{"id":42454686,"url":"https://github.com/trevorkeenan/gpp-co2","last_synced_at":"2026-01-28T08:55:44.967Z","repository":{"id":75088594,"uuid":"377289835","full_name":"trevorkeenan/gpp-co2","owner":"trevorkeenan","description":"Code to reproduce the analysis and figures in 'A constraint on historic growth in global photosynthesis due to increasing CO2' Keenan et al. 2021. 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See the retraction notice here:\nhttps://www.nature.com/articles/s41586-022-04869-w\n\nWe have removed the underlying code from the repository to avoid proliferation of the error in other analyses, but leave the description below for anyone wishing to dig deeper.\n\n\n## depreciated text:\n\nFull information on the methods used in this study are attached to this paper and are available\nonline at the link provided above; this includes information about datasets used, as well as the motivation and reasoning\nbehind the analysis.\n\nThe scripts, written in Matlab, are:\n## A. varianceNormalization.m\nThis script derives the relationship between Sland and Beta^{GPP}, and performs variance normalization \nto extract the partial response. \n\n## B. calc_EC_andPlot.m\nThis code, called by 'varianceNormalization.m' uses the emergent constraint between \nthe partial response of Sland to Beta^{GPP} across models to derive the constrained Beta^{GPP} \n\n## Running the code\nRunning A_varianceNormalization.m will produce the following figures reported in Keenan et al. 2021: \\\n*Figure 1a-d  \\\n*ED Figure 1  \\\n*ED Figure 2  \\\n*ED Figure 3  \\\n*ED Figure 6  \n \nA_varianceNormalization.m calls B_calc_EC_andPlot.m\n\n## Folder structure and contents\n ./figures/emergent contains the figures produced \nif the save_figures flag is set to 1.\n\n./TRENDYv6_derived contains derived output from the TRENDY model simulations. \nTRENDY model simulations are not publically available but can be obtained through request to Prof. Sitch (S.A.Sitch@exeter.ac.uk)\n\n./dataIntermediates contains output from the scripts included here, \nextracted from the data contained in ./TRENDYv6_derived\n\n./functions contains plotting code and the prediction error code.\n\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftrevorkeenan%2Fgpp-co2","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ftrevorkeenan%2Fgpp-co2","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftrevorkeenan%2Fgpp-co2/lists"}