Each year, the Global Carbon Budget synthesises more than a terabyte of data to report on the major components contributing to the global carbon cycle.
If you are a scientist who wishes to use the underlying data from GCB2024 for your own analyses, then please submit a response through our data access request form. Data from previous carbon budgets is open access and can be downloaded from https://mdosullivan.github.io/GCB/.
Besides the net land sink that is made available open access, we make additional output from the Dynamic Global Vegetation Models as part of the TRENDY initiative, which is available upon request under the following data policy.
Our main objective is to make all TRENDY Data available to the wider scientific community. For the most recent data (TRENDYv11, 1901-2023 used in Global Carbon Budget 2024), co-authorship of TRENDY modellers depends on the importance of the TRENDY data in the study and should be discussed with the TRENDY coordinators (S. Sitch and P. Friedlingstein) early on in the process. All studies should be circulated to the modelling groups prior to submission.
If TRENDY-v11 forms a significant part of any publication / conference presentation (whether or not it is will be a joint decision with the TRENDY co-ordinators) then the modelling groups / co-ordinators should be invited to be co-author (in a reasonable lead time to allow significant input, a minimum 3 weeks before submission — however you are encouraged to engage with the modellers at an earlier stage). If the TRENDY results are only a minor component (e.g. in a figure the multi-model NBP mean is shown) then it is fine just to acknowledge the project (again this is a joint decision between the data user and the TRENDY co-ordinators).
Besides the surface fCO2 and air-sea CO2 flux data that is made available open access, we make additional output from the Global Ocean Biogeochemical models (GCB-ocean) available upon request under the following data policy.
For the current and last year global carbon budget, the full GCB-ocean model gridded data are available on request via this website. The GCB-ocean modelling groups have identified studies they will conduct with these data over the coming year. If an external study does not conflict with these studies, the data will be made available. Co-authorship of GCB-ocean modellers depends on the importance of the GCB-ocean data in the study and should be discussed with the GCB-ocean coordinator (J. Hauck) early on in the process. All studies should be circulated to the modelling groups prior to submission.
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