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New improvement in the LANDFIRE 2023 Update: 4 seasons of satellite imagery!

Beginning in the LANDFIRE 2023 Update (LF 2023), disturbance mapping utilizes 4 seasonal composites, doubling our use of satellite imagery.​

  • In the past, only 2 composites were used in disturbance mapping.​
  • New and improved composites are made possible by recent advancements in percentile-based image compositing and additional observations in Harmonized Landsat-Sentinel (HLS) data.​​​

two satellite image layers with arrow pointing to the fire scare

In this example at Elk Mountain in Black Hills, SD you can see how using more satellite imagery makes a difference! This mid-October (2022) fire would not have been captured in LANDFIRE disturbance products as satellite-detected change if not for the use of the 4 seasonal composites.​

  • A fire scar that is visible in the 2023 winter and spring composite, was not visible and identifiable later in the year in the 2023 summer composite due to vegetation greening.​


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