Timestamp offset in data from all Picarro instruments

We have discovered an 8-minute timestamp offset in data from all Picarro instruments, beginning 19 September 2023 and ending 30 November 2023. This issue only affects data collected by the instrument, not the valves that control switching measurement levels, which leads to incorrect partitioning of data to each measurement level and validation gas in data processing. Affected data products are CH4 concentration (DP1.00030.001), atmospheric CO2 isotopes (DP1.00036.001), and atmospheric H2O isotopes (DP1.00037.001) at all NEON terrestrial sites. We can re-stream the data with the correct timestamps in most cases, although there will be short periods of time at some sites where we will need to correct the timestamps in data processing. An update on this issue will be provided in January 2024.

Please use the Contact Us form for further inquiries related to this issue; select DP1.00030.001, DP1.00036.001, or DP1.00037.001 in the Data Product dropdown list and include the term "INC0070816."