Unidata is a data facilitator, not a data archive center. Unidata provides mechanisms for accessing some archived data sets and case studies, and some Unidata sites do archive our data streams in raw, encoded form.
A variety of meteorological case studies of unique atmospheric phenomena data, including data and information contributed from the Unidata community.
The Unidata-Wisconsin datastream products, archived at the University of Wisconsin, Madison's Space Science and Engineering Center (SSEC) since 1991.
Much of the realtime data available over the Unidata Internet Data Distribution (IDD) is available via the THREDDS Data Server on Unidata's motherlode data server.
Unidata's main RAMADDA server (hosted on Unidata's motherlode data server) contains access to a variety of datasets including the full IDD feed, Case Studies and other project data.
A short-term data archive hosted on Unidata's motherlode data server contains both raw and decoded IDD data.
The Research Data Archive hosts a permanent archives of IDD global observational data and gridded model data on NCAR's Mass Storage System.