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(Article of periodic en Anglais - 2012)

Document title

A new method to determine the upper boundary condition for a permafrost thermal model : an example from the Qinghai-Tibet Plateau

Authors(s) and Affiliation(s)

ZHANG M. (1 2) ; MIN K.-H (2 3) ; WU Q. (1) ; ZHANG J. (1) ; HARBOR J. (2) ;
(1) State Key Lab. of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Inst., Chinese Academy of Sciences, Lanzhou, CHINE
(2) Dept. of Earth, Atmospheric, and Planetary Science, Purdue Univ., Lafayette, ETATS-UNIS
(3) Center for Atmospheric Remote Sensing, Kyungpook National Univ., Daegu, COREE, REPUBLIQUE DE

Abstract

The AA. report on an approach designed to predict time series of air, ground surface and shallow ground temperatures at a spatial scale for engineering design of a railway or highway project. The approach uses a regional-scale atmospheric model to downscale global climate model output, and then stepwise multiple regression to develop an equation that provides a best-fit prediction of site-specific observational data using bilinearly interpolated output from the atmospheric model. This approach bridges the scale difference between atmospheric climate models and permafrost thermal models, and allows for a wider range of factors to be used in predicting the thermal boundary condition. For a research site located in Beiluhe, close to the Qinghai-Tibet Railway, a comparison of model predictions with observational data not used in the construction of the model shows that this method can be used with a high degree of accuracy to determine the upper boundary condition for a permafrost thermal model

Source

Article of periodic

published at : Permafrost and periglacial processes / ISSN 1045-6740 / CODEN PEPPED

Editor : Wiley, Chichester - ROYAUME-UNI (1990)

Millesime : 2012, vol. 23, no4 [pp. 301-311]

Bibliographic references : 1 p.

Collation : 12 fig., 3 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/ppp.1755

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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