Mathematical modeling of the distribution of nutrients and the dynamics of phytoplankton populations in the Azov Sea, taking into account the influence of salinity and temperature

The purpose of this work is a mathematical modeling of the distribution of nutrients taking into account the dynamics of phytoplankton populations and the influence of salinity and temperature. The goals of this work: the development of the mathematical model of phytoplankton populations dynamics, taking into account the transport and transformation of biogenic substances; obtaining stationary modes for the case of a spatially uniform distribution of substances; restoration of salinity and temperature fields; modeling of nutrient distribution taking into account the obtained results. Stationary regimes were obtained under the assumption that the development of phytoplankton is limited by a single nutrient - phosphorus, nitrogen or silicon. The modified Laplace equation was used to improve the order of accuracy of recovery of salinity and temperature fields. The distribution of pollutant (nitrogen), affecting the development of harmful blue-green algae, has been obtained.