MGBAS2 reference data:reference fire perimeters obtained from Sentinel-2 imagery over Madagascar for the years 2019 and 2021
The MGBAS2 reference data was derived from Sentinel-2 images over a set of 6 tiles (sampling units)sampled following a design customized for the Sentinel tiling grid system and to represent low and high burned area occurrence strata in Madagascar. Over each tile Sentinel-2 time series were defined b...
| Autores: | , , |
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| Tipo de recurso: | conjunto de datos |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Consorcio Madroño |
| Repositorio: | e-cienciaDatos, Repositorio de Datos del Consorcio Madroño |
| OAI Identifier: | doi:10.21950/YYZNNN |
| Acceso en línea: | https://doi.org/10.21950/YYZNNN |
| Access Level: | acceso abierto |
| Palabra clave: | Earth and Environmental Sciences Burned area Reference perimeters Long units Accuracy assessment Madagascar |
| Sumario: | The MGBAS2 reference data was derived from Sentinel-2 images over a set of 6 tiles (sampling units)sampled following a design customized for the Sentinel tiling grid system and to represent low and high burned area occurrence strata in Madagascar. Over each tile Sentinel-2 time series were defined based on a set of conditions for minimizing cloud cover and to guarantee series length and a minimum time lag between image pairs. Sentinel-2 image pairs were classified with a Random Forest (RF) algorithm to provide burned perimeters of depicting areas that burned between the two dates that were combined in a synthetic burned area reference dataset. This dataset represent for each unit burned and unburned polygons and masked areas. A detailed description of the dataset can be found in Fernández-García et al.(2023) ("Madagascar’s burned area from Sentinel-2 imagery (2016–2022): four times higher than from lower resolution sensors", in preparation). |
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