A real-time calculation method of regional seawater transparency

A real-time calculation and transparency technology, which is applied in the direction of transmittance measurement, etc., can solve the problems that observers are greatly influenced by human factors and cannot obtain transparency, and achieve the effect of an effective real-time calculation method

CN110095437BActive Publication Date: 2022-01-07NAT UNIV OF DEFENSE TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2022-01-07

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Abstract

The invention provides a real-time calculation method for the transparency of regional seawater, the steps include: constructing a three-dimensional variational assimilation model by using the optical parameters of the sea surface and the optical parameters of the vertical section of the seawater at the measurement point, and then obtaining the seawater of the regional grid point by the three-dimensional variational assimilation model The optical parameters of each layer; the Monte Carlo method is used to simulate the underwater movement of photons, and then the relative amount of upwelling light at the transparency disk is calculated, that is, the relative amount of upwelling light at the regional lattice point is obtained; the contrast transfer equation is established, and the calculated upwelling light The relative amount of surge light is used as the initial value of the inherent contrast in the calculation of the contrast transfer equation, and the transparency of the regional seawater is obtained by solving the contrast transfer equation. The real-time calculation method of seawater transparency in this area can be suitable for day and night, and objectively and quantitatively calculate the seawater transparency of the area.
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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] ...

Examples

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 ...