# OPERA DIST-ALERT-HLS (Version 1)
*data products*

## Specifications
- **level**: L3
- **distributor**: nasa-jpl
- **gsd m**: {"native":30}
- **access endpoint**: https://doi.org/10.5067/SNWG/OPERA_L3_DIST-ALERT-HLS_V1.001
- **access model**: open
- **licence**: NASA Earthdata Use Policy
- **primary data portal url**: https://search.earthdata.nasa.gov/search/granules?p=C2746980408-LPCLOUD
- **use cases**: ["Near-real-time global vegetation disturbance alerting (all biomes, not forest-only)","Deforestation early warning beyond tropical forest (savannas, shrublands, wetlands)","Supply chain commodity risk screening across all vegetation-linked land cover","Government forest law enforcement and regulatory compliance monitoring","EUDR due diligence baseline for non-forest vegetation-linked commodities"]
- **practical limitations**: ["Detection latency extended by cloud cover in humid tropics (optical-only HLS input)","30 m resolution; sub-pixel disturbances (selective logging below 30 m patch scale) may be missed","ATBD PDF unreadable in this research pass; confidence-tier thresholds unverified at tier 1","Peer-reviewed validation paper (Nature Communications 2025) inaccessible due to paywall"]
- **known artefacts**: ["Cloud and shadow masking artefacts inherited from HLS input","19-layer output structure uniform across MGRS tiles; layer-specific interpretation requires the product specification document"]
- **last verified date**: "2026-05-18T00:00:00.000Z"
- **verified by**: agency-doc
- **claim status**: agency-verified
- **deployment context**: orbital

## Compositional position
- defor (topics) --[topic_capabilities]--> OPERA DIST-ALERT-HLS (Version 1)
- eudr (regulations) --[satisfied-by]--> OPERA DIST-ALERT-HLS (Version 1)

---
Source: https://eo-atlas.org/data_products/dist-alert
Maintainer: SpectraWorks B.V. (CC-BY 4.0)