Earthdata

Earthdata
Name	Earthdata
Type	Earth science data portal
Owner	NASA
Launched	2013
Website	Earthdata (NASA)

Earthdata Earthdata is a NASA-managed platform that aggregates, curates, and distributes Earth science datasets collected by NASA missions, instruments, and partner agencies. The platform connects users to satellite missions, field campaigns, and model outputs from agencies and institutions worldwide, supporting research, operations, and education across disciplines. Earthdata integrates archival holdings from major observatories and data centers to enable discovery, subsetting, and programmatic access for diverse communities.

Overview

Earthdata consolidates data stewardship functions across NASA centers and affiliated repositories such as Goddard Space Flight Center, Jet Propulsion Laboratory, Ames Research Center, Langley Research Center, and Johnson Space Center. It interoperates with international entities including European Space Agency, Japan Aerospace Exploration Agency, Canadian Space Agency, UK Space Agency, and French National Centre for Space Studies. The platform indexes products from mission suites like Landsat program, Terra (satellite), Aqua (satellite), Suomi NPP, Sentinel-1, Sentinel-2, ICESat-2, GRACE, MODIS, VIIRS, and SMAP. Earthdata's architecture leverages standards promoted by organizations such as Open Geospatial Consortium, Group on Earth Observations, Committee on Earth Observation Satellites, DataONE, and International Science Council.

Data Products and Services

Earthdata catalogs sensor radiances, gridded climate records, reanalysis products, and thematic higher-level derivatives from projects including MODIS, ASTER, Landsat 8, Landsat 9, ICESat, GRACE-FO, OCO-2, CYGNSS, CloudSat, CALIPSO, Jason-3, Sentinel-3, and SMAP. It serves calibrated level-1 radiometry, geolocated level-2 retrievals, and science-ready level-3 and level-4 products used by initiatives such as World Climate Research Programme, Intergovernmental Panel on Climate Change, International Panel on Climate Change (alternate citation contexts), National Snow and Ice Data Center, Paleoclimate Program, and Global Precipitation Measurement. Services include metadata harvesting compatible with Dublin Core, ISO 19115, and CF Convention conventions to support cataloging by repositories like NASA Earth Observing System Data and Information System, National Centers for Environmental Information, Oak Ridge National Laboratory, PANGAEA, and NOAA National Centers for Environmental Information.

Data Access and Tools

Earthdata exposes datasets via APIs, OPeNDAP, THREDDS, OpenDAP, and Web Coverage Service endpoints and integrates clients such as Panoply (software), HDFView, QGIS, ArcGIS, pyproj, xarray, and GDAL. Users authenticate through credential systems aligned with NASA Earthdata Login and federated identity frameworks used by ORCID, InCommon, and eduGAIN. Processing and analysis are enabled by cloud-hosted environments and compute collaborations with Amazon Web Services, Google Cloud Platform, Microsoft Azure, NSF-backed cyberinfrastructure like XSEDE, and science platforms such as Pangeo and Jupyter Notebook. Data subsetting, reprojection, and on-the-fly transformation services are compatible with software ecosystems including Python (programming language), R (programming language), Matlab, and IDL.

Applications and Use Cases

Earthdata-derived products inform operational forecasting, disaster response, and environmental monitoring used by National Oceanic and Atmospheric Administration, United States Geological Survey, Federal Emergency Management Agency, United Nations Environment Programme, and World Food Programme. Scientific studies leveraging these data contribute to literature published in venues like Nature (journal), Science (journal), Geophysical Research Letters, Journal of Geophysical Research, and Remote Sensing of Environment. Applications span decadal climate analyses for Intergovernmental Panel on Climate Change assessments, cryosphere monitoring for Antarctic Treaty System conservation, hydrology studies supporting Global Runoff Data Centre, air quality and emissions inventories tied to Convention on Long-range Transboundary Air Pollution, and urban mapping used by United Nations Human Settlements Programme.

Governance and Partnerships

Governance of the platform involves coordination among NASA directorates, data centers, and stakeholders including NASA Earth Science Division, Science Mission Directorate (NASA), National Aeronautics and Space Administration, National Oceanic and Atmospheric Administration, European Commission, Committee on Earth Observation Satellites, Group on Earth Observations, and academic partners at institutions like Massachusetts Institute of Technology, California Institute of Technology, University of Colorado Boulder, Columbia University, University of Maryland, Stanford University, University of California, Berkeley, Scripps Institution of Oceanography, and University of Washington. Funding and policy frameworks reflect priorities set by legislatures and executive offices such as United States Congress and White House Office of Science and Technology Policy while adhering to data policy principles advocated by FAIR Data Principles-aligned initiatives and international open data commitments.

History and Development

The consolidation that produced Earthdata grew from earlier infrastructures such as NASA Earth Observing System Data and Information System, EOSDIS, National Snow and Ice Data Center, and mission-specific archives for Landsat program and MODIS. Development milestones include integration of legacy archives from Goddard Earth Sciences Data and Information Services Center and migration toward cloud-based access in partnership with Amazon Web Services and Google Cloud Platform. The platform evolved through community-driven workshops and guidance from bodies like National Academies of Sciences, Engineering, and Medicine, US Global Change Research Program, NASA Advisory Council, and international working groups under Committee on Space Research and United Nations Committee on the Peaceful Uses of Outer Space.

Category:NASA data services