Seminar on sediment parameterizations in 3D Baltic Sea models

Date:

2015-03-30 - 2015-03-30

Location:
Baltic Sea Centre, Stockholm, Sweden

Description:

Hagen Radtke from IOW is visiting Baltic Nest Institute and will give a seminar at the Baltic Sea Centre with the title: Extending the Baltic Sea ecosystem model ERGOM into the sediment - an early diagenetic modelling approach.

We are currently extending our ecological model ERGOM into the sediment.
The result will be a coupled ecosystem - early diagenesis model.
Although some processes are the same in the sediment and the water column,
several additional processes, especially concerning the iron cycle,
had to be added in the sediment to reproduce realistic pore water profiles.

This talk will illustrate three things:
- Our approach which processes and state variables to include to make the
 model able to realistically simulate diagenesis in sandy to muddy sediments
 with special focus on pH in the pore water
- Efficient numerical treatment of vertical diffusion, especially of oxygen,
 to allow for large time steps in spite of thin layers
- Automatic code generation as a method which allows efficient model development

The work is part of the project SECOS which aims at quantifying sedimentary
services (denitrification, retention, burial of nutrients) in the German
coastal areas.

You are welcome to join the seminar on March 30 2015, 11:00-12:00 in the Baltic Sea Centre conference room, Frescati Backe, 4th floor.

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Updated: 2015-03-24
Baltic Nest Institute Sweden
Baltic Sea Centre, Stockholm University
SE-106 91 Stockholm, Sweden, +46-8-16 37 18
Baltic Nest Institute Denmark
Aarhus University, Fredriksborgsvej 399
DK-4000 Roskilde, Denmark, +45 4630 1200
Baltic Nest Institute Finland
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FI-00251 Helsinki, Finland, + 358 20 610 123