NOTICE (September 2017): Data previously stored at the CDIAC archive are being transitioned to the new, ESS-DIVE archive. This website provides access to the CDIAC data during the transition. If you have any questions regarding the new archive or the data transition, please contact

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Using Quick Data Search

The "Quick Data Search" will accept one or more words and will locate all CDIAC data sets related to those words. For multiple words, the search is conducted with an "and" logic. For example, searching on "airborne sunphotometer" (note with quotes) means that both of these words must be in the data set for it to be found. This feature allows you to prune search results by adding more words.

If you have multiple words and the search was not satisfactory, try the words one-at-a-time.

Please use our CDIAC metadata search engine ( for advanced searches (fielded, spatial and time period).