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Standards and Practices
ESO coordinates standards policy and activities within ESDIS. ESO follows a Standards Process for identification of appropriate standards and practices and their subsequent adoption for use in NASA Earth science data systems.

NASA Earth Science Division (ESD) Approved Standards for use in NASA Earth Science Data Systems
Data Format

HDF 5
HDF EOS 5
NetCDF Classic
NetCDF-4/HDF5 File Format
OGC KML
ASCII File Format Guidelines for Earth Science Data
HDF 4
HDF 4 is being deprecated in favor of HDF 5 and is therefore not recommended for new missions. Although support will still be offered for HDF 4, it will be primarily of a sustainment nature
HDF EOS 2
HDF EOS 2 is being deprecated in favor of HDF EOS 5 and is therefore not recommended for new missions. Although support will still be offered for HDF EOS 2, it will be primarily of a sustainment nature
Metadata

Unified Metadata Model (UMM)
GCMD Directory Interchange Format (DIF)
Global Change Master Directory (GCMD) Keywords Community Forum
ECHO Metadata Standard
NetCDF Climate and Forecast (CF) Metadata Conventions
Discovery and Access

The Data Access Protocol – DAP 2.0
OpenGIS ® Web Map Service Version 1.1.1
CEOS OpenSearch
Polling with Delivery Record (PDR) Mechanism
Data Quality

Recommendations from the Data Quality Working Group
Templates for NASA Data Management Plans
Interoperability

Dataset Interoperability Recommendations for Earth Science
Mapping HDF5 to DAP2
ASCII Data Formats

ASCII File Format Guidelines for Earth Science Data
International Consortium for Atmospheric Research on Transport and Transformation (ICARTT) File Format Standards
SeaBASS Data File Format
NASA Aerogeophysics ASCII File Format Convention
YAML Encoding ASCII Format for GRACE/GRACE-FO Mission Data
Related Technical Information
Guidelines for a Common File Format for Aura Instruments
Creating File Format Guidelines: The Aura Experience