09-10, 13:30–14:00 (America/Chicago), Grand C
In recent years, STAC has become crucial for geospatial data interoperability, particularly for indexing public datasets. This presentation will provide an update on STAC and highlight the largest public implementations: Earth Search (AWS), Planetary Computer (Azure), and CMR-STAC (NASA).
The STAC spec, and open-source software ecosystem around it, has provided an interoperable standard for access to geospatial data. This is most apparent with large public datasets that have been made available through different cloud providers. However, the data collections and metadata surfaced through these different APIs is different.
This presentation will provide a brief update on the STAC specification itself, the changes with STAC 1.1, and the state of the extensions and ecosystem. It will also include an overview of the major public catalogs with an emphasis on Earth Search.
Earth-Search provides an index for some public datasets available through the AWS Registry of Open Data (RODA) and has been shown to be a valuable resource for accessing the Sentinel-2 archive as Cloud-Optimized GeoTIFFs and is being used by researchers for science and commercial companies for building applications. We will present recent updates to Earth Search and will explain the differences between the different Sentinel-2 collections.
In addition to Earth Search, a summary will be given of other major STAC APIs including CMR-STAC, which is a catalog of NASA Earth Science data, and the Planetary Computer, a STAC API for public datasets available on Azure. We will talk about the most important extensions that are used in these STAC APIs and give some tips for best practices in your own catalogs.
