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

 N₂O _ HFD6419 _ tower - insitu _ NPL _ tower50

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2025-09-10	0154-6419-1003-02-01-6051 -2025-08-01-1511	The latest version
2024-12-24	0154-6419-1003-02-01-6051 -2025-01-01-0234
2024-08-19	0154-6419-1003-02-01-6051 -2024-08-01-0838	Included in Yearly Fixed Dataset 2024
2023-09-13	0154-6419-1003-02-01-6051 -2023-07-03-0808	Included in Yearly Fixed Dataset 2023
2023-06-02	0154-6419-1003-02-01-6051 -2023-06-01-2357
2022-07-13	0154-6419-1003-02-01-6051 -2022-06-30-1119	Included in Yearly Fixed Dataset 2022
2021-06-11	0154-6419-1003-02-01-6051 -2021-06-09-0153	Included in Yearly Fixed Dataset 2021