Journal
SPATIAL STATISTICS CONFERENCE 2015, PART 1
Volume 26, Issue -, Pages 127-130Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.proenv.2015.05.015
Keywords
functional PCA; dimension reduction; bivariate functions; spatial-temporal variations
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Funding
- NERC [NE/J022810/1] Funding Source: UKRI
- Direct For Mathematical & Physical Scien
- Division Of Mathematical Sciences [1107046] Funding Source: National Science Foundation
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Functional principal component analysis is used to investigate a high-dimensional surface water temperature data set of Lake Victoria, which has been produced in the ARC-Lake project. Two different perspectives are adopted in the analysis: modelling temperature curves (univariate functions) and temperature surfaces (bivariate functions). The latter proves to be a better approach in the sense of both dimension reduction and pattern detection. Computational details and some results from an application to Lake Victoria data are presented. (C) 2015 The Authors. Published by Elsevier B.V.
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