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A Method for Obtaining Water Acoustic Field Characteristic Data Based on High-Resolution Ocean Reanalysis Products

A high-resolution, characteristic data technology, applied in the analysis of materials, the use of sound waves/ultrasonic waves/infrasonic waves for material analysis, instruments, etc., can solve the waste of manpower, the accuracy, range, timeliness, and reliability of marine environmental data cannot be fully obtained Guarantee, wasting time and other issues, to achieve the effect of improving acquisition efficiency and accuracy

Active Publication Date: 2021-03-12
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0003] Since marine environmental data will change greatly with time, space and other factors, it is a waste of time, manpower and material resources to conduct continuous measurement directly point by point; the accuracy, range and timeliness of marine environmental data obtained by using the hydroacoustic inversion method , reliability cannot be fully guaranteed

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  • A Method for Obtaining Water Acoustic Field Characteristic Data Based on High-Resolution Ocean Reanalysis Products
  • A Method for Obtaining Water Acoustic Field Characteristic Data Based on High-Resolution Ocean Reanalysis Products
  • A Method for Obtaining Water Acoustic Field Characteristic Data Based on High-Resolution Ocean Reanalysis Products

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Embodiment Construction

[0044] The invention will be described in detail below in conjunction with specific embodiments.

[0045] A method for obtaining hydroacoustic field characteristic data based on high-resolution ocean reanalysis products, wherein high-resolution ocean reanalysis products include longitude, latitude, seawater temperature, salinity, and water depth data of global sea areas; hydroacoustic field characteristic data include deep-sea convergence Area distribution data, the deep-sea convergence area refers to the sound wave emitted by the sound source near the sea surface is refracted in the deep sea and reversed, and returns to the sea surface at a distance of 60km to 70km, forming a ring-shaped high-sound intensity area;

[0046] The steps of obtaining the deep-sea convergence area specifically include the following steps:

[0047] (1) Provide longitude, latitude and seawater temperature, salinity, and water depth data of global sea areas with high-resolution ocean reanalysis produc...

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Abstract

The invention belongs to the technical field of ocean acoustics application of three-dimensional temperature, salt and depth data, and in particular relates to a method for acquiring water acoustic field characteristic data based on high-resolution ocean reanalysis products. Provide data of global sea areas with high-resolution ocean reanalysis products, and use the sound velocity formula to convert seawater sound velocity profile data in specific sea areas; obtain seawater sound velocity profile change data at different depths in specific sea areas in a certain cycle; use the above data to obtain specific sea areas Seawater sound velocity distribution data, and sound source location data; the invention is used to obtain large-scale, long-sequence, and dynamic ocean water acoustic field characteristic data; form information from marine environment data to underwater acoustic environment and its data products link; with the help of the global characteristics of ocean reanalysis products, it can effectively improve the acquisition efficiency and accuracy of hydroacoustic field characteristic data in wide-area sea areas; realize efficient parallel computing of hydroacoustic field data sets under mesoscale conditions.

Description

technical field [0001] The invention belongs to the technical field of ocean acoustics application of three-dimensional temperature, salt and depth data, and in particular relates to a method for acquiring water acoustic field characteristic data based on high-resolution ocean reanalysis products. Background technique [0002] The marine acoustics application demonstration technology based on the three-dimensional temperature, salt and depth data mainly includes the construction of the spatio-temporal statistical data set of the characteristic quantity of the sound velocity profile and the analysis of the hydroacoustic field characteristics of the oceanic mesoscale vortex. Among them, the spatial-temporal statistical data set of sound velocity profile features mainly relies on the CORA (ChinaOceanReanalysis) reanalysis product, and the data of this product comes from the National Oceanographic Information Center; the temporal-spatial characteristic statistics of underwater ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/024
Inventor 肖汶斌王勇献刘巍程兴华王得志张理论
Owner NAT UNIV OF DEFENSE TECH
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