Real-time calculation method for regional seawater transparency

A technology of real-time calculation and transparency, applied in the direction of transmittance measurement, etc., can solve the problems of not being able to obtain transparency, and the human factors of the observer are greatly affected

Active Publication Date: 2019-08-06
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0002] At present, the measurement of seawater transparency for artificially released transparency discs is greatly affected by the cloudy weather and human factors of observers, especially the technical bottleneck of not being able to obtain transparency at night. Therefore, it is necessary to design a real-time calculation method for regional seawater transparency , can be suitable for day and night, objective and quantitative real-time calculation of regional seawater transparency

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  • Real-time calculation method for regional seawater transparency
  • Real-time calculation method for regional seawater transparency
  • Real-time calculation method for regional seawater transparency

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Embodiment Construction

[0070] Such as figure 1 As shown, the real-time calculation method of regional seawater transparency disclosed by the present invention comprises the following steps:

[0071] Step 1. Use the sea surface optical parameters and the optical parameters of the vertical seawater section to build a three-dimensional variational assimilation model, and then obtain the optical parameters of each layer of seawater in the region from the three-dimensional variational assimilation model. The sea surface optical parameters are retrieved from satellite data Obtained, the optical parameters of the single-point seawater vertical profile are obtained by measuring the detection equipment, and the optical parameters of the single-point seawater vertical profile are non-timed and non-fixed-point parameters;

[0072] Step 2, use the Monte Carlo method to simulate the underwater movement of photons, and then calculate the relative amount of upwelling light at the transparency disk;

[0073] Step ...

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Abstract

The invention provides a real-time calculation method for regional seawater transparency. The method comprises the steps that a 3D variation assimilation model is established by using a sea surface optical parameter and a seawater vertical profile optical parameter in a measurement point, and optical parameters of different layers of the seawater in a regional lattice point are obtained via the 3Dvariation assimilation model; photon underwater motion is simulated by a Monte Carlo method, and an upwelling light relative quantity in a transparency disc position is calculated, namely, the upwelling light relative quantity in the regional lattice point is obtained; and a contrast transmission equation is established, the calculated upwelling light relative quantity serves as an inherent contrast initial value of the contrast transmission equation, and the contrast transmission equation is solved to obtain the regional seawater transparency. The real-time calculation method for the regional seawater transparency can be used to calculate the regional seawater transparency objectively and quantitatively at day and night.

Description

technical field [0001] The invention relates to a real-time calculation method for transparency, in particular to a real-time calculation method for regional seawater transparency. Background technique [0002] At present, the measurement of seawater transparency for artificially released transparency discs is greatly affected by the cloudy weather and human factors of observers, especially the technical bottleneck of not being able to obtain transparency at night. Therefore, it is necessary to design a real-time calculation method for regional seawater transparency , which can be suitable for day and night, objective and quantitative real-time calculation of regional seawater transparency. Contents of the invention [0003] The purpose of the present invention is to provide a real-time calculation method for regional seawater transparency, which can be suitable for day and night, objective and quantitative real-time calculation of regional seawater transparency. [0004]...

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Application Information

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IPC IPC(8): G01N21/59
CPCG01N21/59
Inventor 陈希李妍毛科峰刘科峰郭海龙
Owner NAT UNIV OF DEFENSE TECH
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