Product Details

Visibility: Public
Owner: Clay
Created: 1 Jun 2026
Last Updated: 2 Jun 2026

Product Details

Product Contents

Product Details

Visibility: Public
Owner: Clay
Created: 1 Jun 2026
Last Updated: 2 Jun 2026

Product Contents

root

rasters

README.md

Name: README.md
Size: 2.53 KB
Content Type: text/markdown
Last Modified: 2 Jun 2026
Source URL: https://data.source.coop/clay/lgnd-embeddings/rasters/README.md
Cloud URI: s3://us-west-2.opendata.source.coop/clay/lgnd-embeddings/rasters/README.md

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LGND Embeddings

Name: LGND Embeddings
Creator: Clay

This repository contains Clay embedding datasets created and maintained by lgnd.ai. Licensed under CC BY 4.0.

Name: README.md
Size: 2.53 KB
Content Type: text/markdown
Last Modified: 2 Jun 2026
Source URL: https://data.source.coop/clay/lgnd-embeddings/rasters/README.md
Cloud URI: s3://us-west-2.opendata.source.coop/clay/lgnd-embeddings/rasters/README.md

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Rasters

A STAC GeoParquet catalog of every satellite scene processed to produce the embeddings in this repository, organized by collection. Use this dataset to look up source imagery metadata — scene footprints, acquisition times, and COG asset URLs — and join back to the embeddings via stac_item_id.

File

One STAC GeoParquet file per collection:

Schema (sentinel-2-l2a)

Column	Type	Description
`id`	string	Scene identifier (e.g. `S2B_33TVH_20170930_0_L2A`). Join key to `stac_item_id` in the embeddings datasets.
`collection`	string	STAC collection name (e.g. `sentinel-2-l2a`)
`datetime`	timestamp	Acquisition timestamp
`geometry`	binary (WKB)	Scene footprint polygon in EPSG:4326
`bbox`	struct	Bounding box (`xmin`, `ymin`, `xmax`, `ymax`)
`assets`	struct	COG asset URLs per band (see below)
`gsd`	double	Ground sample distance in meters (10.0)
`file_last_modified`	string	Last modified timestamp of source file
`stac_version`	string	STAC spec version (`1.0.0`)
`stac_extensions`	list	STAC extensions used (empty)
`links`	list	STAC links (empty)
`type`	string	GeoJSON feature type (`Feature`)

Data Format

STAC GeoParquet 1.1.0 with geo and stac-geoparquet metadata
Hilbert curve spatial ordering
256 MB row groups

Usage

Joining rasters to embeddings

License

Licensed under CC BY 4.0.

Rasters

File

One STAC GeoParquet file per collection:

Schema (sentinel-2-l2a)

Column	Type	Description
`id`	string	Scene identifier (e.g. `S2B_33TVH_20170930_0_L2A`). Join key to `stac_item_id` in the embeddings datasets.
`collection`	string	STAC collection name (e.g. `sentinel-2-l2a`)
`datetime`	timestamp	Acquisition timestamp
`geometry`	binary (WKB)	Scene footprint polygon in EPSG:4326
`bbox`	struct	Bounding box (`xmin`, `ymin`, `xmax`, `ymax`)
`assets`	struct	COG asset URLs per band (see below)
`gsd`	double	Ground sample distance in meters (10.0)
`file_last_modified`	string	Last modified timestamp of source file
`stac_version`	string	STAC spec version (`1.0.0`)
`stac_extensions`	list	STAC extensions used (empty)
`links`	list	STAC links (empty)
`type`	string	GeoJSON feature type (`Feature`)

Data Format

STAC GeoParquet 1.1.0 with geo and stac-geoparquet metadata
Hilbert curve spatial ordering
256 MB row groups

Usage

Joining rasters to embeddings

License

Licensed under CC BY 4.0.

1rasters/
2  collection=sentinel-2-l2a/
3    stac.parquet
4  collection=naip/          (future)
5    stac.parquet

1rasters/
2  collection=sentinel-2-l2a/
3    stac.parquet
4  collection=naip/          (future)
5    stac.parquet

1import duckdb
2
3# Find all scenes over Boulder, CO in 2024
4duckdb.sql("""
5    SELECT id, datetime, assets.red.href, assets.nir.href
6    FROM read_parquet(
7        's3://us-west-2.opendata.source.coop/clay/lgnd-embeddings/rasters/collection=sentinel-2-l2a/stac.parquet',
8        hive_partitioning=true
9    )
10    WHERE bbox.xmin > -105.5 AND bbox.xmax < -105.0
11      AND bbox.ymin > 39.9 AND bbox.ymax < 40.1
12      AND datetime >= '2024-01-01'
13      AND datetime < '2025-01-01'
14    LIMIT 10
15""")

1import duckdb
2
3# Find all scenes over Boulder, CO in 2024
4duckdb.sql("""
5    SELECT id, datetime, assets.red.href, assets.nir.href
6    FROM read_parquet(
7        's3://us-west-2.opendata.source.coop/clay/lgnd-embeddings/rasters/collection=sentinel-2-l2a/stac.parquet',
8        hive_partitioning=true
9    )
10    WHERE bbox.xmin > -105.5 AND bbox.xmax < -105.0
11      AND bbox.ymin > 39.9 AND bbox.ymax < 40.1
12      AND datetime >= '2024-01-01'
13      AND datetime < '2025-01-01'
14    LIMIT 10
15""")

1import duckdb
2
3duckdb.sql("""
4    SELECT e.chips_id, e.embedding, r.assets.red.href
5    FROM read_parquet('s3://...monthly-aggregated/**/*.parquet', hive_partitioning=true) e
6    JOIN read_parquet('s3://...rasters/collection=sentinel-2-l2a/stac.parquet', hive_partitioning=true) r
7      ON e.stac_item_id = r.id
8    WHERE e.year = 2024 AND e.month = 6
9    LIMIT 10
10""")

1import duckdb
2
3duckdb.sql("""
4    SELECT e.chips_id, e.embedding, r.assets.red.href
5    FROM read_parquet('s3://...monthly-aggregated/**/*.parquet', hive_partitioning=true) e
6    JOIN read_parquet('s3://...rasters/collection=sentinel-2-l2a/stac.parquet', hive_partitioning=true) r
7      ON e.stac_item_id = r.id
8    WHERE e.year = 2024 AND e.month = 6
9    LIMIT 10
10""")