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

 ¹³CH₄ _ EIC3004 _ surface - flask _ NOAA _ sil

Updated Date	Version † met : with meteorological data	Details
2024-12-25	0002-3004-1101-01-02-3101 -2025-01-01-0002	The latest version
2023-10-03	0002-3004-1101-01-02-3101 -2023-10-02-0922	Included in Yearly Fixed Dataset 2024
2023-04-20	0002-3004-1101-01-02-3101 -2023-04-17-1512	Included in Yearly Fixed Dataset 2023