C:H:N:O:P stoichiometry and oxygen demand of marine organic matter are driven by phytoplankton ecophysiology

This repository contains the model output and MATLAB analysis codes used to reproduce the results presented in: Sharoni, S., Inomura, K., Dutkiewicz, S., Jahn, O., Britten, G. L., and Follows, M. J. (2026). C:H:N:O:P stoichiometry and oxygen demand of marine organic matter are driven by phytoplankton ecophysiology. Science Advances. The repository includes: NetCDF model output from three simulations with variable and constant respiration quotients (R–ΣO2:C = variable, 1.3, and 1.5). MATLAB scripts to reproduce Figures 2–8 of the main text. Observational data files used for model validation. The biogeochemical model is based on the MITgcm with the Darwin ecosystem module. Custom modifications to the macromolecular allocation model (CFM-phyto) are described in the Methods and Supplementary Materials of the paper, and are available at: https://github.com/shlomitsharoni/darwin3/releases/tag/macromol_CHNOP. Software requirements: MATLAB R2023a or later with the Mapping Toolbox.