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

 CO₂ _ HKG2034 _ surface - insitu _ HKO _ data1

Updated Date	Version # : used for analysis in the WMO GHG Bulletin (#Volume) † met : with meteorological data	Details
2025-02-27	0027-2034-1001-01-01-9999 -2025-02-14-0406	The latest version
2025-01-21	0027-2034-1001-01-01-9999 -2024-12-16-0532
2024-12-24	0027-2034-1001-01-01-9999 -2025-01-01-0027
2024-09-11	0027-2034-1001-01-01-9999 -2024-09-10-0255	Included in Yearly Fixed Dataset 2024
2024-02-20	0027-2034-1001-01-01-9999 -2024-02-02-0932
2023-09-21	0027-2034-1001-01-01-9999 -2023-09-12-0901
2023-07-31	0027-2034-1001-01-01-9999 -2023-07-27-0145#19	Included in Yearly Fixed Dataset 2023
2023-03-13	0027-2034-1001-01-01-9999 -2023-03-09-0347
2022-11-11	0027-2034-1001-01-01-9999 -2022-11-07-0900
2022-06-01	0027-2034-1001-01-01-9999 -2022-05-31-0903#18	Included in Yearly Fixed Dataset 2022
2022-02-24	0027-2034-1001-01-01-9999 -2022-02-22-0641
2022-01-04	0027-2034-1001-01-01-9999 -2022-01-03-0756
2021-12-07	0027-2034-1001-01-01-9999 -2021-12-03-0523
2021-11-02	0027-2034-1001-01-01-9999 -2021-11-02-0127
2021-10-20	0027-2034-1001-01-01-9999 -2021-10-18-0938
2021-09-08	0027-2034-1001-01-01-9999 -2021-09-03-0940#17	Included in Yearly Fixed Dataset 2021
2021-08-13	0027-2034-1001-01-01-9999 -2021-08-13-0404
2021-07-12	0027-2034-1001-01-01-9999 -2021-07-08-0600
2021-06-11	0027-2034-1001-01-01-9999 -2021-06-08-0419
2021-05-10	0027-2034-1001-01-01-9999 -2021-05-05-0114
2021-04-30	0027-2034-1001-01-01-9999 -2021-04-23-0350
2021-04-21	0027-2034-1001-01-01-9999 -2021-04-13-0312
2021-03-19	0027-2034-1001-01-01-9999 -2021-03-18-0257
2021-02-25	0027-2034-1001-01-01-9999 -2021-02-22-0249
2021-01-29	0027-2034-1001-01-01-9999 -2021-01-27-0244
2020-12-18	0027-2034-1001-01-01-9999 -2020-12-18-0123
2020-11-18	0027-2034-1001-01-01-9999 -2020-11-12-0529
2020-09-18	0027-2034-1001-01-01-9999 -2020-09-17-1730#16	Included in Yearly Fixed Dataset 2020
2020-08-14	0027-2034-1001-01-01-9999 -2020-08-12-1634
2020-07-07	0027-2034-1001-01-01-9999 -2020-07-07-1455
2020-06-12	0027-2034-1001-01-01-9999 -2020-06-09-1104
2020-05-22	0027-2034-1001-01-01-9999 -2020-05-18-1314
2020-05-19	0027-2034-1001-01-01-9999 -2020-05-18-1217
2020-05-07	0027-2034-1001-01-01-9999 -2020-04-29-1825
2020-03-09	0027-2034-1001-01-01-9999 -2020-03-06-1303
2020-02-07	0027-2034-1001-01-01-9999 -2020-02-07-1456
2020-01-15	0027-2034-1001-01-01-9999 -2020-01-14-1320
2019-12-10	0027-2034-1001-01-01-9999 -2019-12-10-1027
2019-11-19	0027-2034-1001-01-01-9999 -2019-11-08-1455
2019-10-18	0027-2034-1001-01-01-9999 -2019-10-15-1806
2019-09-17	0027-2034-1001-01-01-9999 -2019-09-13-1303
2019-08-14	0027-2034-1001-01-01-9999 -2019-08-13-1626#15	Included in Yearly Fixed Dataset 2019
2019-08-01	0027-2034-1001-01-01-9999 -2019-07-25-1534
2019-06-24	0027-2034-1001-01-01-9999 -2019-06-20-1658
2019-05-22	0027-2034-1001-01-01-9999 -2019-05-15-1528
2019-05-07	0027-2034-1001-01-01-9999 -2019-04-17-1749
2019-03-18	0027-2034-1001-01-01-9999 -2019-03-08-1055
2019-02-18	0027-2034-1001-01-01-9999 -2019-02-13-1555
2019-01-09	0027-2034-1001-01-01-9999 -2018-12-24-1236
2018-11-29	0027-2034-1001-01-01-9999 -2018-11-23-1342
2018-11-02	0027-2034-1001-01-01-9999 -2018-10-30-1341
2018-10-23	0027-2034-1001-01-01-9999 -2018-09-27-1709#14	Included in Yearly Fixed Dataset 2018
2018-08-23	0027-2034-1001-01-01-9999 -2018-08-21-1921
2018-07-30	0027-2034-1001-01-01-9999 -2018-07-27-2311
2018-07-05	0027-2034-1001-01-01-9999 -2018-07-03-1634
2018-06-08	0027-2034-1001-01-01-9999 -2018-03-15-1600