Multispectral Ecological Control of Parameters of Water Environments Using a Quadrocopter

The aim of the work is to improve the methods and means of environmental monitoring of the parameters of aqueous media using a quadrocopter with a multispectral camera. The process of indirect measurement of biomass and pigment parameters of phytoplankton in the near-surface layer of the water objects is investigated. Instrumental and methodical errors of indirect measurements in the near-surface layer of the aquatic environment with the use of the developed means of ecological control are analyzed. The effect of changes in the spectral characteristics of illumination was corrected with respect to the object with known spectral characteristics of the diffuse reflection coefficient. In the course of multiple regression, regression equations were obtained that allow determining biomass and pigment parameters of phytoplankton based on processing of multispectral images. An analysis of measurement errors was used when using the eight-channel multispectral cameras CMS. Optimal wavelengths of spectral channels and their number are selected from the condition of ensuring a minimum value of the total error.