Geosci. Model Dev. Discuss., 4, 595-640, 2011
www.geosci-model-dev-discuss.net/4/595/2011/
doi:10.5194/gmdd-4-595-2011
© Author(s) 2011. This work is distributed
under the Creative Commons Attribution 3.0 License.
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This discussion paper has been under review for the journal Geoscientific Model Development (GMD). Please refer to the corresponding final paper in GMD.
The Joint UK Land Environment Simulator (JULES), Model description – Part 1: Energy and water fluxes
M. J. Best1, M. Pryor2, D. B. Clark3, G. G. Rooney1, R. L. H. Essery4, C. B. Ménard4, J. M. Edwards1, M. A. Hendry1, A. Porson1, N. Gedney2, L. M. Mercado3, S. Sitch5, E. Blyth3, O. Boucher1, P. M. Cox6, C. S. B. Grimmond7, and R. J. Harding3
1Met Office, FitzRoy Road, Exeter, EX1 3PB, UK
2Met Office, JCHMR, Wallingford, UK
3Centre for Ecology and Hydrology, Wallingford, UK
4University of Edinburgh, Edinburgh, UK
5University of Leeds, Leeds, UK
6University of Exeter, Exeter, UK
7King's College London, London, UK

Abstract. This manuscript describes the energy and water components of a new community land surface model called the Joint UK Land Environment Simulator (JULES). This is developed from the Met Office Surface Exchange Scheme (MOSES). It can be used as a stand alone land surface model driven by observed forcing data, or coupled to an atmospheric global circulation model. The JULES model has been coupled to the Met Office Unified Model (UM) and as such provides an opportunity for the research community to contribute their research into world-leading operational weather forecasting and climate change prediction systems. JULES has a modular structure aligned to physical processes, providing the basis for a flexible modelling platform.

Citation: Best, M. J., Pryor, M., Clark, D. B., Rooney, G. G., Essery, R. L. H., Ménard, C. B., Edwards, J. M., Hendry, M. A., Porson, A., Gedney, N., Mercado, L. M., Sitch, S., Blyth, E., Boucher, O., Cox, P. M., Grimmond, C. S. B., and Harding, R. J.: The Joint UK Land Environment Simulator (JULES), Model description – Part 1: Energy and water fluxes, Geosci. Model Dev. Discuss., 4, 595-640, doi:10.5194/gmdd-4-595-2011, 2011.
 
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