Evolution of Small-Scale Filaments in an Adaptive Advection Model for Idealized Tracer Transport

The formation of small-scale filaments in a novel two-dimensional adaptive tracer transport model is investigated. The numerical model is based on a semi-Lagrangian advection scheme, and an adaptively and locally refined triangular mesh. The adaptive modeling approach allows very high local resoluti...

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Bibliographic Details
Main Authors: Behrens, Jörn, Dethloff, Klaus, Hiller, Wolfgang, Rinke, Annette
Format: Article in Journal/Newspaper
Language:unknown
Published: 2000
Subjects:
Online Access:https://epic.awi.de/id/eprint/15151/
https://doi.org/10.1175/1520-0493(2000)128<2976:EOSSFI>2.0.CO;2
https://hdl.handle.net/10013/epic.25336
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Summary:The formation of small-scale filaments in a novel two-dimensional adaptive tracer transport model is investigated. The numerical model is based on a semi-Lagrangian advection scheme, and an adaptively and locally refined triangular mesh. The adaptive modeling approach allows very high local 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 climate model for the Arctic atmosphere, HIRHAM. The influence of horizontal advection model resolution and varying wind data resolution has been investigated.