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

 CO₂ _ ECO6055 _ surface - insitu _ ISAC _ data1

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2024-12-24	0037-6055-1001-01-01-9999 -2025-01-01-0037	The latest version
2023-09-05	0037-6055-1001-01-01-9999 -2023-09-05-1047	Included in Yearly Fixed Dataset 2024
2021-05-31	0037-6055-1001-01-01-9999 -2021-05-29-1434	Included in Yearly Fixed Dataset 2022
2019-03-07	0037-6055-1001-01-01-9999 -2019-01-28-2347	Included in Yearly Fixed Dataset 2020
2018-08-21	0037-6055-1001-01-01-9999 -2018-06-27-1536	Included in Yearly Fixed Dataset 2018