Andreas Stohl (Vienna): Atmospheric transport modeling and its applications

Montag, 15. April 2024 13:30

Ort: Lise-Meitner-Hörsaal, Strudlhofgasse 4, 1090 Wien

Vortrag im Rahmen des University of Vienna Physics Colloquiums

In this talk I will present the Lagrangian particle dispersion model FLEXPART, developed at UNIVIE, and applications of it. FLEXPART has a worldwide user community and calculates Lagrangian trajectories based on grid-scale winds as well as stochastic parametrizations of turbulence and convection. It can also account for radioactive decay, wet and dry deposition, gravitational settling and linear chemistry. The model has an active user community of probably several hundred research groups worldwide and is used operationally at several weather services and at CTBTO.

I will present a number of example applications: 1) Diagnosis of the role of heat and moisture transport during an extreme heat event; 2) Quantification of smoke transport into the Arctic; 3) Production of a Lagrangian re-analysis data set and its application diagnosing the impact of El Nino/Southern Oscillation on heat and moisture transport in the atmosphere; 4) Global-scale transport of microplastics; 5) Inverse modelling of greenhouse gas fluxes based on atmospheric observation data, at the example of sulfur hexafluoride.

A light lunch buffet will be offered before the lecture at around 13:00.


Lise-Meitner-Hörsaal, Strudlhofgasse 4, 1. Stock

Andreas Stohl (© Barbara Mair)