Table 1.

Summary of model configurations

Model configurationa	T growth	Physiological interpretation
Geog	Based on a pre‐industrial reference period 1901–1910. In the tropics T growth is fixed to mean annual monthly T air. Elsewhere T growth is defined as mean monthly T air of the warmest quarter of the year.	The temperature response of photosynthetic capacity varies geographically due to inherent differences in temperature responses among plants growing in thermally contrasting habitats due to extensive long‐term physiological and biochemical plant adjustments to large geographical variations in temperature. In this case, plants are unable to acclimate to sustained changes in growth temperature.
Geog +Acclim	T growth is mean current month T air. It varies spatially and temporally.	The temperature response of photosynthetic capacity varies geographically and temporally. It is assumed that there are no inherent differences in temperature responses of photosynthetic capacity across plants but all can acclimate to changes in growth temperature.
Ctrl	na	There are no differences in the temperature response of photosynthetic capacity across plants and there is no geographical long‐term variability nor thermal acclimation, therefore all plant types are represented with a single temperature response function and parameters.

na, not applicable.

^aAll configurations use a common underlying framework, the KK07 algorithms (Eqns (Eqn 1), (Eqn 2), (Eqn 3), (Eqn 4), (Eqn 5)) but applied in a different manner.