Articles | Volume 8, issue 12
Development and technical paper
08 Dec 2015
Development and technical paper |  | 08 Dec 2015

Implementation of an optimal stomatal conductance scheme in the Australian Community Climate Earth Systems Simulator (ACCESS1.3b)

J. Kala, M. G. De Kauwe, A. J. Pitman, R. Lorenz, B. E. Medlyn, Y.-P Wang, Y.-S Lin, and G. Abramowitz

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Cited articles

Avissar, R. and Pielke, R.: The impact of plant stomatal control on mesoscale atmospheric circulations, Agr. Forest Meteorol., 54, 353–372,, 1991.
Ball, J. T., Woodrow, I. E., and Berry, J. A.: A model predicting stomatal conductance and its contribution to the control of photosynthesis, in: Progress in photosynthesis research: proceedings of the VIIth International Congress on Photosynthesis, 10–15 August 1986, Rhode Island, USA, 221–224, 1987.
Bonan, G. B.: Land-atmosphere CO2 exchange simulated by a land surface process model coupled to an atmospheric general circulation model, J. Geophys. Res.-Atmos., 100, 2817–2831,, 1995.
Bonan, G. B., Williams, M., Fisher, R. A., and Oleson, K. W.: Modeling stomatal conductance in the earth system: linking leaf water-use efficiency and water transport along the soil-plant-atmosphere continuum, Geosci. Model Dev., 7, 2193–2222,, 2014.
Short summary
We implement a new stomatal conductance scheme within a land surface model coupled to a global climate model. The new model differs from the default in that it allows model parameters to vary by the different plant functional types, derived from global synthesis of observations. We show that the new scheme results in improvements in the model climatology and improves existing biases in warm temperature extremes by up to 10-20% over the boreal forests during summer.