standards > model/format > DOI:10.25504/FAIRsharing.esxaaq


ready Directory Interchange Format

Abbreviation: DIF


General Information
Directory Interchange Format (DIF) is a descriptive and standardized format for exchanging information about geospatial data sets. It includes elements focusing on instruments that capture data, temporal and spatial characteristics of the data, and projects with which the dataset is associated. From its inception in the late 1980’s as a way to document and exchange information on scientific data to its implementation in NASA's Global Change Master Directory (GCMD), the DIF has evolved to serve the user community in the discovery, access and use of Earth science and related data. GCMD metadata records are now maintained in the Common Metadata Repository (CMR), and the DIF is one of several supported formats for submitting metadata to CMR. The DIF, the ECHO metadata model, and the ISO 19115 standards for science metadata formed the basis for NASA's Unified Metadata Model (UMM) used by CMR.



How to cite this record FAIRsharing.org: DIF; Directory Interchange Format; DOI: https://doi.org/10.25504/FAIRsharing.esxaaq; Last edited: Sept. 21, 2020, 11:20 a.m.; Last accessed: Nov 25 2020 7:40 p.m.


Record added: July 25, 2017, 7:45 p.m.
Record updated: Sept. 21, 2020, 11:20 a.m. by The FAIRsharing Team.

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Related Databases (4)
PANGAEA - Data Publisher for Earth and Environmental Science
The information system PANGAEA is operated as an Open Access library aimed at archiving, publishing and distributing georeferenced data from earth system research. PANGAEA is a member of the ICSU World Data System (WDS).

National Snow and Ice Data Center Data Portal
The National Snow and Ice Data Center (NSIDC) contains data on the cryosphere, which includes snow, ice, glaciers, frozen ground, and climate interactions. NSIDC manages and distributes scientific data, creates tools for data access, supports data users, performs scientific research, and educates the public about the cryosphere. Data are from satellites and field observations, and are from NASA, NSF, NOAA, and other programs. All data are available free of charge.

NASA Global Change Master Directory / CEOS International Directory Network
The CEOS International Directory Network (IDN), working through NASA's Global Change Master Directory (GCMD), holds more than 32,000 Earth science data set descriptions, which cover subject areas within the Earth and environmental sciences. The project mission is to assist researchers, policy makers, and the public in the discovery of and access to data, related services, and ancillary information (which includes descriptions of instruments and platforms) relevant to global change and Earth science research. The GCMD/IDN is an international effort developed to assist researchers in locating information on available data sets. The directory provides free, online access to information for scientific data worldwide in the Earth sciences: geoscience, hydrosphere, biosphere, satellite remote sensing, and atmospheric sciences. Sometimes referred to as the CEOS IDN Master Directory, it describes data held by university departments, government agencies, international government agencies, and associated organizations. Both GCMD and IDN are used to refer to this repository in help pages and other websites, and therefore both are represented here.

Biological and Chemical Oceanography Data Management Office
The Biological and Chemical Oceanography Data Management Office (BCO-DMO) is a publicly accessible earth science data repository created to curate, publicly serve (publish), and archive digital data and information from biological, chemical and biogeochemical research conducted in coastal, marine, great lakes and laboratory environments. The BCO-DMO repository works closely with investigators funded through the NSF OCE Division’s Biological and Chemical Sections and the Division of Polar Programs Arctic Sciences and Antarctic Organisms & Ecosystems. The office provides services that span the full data life cycle, from data management planning support and DOI creation, to archive with appropriate national facilities.


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