Device and method for acoustic imaging simulation of submarine hydrothermal plumes

Abstract

The invention discloses a submarine hydrothermal plume acoustic imaging simulation device and method. The device comprises a cylindrical reaction cabin for machininged from an acoustic transmission material, wherein at least three simulated fluid spraying nozzles which are coaxial with the reaction cabin and are distributed in an embedded manner are arranged at the outer side of a lower end cover of the reaction cabin; a plurality of water outlets are formed in a contact surface between the simulated fluid spraying nozzles and the lower end cover; each simulated fluid spraying nozzle corresponds to one a sample cabin and is communicated with the sample cabin through a guide pipe; each guide pipe is provided with a water pump; the sample cabins are used for containing water with different temperature and particulate matter concentration and the water is used as simulated fluid of submarine hydrothermal plume; an image sonar is arranged above or beside the reaction cabin. The device can be used for simulating an optical image of the submarine hydrothermal plume so that the adjustment of a submarine hydrothermal plume acoustic detection method and parameters is realized. The submarine hydrothermal plume acoustic imaging simulation device and method are applicable to researches of the submarine hydrothermal plume acoustic detection method and can be used for quantitatively and directly intuitively simulating acoustic response of the submarine hydrothermal plume. The submarine hydrothermal plume acoustic imaging simulation device and method can be widely applicable to scientific researches of a submarine hydrothermal system.

Description

technical field [0001] The invention belongs to the technical field of ocean detection, and relates to an acoustic imaging simulation device and method for a seabed hydrothermal plume flow. Background technique [0002] Submarine hydrothermal activity is a natural phenomenon on the seabed. As a global geological phenomenon, modern submarine hydrothermal system is the activity of lithosphere and hydrosphere in mid-ocean ridge spreading center, island arc, back-arc spreading center and intraplate. The product of matter and energy exchange in the center is the conduit connecting the deep part of the earth with the ocean. The hydrothermal plume formed by the mixture of hydrothermal fluid and seawater is an important form of material output in the deep earth, and is of great significance to the material cycle of the earth's lithosphere and ocean. The hydrothermal plume is an important window of the submarine hydrothermal system. The hydrothermal plume involves multiple disciplin...

AI Technical Summary

Problems solved by technology

Both of these two methods have a disadvantage. They cannot directly and effectively observe the dynamic changes of the hydrothermal plume, cannot directly and effectively determine the three-dimensional structure of the hydrothermal plume, and it is difficult to accurately measure the scale of the hydrothermal plume. The developmental state of hydrothermal activity cannot be accurately described

[0003] At present, marine scientists at home and abroad have used acoustic detection methods to detect hydrothermal plumes, but they are only qualitative descriptions, and the technical parameters for quantitative detection are not yet clear, and quantitative detection of submarine hydrothermal plumes has not yet been carried out.

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