Multi-model cooperative water quality parameter concentration inversion method and device

Abstract

The invention provides a multi-model cooperative water quality parameter concentration inversion method and device, the method is as follows: constructing multiple candidate remote sensing inversion models by use of measured concentration and hyperspectral reflectance data of water quality parameters at a sampling point; calculating the comprehensive error of the candidate remote sensing inversion models; according to the comprehensive error, screening the candidate remote sensing inversion models to obtain multiple remote sensing inversion models; using bayesian model average method for weighted summation of the multiple remote sensing inversion models to obtain a water quality remote sensing collection inversion model; establishing an optimization model for calculation of weight and variance; solving the optimization model to obtain weight and variance of each remote sensing inversion model in the water quality remote sensing collection inversion model; using the water quality remote sensing collection inversion model with substituted weight for water quality parameter inversion to obtain water quality parameter concentration inversion value; and according to Monte Carlo method and the weight and the variance of each remote sensing inversion model, calculating the concentration inversion interval of the water quality parameters in the water quality remote sensing collection inversion model.

Description

technical field [0001] The invention relates to the technical field of water quality remote sensing monitoring, in particular to a multi-model coordinated water quality parameter concentration inversion method and device. Background technique [0002] Lake-reservoir-type water sources not only provide a large amount of water resources for human beings, but also have important ecosystem functions, and are an important component of the global carbon cycle and nutrient cycle. However, with the intensification of human activities, lake-type water sources are constantly threatened by organic and inorganic pollution, and water environment problems are becoming more and more serious. The management and protection of the water environment requires large-scale, continuous water quality monitoring to support, and conventional water quality monitoring mostly uses laboratory analysis methods, which is not only time-consuming and laborious, but also can only obtain the water quality stat...

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Problems solved by technology

[0004] The present invention provides a multi-model collaborative water quality parameter concentration inversion method and device to solve the problems of high uncertainty in the selection of remote sensing inversion models and model inversion existing in the inversion of water quality parameters in the prior art. The problem of poor stability of the inversion results of water quality parameters

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