XCH4 and Anomaly XCO2 in the dry season, possibly justified by the increase in fire foci. Additionally, in the dry period, XCH4 was significantly correlated with SMAP (r = 0.97, p < 0.01), validating the hypothesis of a strong relationship between the variables. The temporal variability of XCH4 was significant for SMAP (r = 0.65 and p < 0.01), similar to the significance of the LST variable (r = 0.66 and p < 0.01). Thus, the temporal distribution of XCH4 was positively related to both soil moisture and land surface temperature. Therefore, considering more frequent droughts and the predominance of fires in the region, as well as the increase in global average temperature, there will be an increase in greenhouse gas (GHG) emissions, especially methane, further impacting the Amazonian ecosystem, which is already vulnerable to climate change. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T13:06:59Z 2023-07-29T13:06:59Z 2023-04-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.rsase.2023.100967 Remote Sensing Applications: Society and Environment, v. 30. 2352-9385 http://hdl.handle.net/11449/247124 10.1016/j.rsase.2023.100967 2-s2.0-85151823621 |
url |
http://dx.doi.org/10.1016/j.rsase.2023.100967 http://hdl.handle.net/11449/247124 |
identifier_str_mv |
Remote Sensing Applications: Society and Environment, v. 30. 2352-9385 10.1016/j.rsase.2023.100967 2-s2.0-85151823621 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Remote Sensing Applications: Society and Environment |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803046044805627904 |