STAC Extensions

ml-model

An Item and Collection extension to describe machine learning (ML) models that operate on Earth observation data.

web-map-links

Allows to provide links to web maps for visualization purposes. Currently, OGC WMTS and XYZ are supported.

insar

STAC extension for InSAR (Interferometric Synthetic Aperture Radar)

ml-aoi

An Item and Collection extension to provide labeled training data for machine learning models.

processing

Indicates from which processing chain data originates and how the data itself has been produced.

raster

Describes raster assets at band level (one or multiple) with specific information such as data type, unit, number of bits used, nodata.

sar

Covers synthetic-aperture radar data that represents a snapshot of the earth for a single date and time.

stac-extensions.github.io

Overview of STAC Extensions, with advice on creating new extensions

pointcloud

Provides a way to describe point cloud datasets. The point clouds can come from either active or passive sensors, and data is frequently acquired using tools such as LiDAR or coincidence-matched imagery.

classification

Describes categorical values and bitfields to give values in a file a certain meaning (classification).

eo

Covers electro-optical data that represents a snapshot of the Earth. It could consist of cloud cover and multiple spectral bands, for example visible bands, infrared bands, red edge bands and panchromatic bands.

sat

Satellite related metadata for data collected from satellites.

authentication

Adds fields to define authentication or authorization flows used to access Assets and Links behind security

storage

Provides additional fields relating to how the asset is stored in the cloud

alternate-assets

Describes alternate locations and mirrors of assets

render

Provide consumers with the information required to view an asset properly (e.g. on a online map)

sentinel-1

Sentinel-1 STAC Extension

ceos-ard

Describes how to comply to the CEOS-ARD specifications with STAC. Supersedes the STAC CARD4L extension.

projection

Provides a way to describe Items whose assets are in a geospatial projection.

sentinel-2

Sentinel-2 STAC Extension

template

A template repository for new extensions. It enables CI for schema publishing and proposes some core structures.

version

Provides fields and link relation types to provide a version and indicate deprecation.

view

View Geometry adds metadata related to angles of sensors and other radiance angles that affect the view of resulting data.

sentinel-5p

Sentinel-5P STAC Extension

virtual-assets

Allows the description of virtual assets composed from 2 or more assets with cross references and repositioning.

product

Generic Product-related properties for STAC

sentinel-3

Sentinel-3 STAC Extension

accuracy

Fields to provide estimates of accuracy, both geometric and measurement (e.g., radiometric) accuracy.

altimetry

Altimetry Extension Specification

cmip6