EN
Multispectral scanners on board satellite produce data available for estimating surface concentrations of chlorophyll pigments and other substances in sea watera.Assimilation of the information in models of plankton dynamics is necessary for understanding the vertical structure of primary production, calculation of integral characteristics, for as well as interpolation and forecasts.The algorithms for determining chlorophyll and other substances in seawater by multispectral observations are discussed.A number of assimilation procedures of such data are presented both as simple statistical models as models using a fundamental relationship between hydrophysics, plankton dynamics and hydrooptical processes.Models of the vertical distribution of chlorophyll pigment concentration and three-dimensionall models of population dynamics are discussed.