Process Description
Create DOI Landing Page
The DOI URL references a landing page. The landing page should have enough information such that upon arrival, the user knows they have reached the source of the product and can gain access to it. The key guidelines include a summary description of the product, access to download the data product, and all of the other citation information about the product.
Assign DOIs
A data provider requesting DOIs for various data products from ESDIS must provide a minimal subset of metadata for each data product for review. Once the metadata is reviewed and validated (1-3 days), ESDIS will reserve a unique DOI for the product.
Register DOIs
When the data provider has submitted all the DOI metadata required by ESDIS, and EZID, including the accessible landing page describing the data product, then ESDIS will register those DOIs with EZID. If all metadata except the product landing page are available, ESDIS can reserved those DOIs until the landing page is ready and then the DOI will be registered. All DOIs, registered or reserved, are listed by project here on the ECE.
The ESDIS DOI Registration Process is explained in more detail in the diagram below.
ESDIS has recently upgraded the DOI registration system from a manually-driven to one that largely automates the DOI process. The new automated feature include: a) reviewing the DOI metadata, b) assigning of opaque DOI name if data provider chooses, c) reserving, d) registering, and e) updating the DOI information. The flexibility of reserving the DOI allows data providers to embed and test the DOI in the data product metadata before formally registering with EZID. The DOI update process allows the changing of any DOI metadata except the DOI name unless the name has not been registered.
To submit DOIs for registration for EOSDIS supported projects, contact Nate James (nathan.l.james@nasa.gov) and Lalit Wanchoo (lalit.wanchoo-1@nasa.gov).
DOI Naming Convention
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]
10.5067/[opaque-id]
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].
A few examples include:
- Aura HIRDLS level 2 data product
- 10.5067/Aura/HIRDLS/DATA201
- MEaSUREs GSSTF Level 3 data product
- 10.5067/MEASURES/GSSTF/DATA301
- Aura AMSR-E data product
- 10.5067/AMSR–E/AE_OCEAN.003
Reference example: http://dx.doi.org/10.5067/MEASURES/GSSTF/DATA308
Roles and Responsibility
Three organizations are involved in the registering EOSDIS DOIs.
EZID is the service provider and provides ESDIS access to DOI handling system 24 hours a day and 7 days a week to register and modify DOIs. In addition, keeps ESDIS updated with the any changes/updates to the DOI data model or services that are offered by EZID.
The DAAC is the content provider and usually the publisher of the data product that is assigned a DOI. They are responsible to provide ESDIS with the data product metadata via the DOI Submission Form, develop and maintain data product related landing page, and assist ESDIS in DOI maintenance by providing ESDIS any changes in the product metadata or landing page URL.
ESDIS is the registration service provider and is responsible for managing the “uniqueness” of DOIs when creating them. DOIs assigned by ESDIS through EZID will always begin with the prefix 10.5067. ESDIS also provides guidance to the data provider in developing a DOI identifier suffix, reviewing the DOI name and metadata for its completeness, assigning DOIs to the products if requested, reserving DOIs, registering DOIs, and updating DOIs. ESDIS maintains a list of all products with DOIs that have been registered or reserved with the project.
Overview
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