See the data version history.
The data of old versions are available only if the versions are included in Yearly fixed datasets.

 C¹⁸O₂ _ USH3007 _ surface - flask _ NOAA _ sil

Updated Date	Version † met : with meteorological data	Details
2024-12-25	0002-3007-1103-01-02-3101 -2025-01-01-0002	The latest version
2024-11-06	0002-3007-1103-01-02-3101 -2024-11-05-0757
2022-07-12	0002-3007-1103-01-02-3101 -2022-07-05-1524	Included in Yearly Fixed Dataset 2024
2020-09-14	0002-3007-1103-01-02-3101 -2020-09-14-1933	Included in Yearly Fixed Dataset 2021
2019-09-19	0002-3007-1103-01-02-3101 -2019-09-19-1114	Included in Yearly Fixed Dataset 2019
2019-09-03	0002-3007-1103-01-02-3101 -2019-09-02-1741
2018-10-05	0002-3007-1103-01-02-3101 -2018-10-03-1617	Included in Yearly Fixed Dataset 2018
2018-06-25	0002-3007-1103-01-02-3101 -2018-04-10-1519