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Marine hydrological parameter observation towed body

A hydrological parameter and marine technology, applied in underwater operation equipment, transportation and packaging, ships, etc., can solve the problems that the physical characteristics of seawater and flow velocity cannot be observed synchronously, and the flow velocity cannot be measured, so as to improve the horizontal resolution and enrich the investigation effect of means

Active Publication Date: 2013-02-27
SECOND INST OF OCEANOGRAPHY MNR
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Problems solved by technology

However, none of these drag bodies have the function of measuring the flow velocity, and cannot realize the simultaneous observation function of the physical characteristics of seawater and the flow velocity.

Method used

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  • Marine hydrological parameter observation towed body
  • Marine hydrological parameter observation towed body
  • Marine hydrological parameter observation towed body

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Embodiment example

[0034] The observation area is the waters near the Luzon Strait, and the purpose of the observation is the specific method and intensity of the Kuroshio invasion of the South China Sea. It is necessary to observe the temperature, salinity and current velocity structure of the shallow water layer below 400 meters. The survey vessel is equipped with a navigation ADCP, but due to objective reasons such as poor sea conditions and high sea water cleanliness in this sea area, the effective observation depth does not exceed 300 meters. The ADCP observation profile of the drag body is upward, and the temperature and salt sensors are installed at equal intervals on the lowered steel cables.

[0035] Synchronize the ADCP of the towing body with the observation time of the navigation ADCP, and combine the navigation GPS data to obtain the flow velocity observation value of the towing body. In this way, the temperature, salt and flow velocity structure of the shallow water layer below 40...

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Abstract

The present invention discloses a marine hydrological parameter observation towed body, comprising a bracket fixed with an instrument cabin. The front of the bracket is connected with a wirerope. The top of the bracket front is provided with a front wing with downward inclination. The top of the bracket back is provided with a back wing with upward inclination. The right and left sides of the latter part of the bracket are respectively provided with a body wing with upward inclination. The front inferior of the bracket is provided with a counterweight rack. The instrument cabin inside uses a gravitational self-balancing system to hang ADCP. CTD is fixed at the front of the instrument cabin through an attaching clamp. The wire rope is installed with temperature sensors and salinity sensors with equal intervals. The towed body of the invention combines the position seawater physical characteristic observation and stream measurement in sail, and can observe surface, bottom, or middle seawater flow rate by using a horizontal sliding manner as required. Choppy observation of profile temperature and salt structure may be performed. While the horizontal resolution of the seawater physical parameters is improved, the function of observation for seawater physical parameter profile by stop-ship to put instruments down is achieved.

Description

technical field [0001] The invention relates to a marine environment monitoring instrument, in particular to a drag body for observing seawater flow velocity and physical characteristics. Background technique [0002] At present, the observation of ocean temperature and salinity is generally carried out by stopping the ship and lowering the observation instruments, and only the profile data of one observation point can be obtained. The hydrology obtained by this observation method has low spatial resolution, especially when observing the front in the ocean, there are relatively large defects, and it is necessary to stop the ship for observation, which consumes the time of the ship and is uneconomical. Traditional measurement of current velocity generally adopts submerged buoy or sailing two observation methods. Submersible buoy observation can use current meter or Acoustic Doppler Current Profiler (Acoustic Doppler Current Profiler, ADCP), which can measure the fixed depth l...

Claims

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Application Information

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IPC IPC(8): B63C11/52
Inventor 杨成浩许东峰陈洪王俊徐鸣泉师鹏飞章胜亮
Owner SECOND INST OF OCEANOGRAPHY MNR
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