2013
DOI: 10.1575/1912/5818
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Uncertainty quantification in ocean state estimation

Abstract: Quantifying uncertainty and error bounds is a key outstanding challenge in ocean state estimation and climate research. It is particularly difficult due to the large dimensionality of this nonlinear estimation problem and the number of uncertain variables involved. The "Estimating the Circulation and Climate of the Oceans" (ECCO) consortium has developed a scalable system for dynamically consistent estimation of global timeevolving ocean state by optimal combination of ocean general circulation model (GCM) wit… Show more

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Cited by 3 publications
(7 citation statements)
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“…Note that although the forward model is in steady state at all times, perturbations about this equilibrium are not steady and result in evolving uncertainties due to barotropic adjustment processes. Detailed time-resolving analysis of uncertainty evolution is beyond the scope of this paper and will be reported elsewhere (see also [17]). According to (22), either the prior or the posterior uncertainty of controls can be propagated forward.…”
Section: Results Shown For Six Hour Forward Uncertainty Propagationmentioning
confidence: 99%
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“…Note that although the forward model is in steady state at all times, perturbations about this equilibrium are not steady and result in evolving uncertainties due to barotropic adjustment processes. Detailed time-resolving analysis of uncertainty evolution is beyond the scope of this paper and will be reported elsewhere (see also [17]). According to (22), either the prior or the posterior uncertainty of controls can be propagated forward.…”
Section: Results Shown For Six Hour Forward Uncertainty Propagationmentioning
confidence: 99%
“…Different adjoint mechanisms are active on different time scales. A detailed discussion of adjoint uncertainty dynamics is beyond the scope of this paper and is found in [17]. Adding up all the quadrature uncertainty contributions results in the prior estimate of uncertainty of transport.…”
Section: Results Shown For Six Hour Forward Uncertainty Propagationmentioning
confidence: 99%
See 3 more Smart Citations