A method for optimal analysis of fields with spatially-variable mean

Type Article
Date 1990-08
Language English
Author(s) Le Traon Pierre-Yves
Source Journal Of Geophysical Research-oceans (0148-0227) (Amer Geophysical Union), 1990-08 , Vol. 95 , N. C8 , P. 13543-13547
DOI 10.1029/JC095iC08p13543
WOS© Times Cited 59
Abstract This brief report addresses the problem of objective analysis of fields with spatially variable mean. Conventional objective analysis is confined to fluctuations, where the larger scale is assumed to be known; this report shows how to use the method described by Davis (1985) to estimate simultaneously a large-scale component and a mesoscale component with an accurate error budget. The extension to multivariate analysis is also discussed. The method is then applied to simulated data; this illustrates its contribution in relation to conventional objective analysis.
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