A Rua Wildfire Burn Severity Analysis (Sentinel-2 dNBR)

Phase 1 – Initial Results (LinkedIn post – December 2025)

• severity_non_qa.ipynb
• Results: non_qa/
• Note: This version shows inflated "High" severity (~40%) due to border artifacts (NIR/SWIR2 = 0 outside AOI not masked → false low NBR values).
  This was shared on LinkedIn as a "non-curated" example to highlight QA importance.

Corrected Version – With QA Mask

• severity_with_qa.ipynb
• Results: with_qa/
• Key fix: Valid pixel mask (nir > 0) & (swir2 > 0) before NBR calculation → removes edge effects.
  → High severity significantly reduced, more realistic distribution aligned with Copernicus EMS reports.

Comparison Notebook

• qa_impact_comparison.ipynb
  Side-by-side stats, area tables (ha per class), and visual difference maps.

See LinkedIn post for context: [https://www.linkedin.com/posts/augusto-salonio-442621132_wildfire-burnseverity-dnbr-activity-7421506656993210368-TSqu?utm_source=share&utm_medium=member_desktop&rcm=ACoAACB70zIBpz1rXQlFlhXLOTC7w4-pCdCXzw0]