NSIDC submits every DIF it writes to the GCMD, which is part of the U.S. The DIF is the metadata file format used by the NASA Global Change Master Directory (GCMD) and is compatible with International Standards Organization (ISO) and Federal Geographic Data Committee (FGDC) metadata standards. Both standardize a data set's metadata, increase ease of use, and allow future access to that data set. Formats may include the following: Metadata record and summary documentation: When resources and agreed-to level of service permits, NSIDC produces two types of data set documentation for published data sets, based on information that PIs submit with their data: (1) a Data Interchange Format (DIF) file and (2) a summary document. In all cases, metadata and documentation follow standards and best practices, and are made publicly available. The format of this documentation may vary by the level of service and the nature of the data. 2.Data Set Docunmentaion: NSIDC requires that all data have some form of metadata and documentation describing the data. If data to be accepted by NSIDC are not in a preferred format, the relevant program or designated point of contact should review the costs of conversion to a preferred format to ensure consistency, availability and long-term access.
#GLIMS AND GLAM UPDATE#
The SMT will regularly review these standards and update them as needed. Data sets archived at and distributed by NSIDC will conform to NSIDC standard formats. NSIDC will use accepted standards in its data management practices. Specifics of these policies are elaborated in the remainder of this document.ġ.Metadata and Data Format Standars: In keeping with data management best practices, it is important for archives to preserve data as completely and coherently as possible, maintaining critical information about context and connections. Archival repositories ought to cooperate in preserving historical records. Archivists should administer their collections equitably and impartially. Sensitive information and information given in situations presumed to be private should be protected from use as long as that sensitivity remains. Archival records ought to be organized properly and in a timely way so they can be used.
Some records ought to be preserved long-term, even after their immediate usefulness has passed Archival records ought to be preserved as completely and coherently as possible, including critical information about context and connections. These principles include the following: Archival records exist to be used, not merely saved for their own sake.
NSIDC bases its data management policies for all data on proven archival principles and best practices.
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