Method for optimizing layout of lake, reservoir and river basin water quality monitoring cross section based on comprehensive layering clustering

Abstract

The invention belongs to the field of monitoring and control of water environments, and discloses a method for optimizing layout of a lake, reservoir and river basin water quality monitoring cross section based on comprehensive layering clustering. The method comprises the following steps of firstly, according to the originally collected water quality monitoring data, establishing a standard matrix, and calculating the similarity between the data variables by five distance algorithms, so as to obtain a close and distant relationship of the variables; automatically clustering a data set by four connecting algorithms; using a weighted Pearson correlation coefficient as a judging criterion to select the optimal combination for layering clustering; finally, generating a corresponding optimal clustering tree matrix to optimize and arrange a cross section monitoring station, so as to obtain the monitoring data for reflecting the whole water quality of the water domain, and improve the monitoring quality of the water environment. The method has the advantages that the convenience, simplicity and rapidity are realized, the result is visual, and the feasibility is higher.

Description

Technical field [0001] The invention belongs to the technical field of water environment monitoring and treatment, and relates to a method for optimizing the layout of water quality monitoring sections of lakes, reservoirs and river basins based on comprehensive hierarchical clustering. Background technique [0002] In recent years, in the field of water environment monitoring and treatment technology, how to optimize the layout of water quality monitoring sections has received extensive attention from researchers. Traditional lake-reservoir cross-section monitoring is arranged in accordance with the principle of equal distribution of the size of the water body area, that is, the lake and reservoir water area is divided into grids of fixed size (usually 2 square kilometers), and the measurement is placed at the center of each grid. point. Although this method is simple and easy to implement, it often results in similar water quality monitoring results in adjacent sections, resul...

AI Technical Summary

Problems solved by technology

But its disadvantage is that the choice of distance measurement method and connection method is relatively simple. For different data characteristics in different water areas, it is impossible to adaptively select the best method to obtain the optimal layout of water quality monitoring sections with the best effect.

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