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A Python interface to various metadata vocabularies

Project description

Run unit tests and build Python package Coverage Status


An interface to metadata vocabularies for geospatial and other geophysical data


pip install


import pythesint as pti

For JSON vocabularies, it is possible to update the local files using a specific version. The format of the version depends on the provider. If no version is provided, the latest version is retrieved.

import pythesint as pti


import pythesint as pti
    'gcmd_instrument': '9.1.5',
    'cf_standard_name': '20210119T185509',
    'mmd_platform_type': 'a5c8573'


The package follows the standards defined at NASA's Global Change Master Directory (GCMD) ( and the NetCDF-CF conventions (, plus possibly others that will be added as needs emerge... The standards are mapped in Python dictionaries and saved to json-files.

Directory Interchange Format (DIF)

The DIF format is a descriptive and standardized format for exchanging information about scientific data sets. The py-thesaurus-interface package provides an interface to the keywords and formats defined at GCMD.

See: Directory Interchange Format (DIF) Writer's Guide, 2015. Global Change Master Directory. National Aeronautics and Space Administration. [].

Controlled keyword vocabularies from GCMD

See: Global Change Master Directory (GCMD). 2015. GCMD Keywords, Version 8.1. Greenbelt, MD: Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA). URL:

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