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Optimal perturbation
A perturbation that is intended to produce the largest (optimal) change to a forecast measure J. For example, if J is a measure of forecast error, an optimal perturbation δx could represent a change to the forecast's initial conditions designed to minimise forecast error, given a constraint that δx has magnitude comparable to the typical analysis errors of operational forecast models. See adjoint sensitivity.
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- Part of Speech: noun
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- Industry/Domain: Weather
- Category: Meteorology
- Company: AMS
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