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

 CO₂ _ LMT6054 _ surface - insitu _ ISAC _ data1

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2024-12-24	0037-6054-1001-01-01-9999 -2025-01-01-0037† met	The latest version
2024-10-24	0037-6054-1001-01-01-9999 -2024-10-23-0624† met
2022-10-11	0037-6054-1001-01-01-9999 -2022-10-07-1337† met	Included in Yearly Fixed Dataset 2024
2020-06-16	0037-6054-1001-01-01-9999 -2019-12-16-1556† met	Included in Yearly Fixed Dataset 2022
2019-03-08	0037-6054-1001-01-01-9999 -2019-03-07-2014	Included in Yearly Fixed Dataset 2019
2018-08-21	0037-6054-1001-01-01-9999 -2018-06-27-1536	Included in Yearly Fixed Dataset 2018