Disagreement between Hydrological and Land Surface models on the water budgets in the Arctic: why is this and which of them is right?

Eleanor Blyth, NERC Natural Environment Research Council, Swindon, SN2, United Kingdom, Alberto Martinez-de la Torre, CEH, Centre for Ecology and Hydrology, Wallingford, United Kingdom, Richard Ellis, NERC center for Ecology and Hydrology, Oxfordshire, United Kingdom and Emma Robinson, NERC Natural Environment Research Council, Swindon, United Kingdom