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Data Status: All data are PRELIMINARY.
Data Policy: We request that a proper acknowledgment to the "NOAA Chemical Sciences Laboratory" accompany the use of this data in any publications and presentations. If the use of this data in a publication constitutes a major or reasonably significant aspect of an article, co-authorship by a NOAA CSL scientist is appropriate; please discuss any such planned use with the contact scientists. We welcome collaborations and will lend our scientific expertise in interpretation and evaluation of the data.