Atmosphere Ocean Science Student Seminar

Lagrangian Filtering for Balanced-Wave Separation in the Submesoscale

Speaker: Ryan Shijie Du, CAOS

Location: Warren Weaver Hall 1314

Date: Friday, October 15, 2021, 4 p.m.


The increase in resolution of ocean models and observations has revealed scales where both submesoscale balanced motion and Internal Gravity Waves coexist and interact. In order to analyze how each flow type affects transport, it is useful to decompose the flow into balanced and wave parts. Lagrangian Filtering is a new method for separating waves and balanced flows from data. I will explain this method and showcase its benefit and potential inaccuracies with two simple models: 1. Lee Waves over topographies and 2. geostrophic balanced motion + inertial oscillation.