Objectives

The main objective of WP4 is to analyse thoroughly physical processes that control propagation of toxic compounds (TC) in the bottom sediments – seawater system and develop a 3D numerical model capable to forecast TC migrations. Following physical processes are to be addressed:

• Deep-water circulation in the Baltic sea and adjacent part of the North Sea its mesoscale variability related to inter-basins exchange and inflow events;
• Formation of subsurface mesoscale cyclonic eddies with inflow events and its role in deep water ventilation;
• Vertical (diapycnal) mixing due to small-scale turbulence;
• Horizontal (isopycnal) mixing due to mesoscale eddies;
• Combined (isopycnal and diapycnal) mixing due to double-diffusive and baroclinic interleaving;
• Re-suspension of bottom sediments due to bottom boundary layer turbulence
• Sedimentation of suspended matter due to settling velocity.

Partner in charge

Shirshov Institute of Oceanology - Atlantic Branch (SIO)

• Vadim Pak
• Emelian Emelyanov
• Victor Zhurbas