# GLAD-L (Landsat-based Deforestation Alerts)
*data products*

## Specifications
- **level**: L3
- **distributor**: wri
- **gsd m**: {"native":30}
- **access model**: open
- **licence**: CC BY 4.0
- **primary data portal url**: https://www.globalforestwatch.org
- **use cases**: ["Near-real-time deforestation alert for tropical forests","Forest law enforcement support and rapid response forest management","Deforestation hotspot identification and supply chain risk screening"]
- **practical limitations**: ["Not suitable for area estimates; event-based use only","Detection latency extended by persistent cloud cover in humid tropics","Geographic coverage confirmed pantropical 30 degrees N to 30 degrees S; global extension claimed by GFW as of 2026 but not confirmed from tier 1 sources accessed","Higher omission rate in secondary forests"]
- **known artefacts**: ["Possible alerts may arise from single-image artefacts; the 2-of-4-observation confirmation tier mitigates but does not eliminate"]
- **last verified date**: "2026-05-18T00:00:00.000Z"
- **verified by**: sw
- **claim status**: unclaimed
- **deployment context**: orbital

## Compositional position
- defor (topics) --[topic_capabilities]--> GLAD-L (Landsat-based Deforestation Alerts)

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Source: https://eo-atlas.org/data_products/glad-l-alerts
Maintainer: SpectraWorks B.V. (CC-BY 4.0)