Passive tracer dynamics in 4 point-vortex flow

Dynamics of a passive tracer in a velocity field of four identical point vortices

By S T E F A N E L L A B O A T T O1,2† AND R A Y M O N D T. P I E R R E H U M B E R T 1 James Franck Institute, University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637, USA 2 Computational and Applied Mathematical Center, Department of Mathematics, University of Chicago, 5734 S. University Ave, Chicago, IL 60637, USA 3 Department of Geophysical Sciences, University of Chicago, 5734 S. Elli...

Invariant Measures for Passive Tracer Dynamics in Ornstein-uhlenbeck Flows

The Dynamics of Point-Vortex Data Assimilation

Nonlocal Dynamics of Passive Tracer Dispersion with Random Stopping

We investigate the nonlocal behavior of passive tracer dispersion with random stopping at various sites in fluids. This kind of dispersion processes is modeled by an integral partial differential equation, i.e., an advection-diffusion equation with a memory term. We have shown the exponential decay of the passive tracer concentration, under suitable conditions for the velocity field and the pro...

Ozone/tracer relations in the polar vortex

Impact of mixing and chemical change on ozone-tracer relations in the polar vortex R. Müller, S. Tilmes, P. Konopka, J.-U. Grooß, and H.-J. Jost ICG I, Forschungszentrum Jülich, 52425 Jülich, Germany Bay Area Envrionmental Research Institute, Sonoma, CA, USA now at: ACD, NCAR, Boulder, CO, USA Received: 8 June 2005 – Accepted: 6 July 2005 – Published: 10 August 2005 Correspondence to: R. Müller...