Articles | Volume 22, issue 6
Hydrol. Earth Syst. Sci., 22, 3295–3309, 2018
https://doi.org/10.5194/hess-22-3295-2018

Special issue: Understanding and predicting Earth system and hydrological...

Hydrol. Earth Syst. Sci., 22, 3295–3309, 2018
https://doi.org/10.5194/hess-22-3295-2018

Research article 13 Jun 2018

Research article | 13 Jun 2018

On the appropriate definition of soil profile configuration and initial conditions for land surface–hydrology models in cold regions

Gonzalo Sapriza-Azuri et al.

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Cited articles

Alexeev, V. A., Nicolsky, D. J., Romanovsky, V. E., and Lawrence, D. M.: An evaluation of deep soil configurations in the CLM3 for improved representation of permafrost, Geophys. Res. Lett., 34, L09502, https://doi.org/10.1029/2007GL029536, 2007. 
Bastidas, L. A., Hogue, T. S., Sorooshian, S., Gupta, H. V., and Shuttleworth, W. J.: Parameter sensitivity analysis for different complexity land surface models using multicriteria methods, J. Geophys. Res., 111, D20101, https://doi.org/10.1029/2005JD006377, 2006. 
Brunke, M., Broxton, P., Pelletier, J., Gochis, D., Hazenberg, P., Lawrence, D., Leung, L., Niu, G., Troch, P., and Zeng, X.: Implementing and Evaluating Variable Soil Thickness in the Community Land Model, Version 4.5 (CLM4.5). J. Climate, 29, 3441–3461, https://doi.org/10.1175/JCLI-D-15-0307.1, 2016. 
Connon, R. F., Quinton, W. L., Craig, J. R., and Hayashi, M.: Changing hydrologic connectivity due to permafrost thaw in the lower Liard River valley, NWT, Canada, Hydrol. Process., 28, 4163–4178, https://doi.org/10.1002/hyp.10206, 2014. 
DeBeer, C. M., Wheater, H. S., Quinton, W., Carey, S. K., Stewart, R., MacKay, M., and Marsh, P.: The changing cold regions network: Observation, diagnosis, and prediction of environmental change in the Saskatchewan and Mackenzie River basins, Canada, Sci. China-Earth Sci., 58, 46–60, 2015. 
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Short summary
Arctic and subarctic regions are amongst the most susceptible regions on Earth to climate change. There, models require a proper representation of the interactions between climate and hydrology. Typically these model represent the soil with shallow depths, whereas for cold regions, deep soil is needed. To address this, we run model experiments to characterize the effect of soil depth and temperature soil initialization. Our results demonstrate that 20 m of soil profile is essential.