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A Semi-Parametric Gap-Filling Model for Eddy Covariance CO2-Flux Time Series Data.

Jarvis, Andrew J. and Stauch, Vanessa J. (2006) A Semi-Parametric Gap-Filling Model for Eddy Covariance CO2-Flux Time Series Data. Global Change Biology, 12 (9). pp. 1707-1716. ISSN 1354-1013

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Abstract

This paper introduces a method for modelling the deterministic component of eddy covariance CO2 flux time series in order to supplement missing data in these important data sets. The method is based on combining multidimensional semi-parametric spline interpolation with an assumed but unstated dependence of net CO2 flux on light, temperature and time. We test the model using a range of synthetic canopy data sets generated using several canopy simulation models realized for different micrometeorological and vegetation conditions. The method appears promising for filling large systematic gaps providing the associated missing data do not overerode critical information content in the conditioning data used for the model optimization.

Item Type: Article
Journal or Publication Title: Global Change Biology
Additional Information: This paper is the first to introduce spline hypersurfaces as a robust eddy covariance data imputation methodology. The methodology as developed in this paper will also have many general applications in environmental data analysis and supplementation. Stauch was Jarvis' RA. RAE_import_type : Journal article RAE_uoa_type : Earth Systems and Environmental Sciences
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 2107
Deposited By: ep_importer
Deposited On: 08 Apr 2008 15:02
Refereed?: Yes
Published?: Published
Last Modified: 06 Sep 2013 18:23
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/2107

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