If you are following a particular style, try to form the citation according to the general rules of that style. If in doubt, it is better to provide more information than less.
The general parts of a data citation are:
1. Responsible Party;
2. Title of dataset;
3. Edition or version of dataset, if applicable;
4. Name and location of data center, repository, or publisher;
5. Date published;
6. Analysis software, if required;
7. Date accessed;
8. URL, DOI or other persistent link;
9. Parameters selected, if applicable
Alternately, Mark Parsons from the NCAR Library suggests this:
Author(s). ReleaseDate. Title, Version. [editor(s)]. Archive. Locator (such as DOI). [date/time accessed]. [subset used].