Simulation of thermal and hydrological regimes of Siberian river watersheds under permafrost conditions from reanalysis data

Arzhanov, M. M., Eliseev, A. V., Demchenko, P. F., Mokhov, I. I. and Khon, Vyacheslav (2008) Simulation of thermal and hydrological regimes of Siberian river watersheds under permafrost conditions from reanalysis data Izvestiya Atmospheric and Oceanic Physics, 44 (1). pp. 83-89.

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Abstract

A one-dimensional dynamic model of heat and moisture transfer in the soil has been developed. The use of the ERA-40 reanalysis as input data makes it possible to compute characteristics of the soil thermal and hydrological regimes, including watershed runoff, from specified climatic characteristics of the atmosphere. Results are presented of numerical experiments on a comparison of the model estimates of the depths of seasonal thawing with observations at several Siberian stations. For the latter half of the 20th century, the depths of seasonal thawing are mapped and runoff from watersheds of the largest Siberian rivers is computed. The model reproduces observed runoff variations. For the Ob basin, the model-derived runoff estimates agree well with observational data if peat deposits in the upper 2-m layer are taken into account.

Document Type: Article
Research affiliation: OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
ISSN: 0001-4338
Projects: Future Ocean
Date Deposited: 15 Oct 2010 09:20
Last Modified: 27 Jan 2012 05:10
URI: http://eprints.uni-kiel.de/id/eprint/8946

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