# GLAD-S2 (Sentinel-2 Deforestation Alerts)
*data products*

## Specifications
- **level**: L3
- **distributor**: wri
- **gsd m**: {"native":10}
- **access endpoint**: https://glad.earthengine.app/view/s2-forest-alerts
- **access model**: open
- **licence**: CC BY 4.0
- **primary data portal url**: https://www.globalforestwatch.org
- **use cases**: ["Near-real-time deforestation alert for humid tropical forests","Selective logging and smallholder clearing detection (below GLAD-L's 30 m minimum)","Supply chain deforestation monitoring and EUDR compliance","Forest law enforcement rapid response"]
- **practical limitations**: ["Geographic coverage confirmed for Amazon basin primary forest from tier 1 source; pan-tropical or global scope stated by GFW marketing but unconfirmed from tier 1 as of 2026-05-18","Cloud cover extends detection latency; Sentinel-2 5-day revisit is nominal but cloud-contaminated scenes skip pixels","Output is event-based; not suitable for area estimation","No dedicated peer-reviewed validation paper identified; GLAD-S2 extends GLAD-L methods (Hansen et al. 2016)"]
- **known artefacts**: ["Possible alerts may arise from single-image spectral artefacts; confirmed tier requires repeated observations","Primary forest mask excludes secondary regrowth; disturbances outside mask are not captured"]
- **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-S2 (Sentinel-2 Deforestation Alerts)
- eudr (regulations) --[satisfied-by]--> GLAD-S2 (Sentinel-2 Deforestation Alerts)

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Source: https://eo-atlas.org/data_products/glad-s2-alerts
Maintainer: SpectraWorks B.V. (CC-BY 4.0)