Experimental studies of phytoplankton concentrations in water bodies by using of multispectral images

Abstract

The aim is to improve performance and reliability of monitoring of nutrient pollution from bioindication by phytoplankton and use of multispectral images. Actuality of the theme caused by the necessity development of new methods of monitoring the state of water bodies based on bioindication by phytoplankton. We improved method of environmental monitoring groundwater multispectral methods and conducted experimental studies of phytoplankton concentrations in water bodies. The paper analyzed the evaluation methods of ecological state of water bodies based on bioindication by phytoplankton and features experimental techniques. Comparison bioassay results wastewater using phytoplankton culture Scenedesmus subspicatus and experimental studies of pollutants specialized laboratory environmental inspection. For identification phytoplankton particles carried compare arrays of multispectral images obtained at characteristic wavelengths of phytoplankton pigments exemplary multispectral imaging using Bayesian classifier on discriminant function based on Mahalanobis distance. Through this increased accuracy of identifying particles of phytoplankton in comparison with classical algologically methods, based on visual comparison of images of phytoplankton particles obtained by the microscope, with exemplary images taken from inventories and determinants, and performance monitoring of the ecological state of water bodies increases by 10 ..20 times