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

 H₂ _ ALT4001 _ surface - flask _ CSIRO _ data1

Updated Date	Version † met : with meteorological data	Details
2025-07-04	0016-4001-4001-01-02-9999 -2025-07-01-1740	The latest version
2024-12-18	0016-4001-4001-01-02-9999 -2025-01-01-0016
2024-07-19	0016-4001-4001-01-02-9999 -2024-07-02-1636	Included in Yearly Fixed Dataset 2024
2023-07-18	0016-4001-4001-01-02-9999 -2023-07-14-1015	Included in Yearly Fixed Dataset 2023
2022-07-08	0016-4001-4001-01-02-9999 -2022-06-23-1539	Included in Yearly Fixed Dataset 2022
2021-07-09	0016-4001-4001-01-02-9999 -2021-07-05-0440	Included in Yearly Fixed Dataset 2021
2021-04-09	0016-4001-4001-01-02-9999 -2021-04-08-1004
2020-08-24	0016-4001-4001-01-02-9999 -2020-08-17-1359	Included in Yearly Fixed Dataset 2020
2020-07-08	0016-4001-4001-01-02-9999 -2020-06-29-1029
2019-07-26	0016-4001-4001-01-02-9999 -2019-07-19-1754	Included in Yearly Fixed Dataset 2019
2018-10-18	0016-4001-4001-01-02-9999 -2018-10-05-1414	Included in Yearly Fixed Dataset 2018
2018-06-18	0016-4001-4001-01-02-9999 -2018-03-13-1404