Earth observation data access is not limited to a single platform or a single entry point. What follows is a non-exhaustive list of some well-known Earth observation data catalogs usually based on the original agency providing the data:
- EarthData Search: A comprehensive data discovery and access tool provided by NASA’s Earth Observing System Data and Information System (EOSDIS). Contains a wide range of NASA’s Earth science data.
- Copernicus Data Space: Currently in development platform aiming to provide immediate access to large amounts of open and free Earth observation data and scalable interfaces including both new and historical Sentinel images, commercial datasets, as well as Copernicus Contributing Missions.
- USGS Earth Explorer: EarthExplorer (EE) provides online search, browse display, metadata export, and data download for earth science data from the archives of the U.S. Geological Survey (USGS). Usually of largest demand is data from the Landsat missions.
- Open Science Catalog: A catalog of publicly available geoscience products, datasets, and resources developed in the frame of scientific research Projects funded by ESA EO. Queriable by themes, projects, variables, and products.
- NCEI Catalog: NOAA’s National Centers for Environmental Information (NCEI) provides access to various environmental data, including satellite imagery, climate data, and other geospatial datasets. In particular, it is composed of oceanic, atmospheric, and geophysical data.
- STAC Index: A list of publicly available STAC APIs and Static Catalogs.