Cruising ADCP data quality analysis and reprocessing system

Abstract

The invention discloses a cruising ADCP data quality analysis and reprocessing system which consists of an information database, a visualized data processing terminal and a cruising ADCP data reprocessing function module. The information database stores flow speed data detected by a cruising ADCP, bottom tracking data, GPS longitude and latitude data, geostrophic flow data detected by an AVISO satellite altitude meter, other fixed-point flow speed observation data and high-resolution tidal stream data simulated in a global tide way. The visualized data processing terminal has data analysis anddrawing functions. The cruising ADCP data reprocessing function module comprises an ecological plankton module, a suspended matter research module and a spectral analysis module. The cruising ADCP data quality analysis and reprocessing system has the advantages of being visual, simple, clear, easy to operate and good in pertinence and can overcome the shortcomings of big difficulty, low efficiency, lots of errors and low data quality level of an existing cruising ADCP in data processing work.

Description

technical field [0001] The invention relates to the field of marine data analysis, and more specifically, relates to a navigation ADCP data quality analysis and reprocessing system. Background technique [0002] Acoustic Doppler Velocity Profiler (ADCP) can realize the acquisition of continuous and high-frequency flow velocity and flow direction information at different depth layers, and then realize the accurate determination of flow direction and intensity. Compared with traditional flow rate and direction measurement equipment, ADCP has the advantages of fast measurement speed, high precision, and the ability to obtain three-dimensional flow field information. It is currently the most effective method for measuring multi-layer ocean current profiles in the world, and is widely used in marine surveys, ocean engineering, etc. In this field, domestic and foreign oceanographers have done a lot of research on the data processing of ADCP. [0003] However, there are still the ...

AI Technical Summary

Problems solved by technology

[0004] Although the laboratory accuracy of ADCP is very high, the actual situation depends to a large extent on objective factors such as marine environmental conditions. For ADCP under navigation, since the ship is in constant motion, it is inevitable that the actual flow of the ocean current will be affected. These factors make the data processing of ADCP quite complicated

[0005] At present, the data post-processing and quality control of ADCP have not yet formed a unified and general specification and standard

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