Data set contains 1- Annual output (2000-2018) of simulated plant respiration and net primary productivity from JULES with standard (Q10=2) and temperature dependent Q10 (TDQ₁₀) with and without incorporation of nocturnal non-temperature control of respiration. Related readme file is included (Readme JULES output.txt). 2-Python code (manuscript-code.zip) and data sets (Source Data.zip) to produce all manuscript figures including supplementary material. Readme file is included within mansucript-code.zip.