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

 N₂O _ CYA7004 _ surface - flask _ CSIRO _ data1

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2025-07-04	0016-7004-1003-01-02-9999 -2025-07-01-1740#21	The latest version
2024-12-18	0016-7004-1003-01-02-9999 -2025-01-01-0016
2024-07-19	0016-7004-1003-01-02-9999 -2024-07-02-1636#20	Included in Yearly Fixed Dataset 2024
2023-07-18	0016-7004-1003-01-02-9999 -2023-07-14-1015#19	Included in Yearly Fixed Dataset 2023
2022-07-08	0016-7004-1003-01-02-9999 -2022-06-23-1539#18	Included in Yearly Fixed Dataset 2022
2021-08-13	0016-7004-1003-01-02-9999 -2021-08-10-1015#17	Included in Yearly Fixed Dataset 2021
2021-07-09	0016-7004-1003-01-02-9999 -2021-07-05-0440
2021-04-09	0016-7004-1003-01-02-9999 -2021-04-08-1004
2020-07-08	0016-7004-1003-01-02-9999 -2020-06-29-1029#16	Included in Yearly Fixed Dataset 2020
2019-07-26	0016-7004-1003-01-02-9999 -2019-07-19-1754#15	Included in Yearly Fixed Dataset 2019
2018-10-18	0016-7004-1003-01-02-9999 -2018-10-05-1414#14	Included in Yearly Fixed Dataset 2018
2018-06-18	0016-7004-1003-01-02-9999 -2018-03-13-1404