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- W4214895244 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> Sugarcane is the most important source of sugar, and its cultivation area has undergone rapid expansion, replacing other crops, pastures, and forests. Brazil is the world's largest sugarcane producer and contributed to approximately 38.6â% of the world's total production in 2019. Sugarcane in Brazil can be harvested from April to December in the south-central area and from September to April in the northeast area. The flexible phenology and harvest conditions of sugarcane in Brazil make it difficult to identify the harvest area at state to country scales. In this study, we developed a phenology-based method to identify the harvest area of sugarcane in Brazil by incorporating the multiple phenology conditions into a time-weighted dynamic time warping method (TWDTW). Then, we produced annual 30âm spatial resolution sugarcane harvest maps (2016â2019) for 14 states in Brazil (over 98â% of the harvest area) based on the proposed method using Landsat-7, Landsat-8, and Sentinel-2 optical data. The proposed method performed well in identifying sugarcane harvest area with limited training sample data. Validations for the 2018 harvest year displayed high accuracy, with the user's, producer's, and overall accuracies of 94.35â%, 87.04â%, and 91.47â% in Brazil, respectively. In addition, the identified harvest area of sugarcane exhibited good correlations with the agricultural statistical data provided by the Brazilian Institute of Geography and Statistics (IBGE) at the municipality, microregion, and mesoregion levels. The 30âm Brazil sugarcane harvest maps can be obtained at <a href=https://doi.org/10.6084/m9.figshare.14213909>https://doi.org/10.6084/m9.figshare.14213909</a> (Zheng et al., 2021)." @default.
- W4214895244 created "2022-03-05" @default.
- W4214895244 creator A5005732792 @default.
- W4214895244 date "2022-03-02" @default.
- W4214895244 modified "2023-09-30" @default.
- W4214895244 title "Comment on essd-2021-88" @default.
- W4214895244 doi "https://doi.org/10.5194/essd-2021-88-ac1" @default.
- W4214895244 hasPublicationYear "2022" @default.
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