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

• Main Authors: Behrens, Jörn, Dethloff, Klaus, Hiller, Wolfgang, Rinke, Annette
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: 2000
• Subjects: Arctic
• 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

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.