Algae outbreak early warning method and system based on three-dimensional fluorescence detection

Abstract

The invention discloses an algae outbreak early warning method and system based on three-dimensional fluorescence detection, and relates to the technical field of three-dimensional fluorescence water quality detection. The method comprises the steps of data acquisition, data division, data preprocessing, principal component analysis, abnormal value screening, classification modeling and algae outbreak early warning. According to the method, the three-dimensional fluorescence data evolution of the monitored water area is divided according to the three-dimensional fluorescence region area integral, and the score distribution of the principal components of the three-dimensional fluorescence spectrum in the algae outbreak period of the monitored water area is determined, so that high-accuracy and rapid early warning of algae outbreak is realized in actual detection.

Description

technical field [0001] The invention relates to the technical field of three-dimensional fluorescent water quality detection, in particular to an algae outbreak early warning method and system based on three-dimensional fluorescent detection. Background technique [0002] The prevention and control of harmful algae is a key research direction of water pollution monitoring and control. Predicting algal blooms can effectively reduce aquaculture losses and avoid pollution of drinking water sources. Due to many factors affecting the growth of algae, the traditional nitrogen-to-phosphorus ratio prediction method has large errors; while the black-and-white bottle method for detecting respiration rate and primary productivity has the problems of long detection period and short warning period; three-dimensional fluorescence spectroscopy can effectively detect water bodies However, compared with the strong fluorescence of common organic substances in water such as tyrosine-like, tryp...

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Problems solved by technology

Due to many factors affecting the growth of algae, the traditional prediction method of nitrogen and phosphorus ratio has large errors; while the black and white bottle method for detecting respiration rate and primary productivity has the problems of long detection period and short early warning period; three-dimensional fluorescence spectroscopy can effectively detect water bodies Algae pigments and proteins, but compared with the strong fluorescence of common organic substances such as tyrosine, tryptophan, and humus, the fluorescence intensity of algae pigments and proteins is usually weak, and it is difficult to detect algae outbreaks based solely on algae fluorescence peaks. forecast in advance

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