Optimisation of integrated earth system model components using grid-enabled data management and computation


Price, A.R., Xue, G., Yool, A., Lunt, D.J., Valdes, P.J., Lenton, T.M., Wason, J.L., Pound, G.E., Cox, S.J. and GENIE team, The (2007) Optimisation of integrated earth system model components using grid-enabled data management and computation Concurrency and Computation: Practice and Experience, 19, (2), pp. 153-165. (doi:10.1002/cpe.1046).

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Description/Abstract

In this paper, we present the Grid enabled data management system that has been deployed for the GENIE Earth System Modeling project. The database system is an augmented version of the Geodise Database Toolbox and provides a repository for scripts, binaries and output data in the GENIE framework. By exploiting functionality available in the Geodise toolboxes we demonstrate how the database can be employed to tune parameters of coupled GENIE Earth System Model components to improve their match with observational data. A Matlab client provides a common environment for the project Virtual Organization and allows the scripting of bespoke tuning studies which can exploit multiple heterogeneous computational resources. We present the results of a number of tuning exercises performed on GENIE model components using multi-dimensional optimisation methods. In particular, we find that it is possible to successfully tune models with up to 30 free parameters using Kriging and Genetic Algorithm methods.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1002/cpe.1046
ISSNs: 1532-0626 (print)
Keywords: optimisation, grid, data management, earth system model, kriging, genetic algorithm
Subjects:
ePrint ID: 23514
Date :
Date Event
12 January 2005Submitted
February 2007Published
Date Deposited: 29 Mar 2006
Last Modified: 16 Apr 2017 22:45
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/23514

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