Long-term landsat-based monthly burned area dataset for the brazilian biomes using deep learning

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dc.creatorAlencar, Ane Auxiliadora Costa
dc.creatorArruda, Vera Laisa da Silva
dc.creatorSilva, Wallace Vieira da
dc.creatorCosta, Dhemerson Estevão Conciani da
dc.creatorCosta, Diêgo Pereira
dc.creatorCrusco, Natalia
dc.creatorDuverger, Soltan Galano
dc.creatorFerreira, Nilson Clementino
dc.creatorRocha, Washington de Jesus Sant'Anna da Franca
dc.creatorHasenack, Heinrich
dc.creatorMartenexen, Luiz Felipe Morais
dc.creatorPiontekowski, Valderli Jorge
dc.creatorRibeiro, Noely Vicente
dc.creatorRosa, Eduardo Reis
dc.creatorRosa, Marcos Reis
dc.creatorSantos, Sarah Moura Batista dos
dc.creatorShimbo, Julia Z
dc.creatorMartin, Eduardo Vélez
dc.date.accessioned2024-08-16T19:21:20Z
dc.date.available2024-08-16T19:21:20Z
dc.date.issued2022
dc.description.abstractFire is a significant agent of landscape transformation on Earth, and a dynamic and ephemeral process that is challenging to map. Difficulties include the seasonality of native vegetation in areas affected by fire, the high levels of spectral heterogeneity due to the spatial and temporal variability of the burned areas, distinct persistence of the fire signal, increase in cloud and smoke cover surrounding burned areas, and difficulty in detecting understory fire signals. To produce a large-scale time-series of burned area, a robust number of observations and a more efficient sampling strategy is needed. In order to overcome these challenges, we used a novel strategy based on a machine-learning algorithm to map monthly burned areas from 1985 to 2020 using Landsat-based annual quality mosaics retrieved from minimum NBR values. The annual mosaics integrated year-round observations of burned and unburned spectral data (i.e., RED, NIR, SWIR-1, and SWIR-2), and used them to train a Deep Neural Network model, which resulted in annual maps of areas burned by land use type for all six Brazilian biomes. The annual dataset was used to retrieve the frequency of the burned area, while the date on which the minimum NBR was captured in a year, was used to reconstruct 36 years of monthly burned area. Results of this effort indicated that 19.6% (1.6 million km2) of the Brazilian territory was burned from 1985 to 2020, with 61% of this area burned at least once. Most of the burning (83%) occurred between July and October. The Amazon and Cerrado, together, accounted for 85% of the area burned at least once in Brazil. Native vegetation was the land cover most affected by fire, representing 65% of the burned area, while the remaining 35% burned in areas dominated by anthropogenic land uses, mainly pasture. This novel dataset is crucial for understanding the spatial and long-term temporal dynamics of fire regimes that are fundamental for designing appropriate public policies for reducing and controlling fires in Brazil.
dc.identifier.citationALENCAR, Ane A. C et al. Long-term landsat-based monthly burned area dataset for the brazilian biomes using deep learning. Remote Sensing, Basileia, v. 14, n. 11, e2510, 2022. DOI: 10.3390/rs14112510. Disponível em: https://www.mdpi.com/2072-4292/14/11/2510. Acesso em: 13 ago. 2024.
dc.identifier.doi10.3390/rs14112510
dc.identifier.issne- 2072-4292
dc.identifier.urihttp://repositorio.bc.ufg.br//handle/ri/25324
dc.language.isoeng
dc.publisher.countrySuica
dc.publisher.departmentInstituto de Estudos Socioambientais - IESA (RMG)
dc.rightsAcesso Aberto
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectFire
dc.subjectBurned area
dc.subjectMachine learning
dc.subjectBrazil
dc.subjectLandsat
dc.subjectFire regime
dc.subjectAmazon
dc.titleLong-term landsat-based monthly burned area dataset for the brazilian biomes using deep learning
dc.typeArtigo

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