South American Field Boundaries

Name

llms.txt

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2.16 KB

Content Type

text/plain

Last Modified

21 Jul 2026

Source URL

https://data.source.coop/wri-data-lab/trazofields/eap-release/eap-trazosa/llms.txt

Cloud URI

s3://us-west-2.opendata.source.coop/wri-data-lab/trazofields/eap-release/eap-trazosa/llms.txt

# TrazoSA Field Boundaries — Early Adopters Program (2025)

> **Superseded — not the recommended data.** For current work use
> [`trazo3-fields`](../../trazo3-fields/). Part of the
> [EAP release](../llms.txt); see the [catalog root](../../catalog.json).

Field boundaries from the TrazoSA model, shared through the Early Adopters Program in late 2025. TrazoSA is the South-America-only model: it excludes the global Fields of The World baseline entirely, training on 917 ecoregion chips across all 17 soy ecoregions plus Paraguay partner data.

**This is the only published output of TrazoSA anywhere in this catalog.** It is the most conservative of the models, reporting the fewest boundaries in every region it shares with the others.

## Files (8)

- `argentina_chaco_2024`
- `argentina_cordoba_2024`
- `brazil_goias_2024`
- `brazil_mato_grosso_do_sul_2024`
- `brazil_para_2024`
- `brazil_piaui_2024`
- `brazil_tocantins_2024`
- `paraguay_chaco_2024`

## Schema

| Column | Meaning |
|---|---|
| `det_method` | detection method; constant `auto-imagery` |
| `id` | feature id within the file; not stable across models or releases |
| `area` | field area in **hectares** |
| `perimeter` | field perimeter in **metres** |
| `geometry` | MultiPolygon boundary, EPSG:4326 |

Narrower than the released data: no MapBiomas class (`mbmode24`) and no Hansen forest-loss
columns. All files in this collection share this schema, so they glob:

```sql
SELECT count(*) FROM read_parquet('eap-trazosa/*.parquet');
```

## Caveats

Superseded data from late 2025 — prefer [`trazo3-fields`](../../trazo3-fields/) for current
work. Boundaries are model-derived and have not been field-verified. Field counts are not
comparable across models: Trazo1 and Trazo2 fragment fields more finely than Trazo3, so they
report more boundaries over identical ground. Not intended to be used alone to support
deforestation- or conversion-free claims.

## References

- [Technical note (Grupp et al. 2026)](https://www.wri.org/research/field-boundaries-south-america)
- [EAP release overview](../llms.txt)
- [Model card](https://huggingface.co/worldresourcesinstitute/TrazoSA)