IMOGEN: an intermediate complexity model to evaluate terrestrial impacts of a changing climate

Huntingford, C.; Booth, B. B. B.; Sitch, S.; Gedney, N.; Lowe, J. A.; Liddicoat, S. K.; Mercado, L. M.; Best, M. J.; Weedon, G. P.; Fisher, R. A.; Lomas, M. R.; Good, P.; Zelazowski, P.; Everitt, A. C.; Spessa, A. C. and Jones, C. D. (2010). IMOGEN: an intermediate complexity model to evaluate terrestrial impacts of a changing climate. Geoscientific Model Development, 3(2) pp. 679–687.

DOI: https://doi.org/10.5194/gmd-3-679-2010

Abstract

We present a computationally efficient modelling system, IMOGEN, designed to undertake global and regional assessment of climate change impacts on the physical and biogeochemical behaviour of the land surface. A pattern-scaling approach to climate change drives a gridded land surface and vegetation model MOSES/TRIFFID. The structure allows extrapolation of General Circulation Model (GCM) simulations to different future pathways of greenhouse gases, including rapid first-order assessments of how the land surface and associated biogeochemical cycles might change. Evaluation of how new terrestrial process understanding influences such predictions can also be made with relative ease.

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