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FLOGA-annotations

Polygon files for the annotation in the FLOGA dataset.

Version 1

Each polygon file contains the following fields:

  • ID: unique identifier for each wildfire event
  • Start date: The ignition date of the wildfire
  • End date: The date the wildfire ended
  • SEN_2A_s: The pre-fire Sentinel-2 image used
  • SEN_2A_e: The post-fire Sentinel-2 image used
  • MOD09GA_s: The pre-fire MODIS image used
  • MOD09GA_e: The post-fire MODIS image used

Correspondence with dataset files

Each file in FLOGA v1 is identified by the following prefix: <row id> where row id is the index of the shapefile row for this particular year.

Version 2

The annotations remain the same as in v1, but new imagery has been included adopting the re-processed Sentinel-2 products. In some cases, images from different dates have been used compared to v1 due to more accurate cloud masking, thus rejecting cloudy images that were previously deemed cloud-free and vice versa.

We have also added candidate Sentinel-1 imagery in case the user is interested to produce a dataset with a SAR modality. We opted to include 2 pre- and 2 post-fire Sentinel-1 products, useful for coherence map production. FLOGA is currently being extended with such data aiming to tackle cloud/smoke coverage and potentially real-time wildfire progression monitoring.

Each polygon file contains the following fields:

  • ID: unique identifier for each wildfire event
  • Year: The year of the event
  • Start date: The ignition date of the wildfire
  • End date: The date the wildfire ended
  • S2_s: The pre-fire Sentinel-2 image used
  • S2_e: The post-fire Sentinel-2 image used
  • MOD_s: The pre-fire MODIS image used
  • MOD_e: The post-fire MODIS image used
  • S1_s1: The first pre-fire Sentinel-1 image
  • S1_s2: The second pre-fire Sentinel-1 image
  • S1_e1: The first post-fire Sentinel-1 image
  • S1_e2: The second post-fire Sentinel-1 image
  • S1_orbit_d: The orbit direction of the Sentinel-1 image (i.e. "asc" or "desc")

Correspondence with dataset files

Each file in FLOGA v2 is identified by the following prefix: <ID>_<row id> where ID is the "ID" field of the shapefile and row id is the index of the shapefile row for this particular year.

Citation

If you would like to use our work, please cite our paper:

@ARTICLE{10479972,
  author={Sdraka, Maria and Dimakos, Alkinoos and Malounis, Alexandros and Ntasiou, Zisoula and Karantzalos, Konstantinos and Michail, Dimitrios and Papoutsis, Ioannis},
  journal={IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing}, 
  title={FLOGA: A Machine-Learning-Ready Dataset, a Benchmark, and a Novel Deep Learning Model for Burnt Area Mapping With Sentinel-2}, 
  year={2024},
  volume={17},
  number={},
  pages={7801-7824},
  doi={10.1109/JSTARS.2024.3381737}
}

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