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The formation of small scale filaments in a novel two-dimensional adaptive tracer transport modelis investigated. The numerical model is based on a semi-Lagrangian advection scheme, and anadaptively and locally refined triangular mesh. The adaptive modelling approach allows very highlocal resolution, showing fine grained filamentation under the influence of gradients in the wind field.Wind data for the tracer transport experiment are taken from the high-resolution regional climatemodel for the Arctic atmosphere, HIRHAM. The influence of horizontal advection model resolutionand varying wind data resolution has been investigated.
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Behrens et al. (2000) studied this question.
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