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Using earth observation data to evaluate a land surface model in three Siberian catchments

Blyth, Eleanor; Clark, Douglas B.; Ellis, Richard; George, Charles. 2012 Using earth observation data to evaluate a land surface model in three Siberian catchments. Boreal Environment Research, 17 (6). 484-494.

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Abstract/Summary

In this paper, we analyse the ability of the JULES (Joint UK Land Environment Simulator) model to simulate the physical conditions in the terrestrial Arctic using satellite-based earth observation data products. Catchment-average seasonal surface temperatures and snow cover are constructed over the largest river basins of the Eurasian Arctic (the Ob, Lena and Yenisei) and compared with the modelled values. The results indicate that the modelled snow cover decreases too quickly in spring in all studied areas, and that the modelled surface temperature of snow-free areas is too high. There are several causes of uncertainty in both the model outputs and the earth observation products, and care has to be taken to ensure consistent use and sampling of the data. The results indicate that earth observation products provide important information that can assist in the diagnosis of problems in a land-surface model.

Item Type: Publication - Article
Programmes: CEH Topics & Objectives 2009 onwards > Water > WA Topic 3 - Science for Water Management > WA - 3.3 - Better represent hydrological and biogeochemical processes in Earth System Models
CEH Sections: Reynard
ISSN: 1239-6095
NORA Subject Terms: Hydrology
Date made live: 18 Sep 2012 13:18
URI: http://nora.nerc.ac.uk/id/eprint/19596

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