A simple method for computing velocities from tracer observations and a model output

A method is suggested for estimating velocities by combining observations of a continuously distributed tracer and a circulation model output (background velocity field). A theoretical error analysis is provided and checked by simulations. The estimate reduces the model error by about 12–32% and the...

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Bibliographic Details
Published in:Applied mathematical modelling 2009-09, Vol.33 (9), p.3693-3704
Main Author: Piterbarg, Leonid I.
Format: Article
Language:English
Subjects:
Continuously distributed tracer
Data fusion
Dynamics of the ocean (upper and deep oceans)
Earth, ocean, space
Exact sciences and technology
External geophysics
Inverse problem
Physics of the oceans
Surface velocities
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Summary:A method is suggested for estimating velocities by combining observations of a continuously distributed tracer and a circulation model output (background velocity field). A theoretical error analysis is provided and checked by simulations. The estimate reduces the model error by about 12–32% and the estimation procedure turns out to be of high computational efficiency. In addition, a compatibility measure between data and model is introduced which is also tested by simulations.
ISSN:0307-904X
DOI:10.1016/j.apm.2008.12.006