2015-06-15 - 2015-06-19
Meet our researchers at the 10th Baltic Sea Science Congress and learn more about the recent results from the publicly available decision support system Baltic Nest. Baltic Nest Institute Sweden will be represented at the conference by the researchers Bärbel Müller-Karulis, Oleg Savchuk and Erik Gustafsson, that will present the Baltic Nest models and their applications. Bärbel Müller-Karulis will give a presentation about how hypoxia affects nutrient and phytoplankton dynamics in the Central Baltic Sea. Also, the effects of export of phosphorus from the Central Baltic Sea to neighboring basins will be discussed. June 16, 11:00. Oleg Savchuk will present the newly developed Simple As Necessary Fish model, SANFISH, that uses the output of the marine biogeochemical models SANBALTS and BALTSEM as forcings for simulation of combined effects of eutrophication, climate change, and fishery on a fish component of the entire Baltic Sea ecosystem. June 16, 16:20. Erik Gustafsson will show the latest results on total alkalinity in the Baltic Sea. Model calculations demonstrate that the total alkalinity in river loads and North Sea inflows are not by far sufficient to reproduce observed concentrations in the Baltic Sea. Large internal sources generating total alkalinity in the Baltic Sea enhances the sea's ability to buffer atmospheric CO2 and generate a significant carbon sink.
2015-05-06 - 2015-05-07
The scientific conference will be held in Malmö, Sweden on May 6-7, 2015. This symposium is organised by the three research programmes WATERS, DEVOTES and MARS. It is an arena for scientists and environmental managers to present and discuss the latest indicator development and assessment methods for ecological and environmental status of freshwater and marine ecosystems. Focus will be on the EU Water Framework Directive and EU Marine Strategy Framework Directive.
2015-03-30 - 2015-03-30
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.
2015-01-21 - 2015-01-23
The BONUS project COCOA (Nutrient cocktails in the coastal zone of the Baltic Sea) held its annual meeting in Helsinki in January 2015, with a strong participation from Baltic Nest Institute. The purpose of COCOA is to quantify the importance of the coastal zone as a filter for nutrients, from a Baltic perspective. The main role of BNI is to build up a database with information about all the coastal areas in the Baltic Sea and contribute with quantifications of its filter functions based on empirical data, measurement data and models. Links: COCOA at Baltic Nest Institutes web site COCOA project web site
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
Finnish Environment Institute, P.O. Box 140
FI-00251 Helsinki, Finland, + 358 20 610 123