28–31 Jan 2020
Museum am Rothenbaum
Europe/Berlin timezone

New forecast model for rotating shallow water dynamics in spherical geometry based on Hough functions decomposition

28 Jan 2020, 17:11
6m
Großer Hörsaal (Museum am Rothenbaum)

Großer Hörsaal

Museum am Rothenbaum

Rothenbaumchaussee 64 20148 Hamburg
Poster COMMODORE conference

Speaker

Sergiy Vasylkevych (UHH)

Description

We present a new forecast model for rotating shallow water equations in spherical geometry. The model is a horizontal component of numerical weather prediction system currently under development in theoretical meteorology group at the University of Hamburg. In contrast to the majority of spectral schemes, which employ spherical harmonics, our model uses Hough functions as the expansion basis. This represents the motion as a system of interacting waves that have a clear geophysical interpretation.

In the talk we discuss advantages and disadvantages of the model, present the convergence rates on analytical solutions, and model's performance on geophysically important complex flows.

Do you need an official invitation letter? No

Authors

Nedjeljka Žagar (UHH) Sergiy Vasylkevych (UHH)

Presentation materials

There are no materials yet.