Remote sensing retrieval method for concentration of particulate organic carbon of turbid water body

Abstract

The invention discloses a remote sensing retrieval method for a concentration of particulate organic carbon of a turbid water body, belonging to the field of remote sensing retrieval of water quality parameters. The remote sensing retrieval method comprises the following steps: acquiring the concentration of water body suspended matters on a surface layer of a research region, the concentration of particulate organic carbon (POC) and data of particle size distribution (PSD) of the suspended matters; acquiring field remote sensing reflectivity and a research region remote sensing image; and processing field remote sensing spectroscopic data so as to acquire a sensitive band of the remote sensing retrieval, establishing a statistical relation among the concentration of particulate organic carbon, the concentration of the suspended matters and the particle size distribution of particulate matters, a remote sensing retrieval model of the concentration of the suspended matters and a remote sensing retrieval model of the particle size distribution, and combining the statistical relation and the two models so as to establish a remote sensing retrieval method for particulate organic carbon based on the concentration and particle size distribution of the suspended matters. According to the remote sensing retrieval method for the concentration of particulate organic carbon of the turbid water body, the physical base of the remote sensing retrieval model can be directly reflected, and the precision of remote sensing retrieval can be improved.

Description

technical field [0001] The invention relates to a remote sensing inversion method for particle organic carbon concentration in turbid water bodies, which is suitable for remote sensing inversion of particulate organic carbon (Particulate Organic Carbon, POC) in the surface layer of second-type turbid water bodies, and belongs to the technical field of remote sensing inversion of water quality parameters. Background technique [0002] The acquisition of water quality parameters based on remote sensing technology is a process of inverting the water quality parameters of a certain area in the form of remote sensing images based on the relationship model between remote sensing signals and optically active substances in water bodies. It has been widely used in many fields such as water resources management and water environment protection, and provides scientific decision-making basis for relevant departments. [0003] At present, obtaining water quality parameters based on remot...

AI Technical Summary

Problems solved by technology

[0006] The traditional remote sensing inversion method of particulate organic carbon concentration directly establishes a relationship model through remote sensing reflectance and water POC concentration to invert POC concentration, but this method has no clear physical meaning and low accuracy

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