stac-3dep-1m

Static STAC Catalog + STAC GeoParquet for 100,000+ 3DEP 1m DEMs from here (https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/1m)

This repository contains scripts to create a static STAC catalog of 3DEP 1m DEMs hosted on AWS. It creates Static STAC Item JSON generated by a TiTiler STAC endpoint for each 1m TIFF, and at the end saves a single STAC GeoParquet file with all the Items.

Catalog visualization

• Browse the static STAC catalog with STAC Browser:

https://radiantearth.github.io/stac-browser/#/external/raw.githubusercontent.com/uw-cryo/stac-3dep-1m/refs/heads/main/catalog/catalog.json

• Render the STAC GeoParquet with STAC-Map:

https://developmentseed.org/stac-map/?href=https://raw.githubusercontent.com/scottyhq/files/refs/heads/main/catalogv2.parquet

Catalog usage

We created this catalog to test out using GDAL's GTI driver, there are some exploratory notebooks using GDAL, Geopandas, and Rustacpy in the notebooks folder.

Catalog creation

Single collection / workunit

pixi run create-stac --project  WA_KingCounty_2021_B21 --overwrite

Loop over all workunits

pixi run create-all

Create STAC GeoParquet from static STAC catalog

ulimit -n 500000
pixi run catalog-to-geoparquet

References

• Demo using Satellogic's EarthView dataset containing 7.1 million images: https://github.com/bmcandr/satellogic-earthview-stac-parquet/tree/main

• Blog explaining STAC GeoParquet tooling: https://developmentseed.org/blog/2025-05-07-stac-geoparquet/