Observation system and method for resuspension quantity of deep-sea internal waves to seafloor sediments

Abstract

The invention discloses an observation system and determining method for the resuspension quantity of deep-sea internal waves to seafloor sediments. The observation system includes a seafloor observation platform, a cable and an anchoring tethered weight. The seafloor observation platform is equipped with an acoustic releaser, a single-point ocean current meter, a turbidimeter, a high-precision conductivity-temperature-depth instrument and a sediment capture device, and the cable is equipped with a main floating body and a sub floating body; a part, located at the middle of the cable, of the main floating body is equipped with an acoustic doppler current profiler; the sub floating body is provided with the turbidimeter and the high-precision conductivity-temperature-depth instrument; the anchoring tethered weight is a gravity anchor with a square-shaped clamping groove and a fixed ring. The determination method includes the steps: calibrating the instruments indoor, placing and recovering the observation system by an auxiliary ship, reading the data of the observation instrument and analyzing the composition of captured suspended matters, and determining the resuspension quantity of the internal waves to the sediments. The observation system can be placed on the deep sea bottom safely and steadily, and can observe the full-water-depth marine dynamic environment parameters fromthe seafloor to the sea surface, and determines the resuspension quantity of the internal waves to the sediments.

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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