1995
DOI: 10.1357/0022240953213151
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Estimates of turbulence parameters from Lagrangian data using a stochastic particle model

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Cited by 66 publications
(44 citation statements)
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“…Actually, the model we apply is a straightforward generalization of models by Csanady [1974] and Griffa et al [1995] for the case of shear mean flow. The velocity of a particle is presented as a sum of a mean flow U and a "turbulent" velocity fluctuation u.…”
Section: Simulation Experimentsmentioning
confidence: 99%
“…Actually, the model we apply is a straightforward generalization of models by Csanady [1974] and Griffa et al [1995] for the case of shear mean flow. The velocity of a particle is presented as a sum of a mean flow U and a "turbulent" velocity fluctuation u.…”
Section: Simulation Experimentsmentioning
confidence: 99%
“…The most classical method was proposed by Taylor (1922), which, however, is quite sensitive to the asymptotic behavior of the autocorrelation at large time lags (Lumpkin et al 2002). Griffa et al (1995) tried to fit the autocorrelation with a known-shape curve prescribed by some parameters, so that the problems with the asymptotic behavior of autocorrelation could be avoided by only estimating the parameters. Davis (1987Davis ( , 1991 took into account the inhomogeneous velocity field, which is not applicable for Taylor's theorem, and made the estimation of diffusivity hold true for the shear mean flows (Zhurbas and Oh 2003).…”
Section: Introductionmentioning
confidence: 99%
“…In this paper we will use the terminology that is common in econometrics and apply our estimator to a stochastic volatility model. We emphasize also that similar problems arise in many other areas where the process of interest is modeled using an SDE, such as, for example, oceanography [18,1]. In such cases one is interested in estimating the eddy diffusivity from noisy Lagrangian observations.…”
mentioning
confidence: 88%
“…Introduction. Diffusion (Itô) processes are being used as models in many applications such as physics, biology, finance, and atmosphere/ocean science [4,15,18,24,31,33]. Some examples include the stochastic modeling of epidemics, the theory of derivative pricing, and stochastic modeling in oceanography.…”
mentioning
confidence: 99%
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