Observation system and method of seabed sediment resuspension by deep-sea internal waves

Abstract

The invention discloses an observation system and a determination method for the amount of resuspension of seabed sediment by deep-sea internal waves. The observation system includes a seabed observation platform, cables and mooring counterweights. Meter, turbidimeter, high-precision temperature, salinity and depth meter and sediment trap. The main floating body and sub-floating body are installed on the cable. The main floating body is located in the middle of the cable and is equipped with an acoustic Doppler current profiler. and a high-precision temperature, salinity and depth gauge, and the mooring mooring counterweight is a gravity anchor with a square frame-shaped slot and a fixed ring. The determination methods include: indoor calibration of instruments, use of auxiliary ships to deploy and recover observation systems, reading observation instrument data and analyzing captured suspended matter components, and determining the amount of resuspension of sediment by internal waves. The invention can be safely and stably placed on the bottom of the deep sea, can realize the observation of marine dynamic environment parameters from the bottom of the sea to the full water depth of the sea surface, and can determine the amount of resuspension of sediment by internal waves.

Description

technical field [0001] The invention relates to the technical field of marine observation and the field of marine engineering geology, in particular to a system and method for observing the resuspension amount of seabed sediment by deep-sea internal waves. Background technique [0002] With the exploration and development of marine resources in my country, the deep seabed has increasingly become a strategic area of ​​concern to all countries in the world due to its vast space, rich resources and special political status, especially the research of complex deep sea oceans. Due to the limited data obtained by various traditional technical means, it is more difficult to observe the deep water environment, and human beings have very limited understanding of the multi-scale change process of the deep ocean, which restricts the ability to predict future development. Therefore, it is particularly important to collect in-situ comprehensive observation data of the full depth of the o...

AI Technical Summary

Problems solved by technology

At the same time, the observation of seabed sediments mostly relies on optical and acoustic instruments, which can only reflect the suspended concentration and lack the determination of quantitative parameters.

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