Improved modelling of Siberian river flow through the use of an alternative frozen soil hydrology scheme in a land surface model

Finney, D.L.; Blyth, E.; Ellis, R.. 2012 Improved modelling of Siberian river flow through the use of an alternative frozen soil hydrology scheme in a land surface model. The Cryosphere Discussions, 6 (1). 309-340. 10.5194/tcd-6-309-2012

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Abstract/Summary

A parameterisation to incorporate the effects of frozen soil on modelled hydrology is described and implemented within a land surface model, the Joint UK Land Surface Environment Simulator. It is shown to generally improve the modelled flow of Siberian rivers compared to observations, specifically in seasons of freezing or thawing soil. Most noticeably, the revised model increases the snowmelt flow peak by 26–100% compared to the control model thereby better matching observed flows. The model physics resulting in the changes to river flow are discussed and attention is given to the effect of inaccuracies in snowfall driving data which can hinder the comparison of new model processes.

Item Type:	Article
Identification Number/DOI:	10.5194/tcd-6-309-2012
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:	1994-0432
Additional Information:	Open Access article - click on the Official URL link for full text
NORA Subject Terms:	Hydrology
Date made live:	02 Feb 2012 13:07
URI:	http://nora.nerc.ac.uk/id/eprint/16474

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