Field notes & methodology
Notes from the data stream
Spectral change detection methodology, regulatory analysis, and field observations from Rohan Pillai and the Biodivex team. Written for practitioners, not press releases.
Detection Method
How Sentinel-2 NDVI detects deforestation within 48 hours: the spectral mechanics
A detailed walkthrough of the NIR-SWIR band differencing approach: why NIR drops and SWIR rises at a clearing event, how the 6-week rolling baseline is constructed, and what the confidence score calculation looks like in practice.
ESG & Compliance
What ESG teams actually need from satellite land-use monitoring
2025-10-29
Remote Sensing
False-color satellite imagery for conservation: a practical interpreter's guide
2025-11-19
Regulation
Oregon's OCPA and conservation data: what the law covers, what it doesn't
2025-12-10
Carbon Science
Carbon stock estimation in tropical forests: LiDAR vs Sentinel — when to use which
2025-12-31
Platform Design
Alert fatigue in deforestation monitoring: why precision matters more than recall
2026-01-21
Field Analysis
Amazon–Cerrado transition zone: deforestation patterns in early 2025
2026-02-11
ESG & Compliance
Scope 3 deforestation-linked emissions: what a credible disclosure actually requires
2026-02-25
Remote Sensing
Wetland change detection: why SAR-optical fusion outperforms either sensor alone
2026-03-18
Change Detection
Fire scar recovery monitoring with NDVI time series: what post-fire regrowth looks like spectrally
2026-04-08
Biodiversity Science
Satellite-derived structural complexity as a biodiversity proxy: current limits and practical uses
2026-04-29
EUDR