Institut für Ostseeforschung Warnemünde
IOW Logo

Rahel Vortmeyer-Kley - Projects

Current project: UDEMM - Hydrodynamic observations and simulations of munition in the sea

Hydrodynamic observations and simulations of munition in the sea is a subproject of the collaborative project "Environmental monitoring for the delaboration of munition in the sea" (UDEMM).

My task in this project is the investigation of organizing structures in the flow in the western Baltic Sea applying Finite Time Lyapunov Exponents and Lagrangian averaged vorticity deviation to estimate the lifetime of the structures and their possible impact on the distribution of dissolved TNT.

Finished project (PhD project): The distribution and dynamics of eddies in the Baltic Sea and their impact on physical and biological processes

Eddies play a central role in the dynamics of ocean currents. They are involved in mixing processes or can act as incubators for algae blooms, as they trap, for example, nutrients, thus bringing optimal conditions for algae blooms. As algae blooms occur in the Baltic Sea regularly, we are interested in identifying eddies, tracking them and estimating their lifetime. We use certain features of the flow to define the eddy. These can be referred to as organizing structures of the flow and have either attracting (collecting) properties or repelling (separating) properties. The collecting properties are used to determine eddy cores. The separating properties are used to define eddy boundaries.
The aim is to answer the question whether and how eddies affect algae blooms in the Baltic Sea.

My Working Group: Physical Oceanography

BMBF-Verbundprojekt HyMeSiMM: Umweltmonitoring für die Delaboration von Munition im Meer