The Baltic Sea and Lake Baikal underwater bio-optical fields simulation using ecodynamical model

The variability of the optical components concentration in water column has been simulated for coastal sea and deep lake basing on the ecosystem dynamic modeling concepts. Phytoplankton, zooplankton and bacterioplankton are included in the model as biological variables. The simulation of underwater optical field takes into account the impact of pure water, chlorophyll pigments absorption, optical features of the ‘yellow substance’ associated with dissolved organic matter and two fractions of the suspended matter. The model developed have been applied to simulate the spring bloom in the Gulf of Gdansk (Southern Baltic) along the transect and to describe annual ecosystem cycle in water column in Lake Baikal.