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. 2023 Dec 6;624(7992):579–585. doi: 10.1038/s41586-023-06772-4

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Extended Data Fig. 3 — a–d, Observations and optimal model. e–h, Model constrained using only O₂ and DOC based on the SeaWiFS CAFE NPP field. The plot shows the joint density distribution for the modelled and observed tracer concentrations. The volume under the distribution integrates to 100th percentiles. The colour indicates the fraction of the distribution that falls outside the given contour. The dashed red line shows the one-to-one line. The optimal model captures 93%, 87%, 94% and 88% of the spatial variance of the GLODAPv2 DIP, ALK, DIC and O₂ data, respectively, whereas the model constrained using only DOC and O₂ captures 66%, 0.0%, 56% and 89% of the spatial variance of the GLODAPv2 DIP, ALK, DIC and O₂ data, respectively.

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