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

被引：14
|
作者：
Piterbarg, Leonid I. [1 ]
机构：
[1] Univ So Calif, Dept Math, Los Angeles, CA 90089 USA
来源：
APPLIED MATHEMATICAL MODELLING | 2009年 / 33卷 / 09期
关键词：
Data fusion; Inverse problem; Surface velocities; Continuously distributed tracer; DRIFTER OBSERVATIONS; OCEAN CIRCULATION; ASSIMILATION; SEA; IMAGES; RECONSTRUCTION; DISTRIBUTIONS; EQUATION; CURRENTS; FIELD;
D O I：
10.1016/j.apm.2008.12.006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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. (C) 2008 Elsevier Inc. All rights reserved.
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页码：3693 / 3704
页数：12
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