28-31 January 2020
Museum am Rothenbaum
Europe/Berlin timezone

Plume-spreading test case for the coastal ocean models

30 Jan 2020, 14:30
30m
Großer Hörsaal (Museum am Rothenbaum)

Großer Hörsaal

Museum am Rothenbaum

Rothenbaumchaussee 64 20148 Hamburg
Talk COMMODORE conference

Speaker

Vera Fofonova (Alfred Wegener Institute for Polar and Marine Research)

Description

The current study provides a new test case for the coastal numerical solutions dedicated to the plume spreading in the estuary and on the shelf. The suggested estuary-shelf system represents a mixture between pronounced nonlinear flow dynamics with sharp frontal boundaries and linear dynamics and across-shore geostrophic balance. The major aspects of the plume dynamics are analytically predicted, but are difficult to reproduce numerically. The test case manifests the level of numerical diffusion, ability of the model to reproduce the nonlinear processes and frontal zone dynamics. Numerical solutions were obtained with three unstructured mesh models SCHISM, THETIS and FESOM-C. The current study also suggests the plume spreading analysis based on numerical results, which can be useful for any intercomparison studies with focus on the plume behavior.

Primary authors

Vera Fofonova (Alfred Wegener Institute for Polar and Marine Research) Ivan Kuznetsov (Alfred Wegener Institute for Polar and Marine Research) Tuomas Kärnä (Finnish Meteorological Institute) Alexey Androsov (Alfred Wegener Institute for Polar and Marine Research) Karen Helen Wiltshire (Alfred Wegener Institute for Polar and Marine Research)

Presentation Materials

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