A Digital Object Identifier or DOI is a unique alphanumeric string used to identify an digital object and provide a permanent link online. DOIs are often used in online publications in citations. DOIs are assigned and regulated by The International DOI Foundation (IDF). ()
DOIs are alphanumeric strings in the following format:
–doi:[prefix]/[suffix]
Prefix – 10.[number] where [number] identifies registrant agent. 5067 has been assigned for NASA ESDIS.
Suffix – uniquely identifies the data item and it’s format is assigned and managed by the registrant agent.
DOI Suffix Model
The following are models for a standard DOI suffix string vocabulary; they will be used as guidance in assigning EOSDIS DOIs. Forward slash is used to represent containment. The purpose is to characterize the data product.
[mission]/[instrument]/data[m][n]
[campaign]/[platform group]/data[m][n]
[campaign]/[measurement group]/data[n]
[program]/[measurement group]/data[n]
[measurement group]/[data[n]
[instrument]/[shortname.version]
In the above syntax, the processing level of the product is depicted by [m] where ‘m’ ranges from 1 through 3 for products from satellite instruments. (i.e., NASA satellite products are generally depicted as belonging to a Level of processing, Level 1 being calibrated/geolocated radiances through Level 3 being global grids of derived geophysical values). When a Level designation isn’t appropriate [m] is dropped from the syntax.
Keyword "DATA" is placed in the DOI to distinguish raw and processed data collections from research papers.
A sequence number is assigned on a first-come-first-serve basis, represented by [n].
DOIs have additional value when stored in product metadata. Researchers that acquire product data files should be able use the DOI to find the definitive documentation from NASA’s Scientific and Technical Information archives. Adding DOIs to product metadata will also enable tools for provenance tracking – help find more information about the creation of the data product. This link takes you to a page that explains the conventions we want to use and evaluate: DOIs in the Metadata
