JP2008191111A - Undersea carbon dioxide diffusion sensing device, and undersea fluid sensing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide undersea carbon dioxide diffusion sensing device and undersea fluid sensing device for accurately deriving the carbon dioxide diffusion conditions of undersea layer at a prescribed depth. <P>SOLUTION: In these devices, carbon dioxide data from a transmission means 17 of data carrier 12 to be towed by the undersea layer at a prescribed depth is sent to a receiver 9 of a towing object 5, the carbon dioxide data are transmitted from the receiver 9 of the towing object 5 to an oceanic towing object 4 via a communication cable 33, and then the carbon dioxide data is sent by a radio means 7 from the oceanic towing object 4 to a ship 1, that derives the dilution of carbon dioxide, distribution of diffusion, and condition of behavior; and moreover, the carbon dioxide data can be transmitted/received in stabilized conditions, without being affected by noise from the ship 1 and also by wave around the sea level, to accurately detect behavior of the discharged carbon dioxide, even in the intermediate layer of ocean. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an underwater carbon dioxide diffusion detection device for grasping the diffusion state of carbon dioxide released to the middle ocean layer, for example.

  The present invention also relates to an underwater fluid detection device for grasping the state of spring water or jet water from the seabed, for example.

  In recent years, from the viewpoint of global warming, the sequestration of recovered carbon dioxide has been studied, and when isolating carbon dioxide into the ocean, the shape of the discharge tube and the pressure at the discharge site are optimally determined. (For example, see Patent Document 1 below). In addition, the state of dilution of carbon dioxide isolated in the ocean and the state of dilution in the ocean of carbon dioxide leaked and isolated by storage of carbon dioxide in the ocean floor Doing is useful for setting effective sequestration methods for carbon dioxide and for grasping environmental changes.

  For this reason, it is important to grasp and predict the diffusion behavior and the influence range of carbon dioxide isolated in the ocean and carbon dioxide leaked by being isolated by storage of the carbon dioxide submarine underlayer. In the ocean, tracking and understanding using fluorescent dyes and buoys are considered effective for understanding the flow and diffusion phenomena of matter. However, there is currently no technology for accurately tracking and grasping the middle layer of the ocean (for example, about 1000 m to 3000 m), and the diffusion behavior and influence range of carbon dioxide are accurate in the middle layer of about 1000 m to 3000 m. In fact, an effective device that can be grasped and predicted is desired.

  In addition, detecting the state of hot water or the like that erupts from the seabed is useful for understanding the ecosystem of seabed organisms. Furthermore, detecting the state of radiation (radon) in spring water that springs from the seabed is useful for grasping crustal deformation and can be used as an index for earthquake prediction. Furthermore, carbon dioxide is sometimes contained in hot water ejected from the seabed, and detecting the diffusion status of carbon dioxide such as hot water is useful for understanding the dilution status of ejected carbon dioxide. is there.

  However, as in the case of sequestration of carbon dioxide into the ocean and the submarine substratum, there is currently no technology established to accurately grasp the state of spring water and erupting water in the middle ocean layer, The actual situation is that an effective device capable of grasping and predicting the behavior of spring water and jet water from the seabed in the middle layer of about 1000m to 3000m is desired.

JP 2000-70702 A

  The present invention has been made in view of the above situation, and even if it is the middle layer of the ocean, the behavior of carbon dioxide that has leaked out of the ocean floor or carbon dioxide that has been isolated from the ocean floor or stored in the ocean bottom layer is stored. An object of the present invention is to provide an underwater carbon dioxide diffusion detection device capable of accurately detecting.

  Another object of the present invention is to provide an underwater fluid detection device capable of accurately detecting the behavior of a fluid that has springed out or spouted from the seabed even in the middle layer of the ocean. And

  In order to achieve the above object, an apparatus for detecting carbon dioxide diffusion in the sea according to claim 1 of the present invention is provided between a ship navigating offshore and a ship towed by the ship and grasping the current position on the earth. An offshore towed vehicle that communicates, an underwater transponder that collects carbon dioxide data that is towed from the ship into the sea at a predetermined depth and that transmits the collected carbon dioxide data, and an underwater response that is towed from the ship into the sea Based on the data of the carbon dioxide sent to the offshore towed body from the transmitting / receiving means by the communication cable and the transmission / reception means to receive the data of the carbon dioxide in the sea from the vessel to the offshore towed body via the communication cable And carbon dioxide deriving means for deriving the diffusion state of carbon dioxide in a predetermined underwater layer.

  In the present invention according to claim 1, the carbon dioxide data from the underwater transponder towed to the sea layer at a predetermined depth is sent to the transmission / reception means, and the carbon dioxide data is transmitted from the transmission / reception means to the offshore towed body via the communication cable. Data is transmitted, and the carbon dioxide diffusing state is derived by a carbon dioxide deriving unit. Since the transmission / reception means is towed in the sea, the influence of ship noise can be suppressed, and the influence of waves in the vicinity of the sea surface is eliminated, so that carbon dioxide data can be transmitted and received in a stable state.

  And the underwater carbon dioxide diffusion detecting device of the present invention according to claim 2 is the underwater carbon dioxide diffusion detecting device according to claim 1, wherein communication between the underwater responder and the receiving means is acoustic communication. And

  In the present invention according to claim 2, carbon dioxide data can be communicated by acoustic communication.

  Further, the underwater carbon dioxide diffusion detecting device according to claim 3 of the present invention is the underwater carbon dioxide diffusion detecting device according to claim 1 or 2, wherein a plurality of underwater responders are provided. And

  In the present invention according to claim 3, the carbon dioxide data can be sent by a plurality of underwater responders.

  Further, the underwater carbon dioxide diffusion detecting device according to claim 4 of the present invention is the underwater carbon dioxide diffusion detecting device according to claim 3, wherein the underwater responder has a pH sensor for grasping the state of carbon dioxide. Is provided. Moreover, it is preferable to use together the sensor which measures the partial pressure of a carbon dioxide.

  In the present invention according to claim 4, the distribution / behavior of carbon dioxide dilution / diffusion can be detected using a pH sensor.

  Moreover, the underwater carbon dioxide diffusion detecting device of the present invention according to claim 5 is the underwater carbon dioxide diffusion detecting device according to any one of claims 1 to 4, wherein the detected carbon dioxide is the seabed. It is characterized by carbon dioxide diffusing into the sea.

  In the present invention according to claim 5, it is possible to detect the diffusion state of carbon dioxide that originates from magma, sediment, seawater, etc. and diffuses from the seabed into the sea.

  Further, the underwater carbon dioxide diffusion detecting device according to the present invention according to claim 6 is the underwater carbon dioxide diffusion detecting device according to claim 5, wherein carbon dioxide to be detected leaks from the seabed due to carbon dioxide undersea reservoir storage. It is characterized by being carbon dioxide.

  In this invention which concerns on Claim 6, the spreading | diffusion state of the carbon dioxide which leaked from the seabed is detectable by the carbon dioxide seabed ground layer storage which stores a carbon dioxide in a seabed ground layer.

  Moreover, the underwater carbon dioxide diffusion detecting device according to the present invention according to claim 7 is the underwater carbon dioxide diffusion detecting device according to any one of claims 1 to 4, wherein the detected carbon dioxide is the ocean. It is characterized by carbon dioxide isolated in the ocean.

  In the present invention according to claim 7, it is possible to detect the diffusion state of carbon dioxide isolated in the ocean.

  In order to achieve the above object, an undersea fluid detection device according to the present invention according to claim 8 is provided to communicate between a ship navigating offshore and a ship towed to grasp the current position on the earth and to the ship. An offshore towed body to be operated, an underwater transponder that collects data of spring water, squirt water, or leaked water that is towed from the ship into the sea at a predetermined depth, and transmits the collected spring water or spill water data, and the ship Receiving and transmitting data from the underwater responder to the ocean towed from the underwater transponder and transmitting the received data to the ocean towed vehicle via the communication cable; And a condition deriving means for deriving the condition of the spring, erupted water or leaked water from the seabed based on the obtained spring water, erupted water or leaked water data.

  In the present invention according to claim 8, data of spring water, squirt water or leaked water from the underwater responder towed to the sea layer of a predetermined depth is sent to the transmission / reception means, and the data is transmitted from the transmission / reception means to the offshore The data of spring water, squirt water or leaked water is transmitted to the towed body, and the diffusion status of spring water, squirt water or leaked water in a predetermined underwater layer is derived by the status deriving means. Since the transmission / reception means is towed in the sea, the influence of ship noise can be suppressed, and the influence of waves in the vicinity of the sea surface is eliminated, so that carbon dioxide data can be transmitted and received in a stable state.

  And the undersea fluid detection device of the present invention according to claim 9 is the undersea fluid detection device according to claim 8, wherein the underwater responder has a scintillator for grasping the radium state of spring water from the seabed. Is provided.

  In the present invention according to claim 9, the state of radium of spring water from the sea floor can be grasped by a scintillator, and can be used as, for example, an analogy of crustal movement, groundwater conditions, or an earthquake prediction index.

  The underwater fluid detection device according to the present invention according to claim 10 is the detection device for grasping the state of hot water ejected from the seabed in the underwater responder in the undersea fluid detection device according to claim 8. Is provided.

  In the present invention according to claim 10, the state of the hot water ejected from the seabed can be grasped by the detection means, and can be used as an analogy index for grasping the ecosystem of the seafloor organism.

  The undersea fluid detection device according to claim 11 is the undersea fluid detection device according to claim 8, wherein the detection means provided in the underwater responder is included in hot water or spring water. It is a sensor for detecting carbon dioxide or carbon dioxide leaking from the seabed.

  In the present invention according to claim 11, the state of diffusion can be detected by detecting carbon dioxide contained in hot water or spring water or carbon dioxide leaking from the seabed by a sensor for detecting carbon dioxide.

  The underwater carbon dioxide diffusion detection device of the present invention accurately detects the behavior of carbon dioxide that has leaked out of the ocean floor or separated from the ocean bottom layer storage by the ocean bottom layer storage even in the middle ocean layer. Can be detected.

  In addition, the underwater fluid detection device of the present invention can accurately detect the behavior of a fluid that springs or erupts from the seabed even in the middle layer of the ocean.

  The underwater carbon dioxide diffusion detector will be described with reference to FIG. In the illustrated embodiment, carbon dioxide is sent from a carbon dioxide spraying ship to a spraying means disposed in the middle layer of, for example, about 1000 m to 3000 m, and a plume state of carbon dioxide sprayed from the spraying means (isolated in the ocean). An example of detecting the state of carbon dioxide) is described.

  The carbon dioxide diffusing apparatus of the present invention is not limited to the detection of the diffusion of carbon dioxide in the ocean isolation, but the detection of the diffusion of carbon dioxide contained in the hot water ejected from the seabed, and the carbonate and organic matter in the sediment on the seabed. It can be applied to the detection of carbon dioxide diffusion originating from the origin (back-arc basins, etc.) and the diffusion of carbon dioxide originating from the bicarbonate ion of seawater that is reduced in the course of seawater circulation. It is also possible to detect the plume of carbon dioxide by detecting the carbon dioxide leaked from the seabed by carbon dioxide seafloor underlayer storage that sequesters carbon dioxide in the subsea reservoir.

  FIG. 1 shows an overall configuration of an underwater carbon dioxide diffusion detection apparatus according to an embodiment of the present invention, FIG. 2 shows a schematic configuration of a data carrier, and FIG. 3 shows a concept representing an observation state of diffusion.

  The overall configuration of the carbon dioxide diffusion detector will be described with reference to FIG.

  As shown in the figure, the ship 1 navigating offshore knows the current position on the earth by GPS 2 and displays various information on the CPU 3 for command and display. The ship 1 is provided with a towed body 5 towed by a towline 21 in the sea at a predetermined depth (for example, 2 m which is a depth that is not affected by sea surface waves). It is designed to maintain a horizontal posture at depth. In addition, the towed body 5 is towed in a state where the horizontal posture is maintained at a position about 200 m away from the ship 1 at a horizontal distance, and the abdomen of the towed body 5 receives and transmits data as transmission / reception means for receiving and transmitting data. A waver 9 is attached.

  A branch cable 22 is connected to the towline 21 on the front side of the towed body 5 (for example, about 5 m ahead in the horizontal distance), and the offshore towed body 4 towed on the ocean is connected to the branch cable 22. That is, the towed body 5 and the offshore towed body 4 are towed by the ship 1 by the towed line 21 and the branch line 22. The offshore towed body 4 can grasp the current position on the earth by the GPS 2 like the ship 1, and the ship 1 and the offshore towed body 4 can wirelessly communicate with each other through the wireless means 7. The offshore towed body 4 maintains the buoyancy at the sea surface, and a pole 8 that functions as a keel is provided below the sea surface.

  The transmitter / receiver 9 of the towed body 5 and the wireless means 7 of the offshore towed body 4 are connected by a communication cable 33 to perform wired communication. Various data signals received by the transmitter / receiver 9 are sent to the offshore towed body 4 via the communication cable 33 and sent to the CPU 3 of the ship 1 via the wireless means 7.

  On the other hand, the wire 11 is lowered into the sea from the rear part of the ship 1, and the wire 11 maintains a predetermined range of depth (for example, a maximum of 3000 m) over the length direction at the tip of the wire 11 and has a predetermined range. A weight 10 for towing the vehicle while being maintained is attached. The towed body 5 and the offshore towed body 4 are towed by the ship 1 via the towed line 21 and the branch line 22, and the wire 11 is towed in the sea within a predetermined depth range.

  Five data carriers 12 (underwater responders) are attached to the wire 11, and the five data carriers 12 are, for example, maintained in the middle layer (for example, 1000 m to 3000 m) in the sea. Although details will be described later, the data carrier 12 is provided with a transmitting means for transmitting a data signal by acoustic communication, a field measuring instrument, a sampling means, a data storage means, and the like.

  Note that the number of data carriers 12 is not limited to five, but two to four or a plurality of six or more may be provided.

  The configuration of the data carrier 12 will be described with reference to FIG.

  As shown in the figure, a frame-like gantry 15 is attached to the wire 11, and a transmission means 17 is supported on the gantry 15 via a rope 16. The transmission means 17 is provided with a depth meter (not shown). The transmission means 17 transmits data to the ship 1 (see FIG. 1) via the towing body 5 (see FIG. 1) and the offshore towing body 4 (see FIG. 1). , And receives a command from the ship 1 (see FIG. 1) via the towed body 5 (see FIG. 1) and the offshore towed body 4 (see FIG. 1).

  A water sampler 26 that collects seawater by remotely opening and closing a valve, an accumulation unit 27 that stores measured data, a battery 28 that serves as a power source for various devices, and a pH sensor 23 are provided on the top of the pedestal 15. . The container that holds the pH sensor 23 is provided with a partial pressure sensor that detects the partial pressure of carbon dioxide.

  As shown in FIG. 3, the carbon dioxide spraying ship 102 sailing on the ocean is connected to a carbon dioxide releasing device 101 as a spraying means. Is held in. Carbon dioxide is released from the carbon dioxide release device 101 and moves the data carrier 12 relative to the plume 31. That is, the data carrier 12 is maintained at a predetermined depth and posture at a predetermined depth by the weight 10 with respect to the depth direction of the plume 31, and the ship 1 is repeatedly traversed with respect to the flow with respect to the width direction of the plume 31. The ship 1 is navigated to detect the diffusion state of carbon dioxide at a predetermined depth.

  The distribution / behavior of carbon dioxide diffusion is tracked by acoustic communication with the data carrier 12 towed by the ship 1, and the distribution / behavior of carbon dioxide dilution / diffusion in a predetermined ocean middle layer is derived. At this time, the towed body 5 and the offshore towed body 4 are towed by the ship 1 and the wire 11 in a state where the data carrier 12 is maintained in a predetermined ocean middle layer by the weight 10 is towed. The positional relationship among the ship 1, offshore towed body 4, and data carrier 12 is always grasped by the GPS 2.

  The navigation route of the ship 1 is appropriately controlled, and various devices are operated in conjunction with information on the field measuring instrument (pH sensor 23) of the data carrier 12 to detect the distribution / behavior of the plume 31. Further, the seawater is collected by the water sampler 26 that collects seawater by opening and closing the valve by remote operation, or the data is stored by the storage means 27 that stores the data measured by the field measuring instrument. By collecting desired seawater with the water sampler 26, it is possible to carry out an investigation of ecosystems such as living organisms, and it is also possible to use it as an indicator of carbon dioxide dilution / diffusion.

  The information of the plume 31 is sent from the transmission means 17 to the transducer 9 of the towing body 5, and is sent from the transducer 9 to the offshore towing body 4 via the communication cable 33. The information of the plume 31 is sent to the CPU 3 of the ship 1 by the wireless means 7 of the offshore towed body 4. The CPU 3 grasps the distribution / behavior of carbon dioxide diffusion and derives the distribution / behavior of carbon dioxide dilution / diffusion. .

  In the above-described underwater carbon dioxide diffusion detection device, the carbon dioxide diffusion data from the transmission means 17 of the data carrier 12 towed to the underwater layer of a predetermined depth is sent to the transducer 9 of the towed body 5 and towed. Carbon dioxide diffusion data is transmitted from the transducer 9 of the body 5 to the offshore towed body 4 via the communication cable 33. Then, the carbon dioxide diffusion data is sent from the offshore towed body 4 to the ship 1 by the wireless means 7, and the distribution / behavior of carbon dioxide dilution / diffusion is derived.

  Communication between the transmission means 17 of the data carrier 12 and the transmitter / receiver 9 of the towed body 5 is performed by acoustic communication, and since the towed body 5 is towed in the sea, it is not affected by the noise of the ship 1, and The influence of waves near the sea surface is eliminated, and the carbon dioxide diffusion data can be transmitted and received in a stable state. Since the transmission / reception means is towed in the sea, the influence of the noise of the ship can be suppressed, and the influence of waves near the sea surface is eliminated, and the carbon dioxide is transmitted between the transmission means 17 and the transducer 9 in a stable state. It is possible to transmit and receive the spread data.

  For this reason, even in the middle layer of the ocean, the behavior of carbon dioxide isolated in the ocean can be accurately detected.

  In addition, carbon dioxide contained in hot water erupted from the seabed, carbon dioxide originating from carbonates and organic matter in sediments on the seabed, and dioxide originating from bicarbonate ions in seawater that is reduced in the course of seawater circulation. When applied to carbon detection, the behavior of carbon dioxide from the seabed can be accurately detected even in the middle layer.

  A state of detecting the behavior of carbon dioxide ejected from the seabed will be described with reference to FIG. FIG. 4 shows a concept representing an observation state of diffusion of carbon dioxide ejected from the seabed.

  As shown in FIG. 4, carbon dioxide is ejected from an ejection hole 105 in the seabed (sea mountain) of a predetermined ocean middle layer (for example, a water depth of 1000 m to 2000 m). The data carrier 12 is moved with respect to the plume 106 of carbon dioxide from the ejection hole 105. That is, the data carrier 12 is maintained at a predetermined depth and posture at a predetermined depth by the weight 10 in the depth direction of the plume 31, and the ship 1 is repeatedly traversed with respect to the flow in the width direction of the plume 31. The ship 1 is navigated to detect the diffusion state of carbon dioxide at a predetermined depth.

  Then, similarly to the detection of carbon dioxide released from the spray ship, the diffusion data of carbon dioxide ejected from the sea floor ejection hole 105 is sent to the ship 1 to determine the distribution / behavior of carbon dioxide dilution / diffusion. Derived.

  Based on FIG. 5, the state which detects the behavior of the carbon dioxide which leaks from the seabed by carbon dioxide seabed underlayer storage is demonstrated. FIG. 5 shows a concept representing an observation state of diffusion of carbon dioxide leaking from the seabed due to storage of the carbon dioxide seabed underlayer.

  As shown in FIG. 5, carbon dioxide is injected into the seabed and isolated to the ocean, so that a region 201 of the carbon dioxide seabed foundation layer is formed in the formation below the seabed at a predetermined depth. A part of the carbon dioxide 202 injected into the formation below the seabed leaks from an arbitrary location in the region 201 of the carbon dioxide seabed underlayer. The data carrier 12 is moved corresponding to the region 201 of the carbon dioxide submarine underlayer.

  Thus, even if the carbon dioxide 202 leaks from the seabed by the carbon dioxide seafloor underlayer storage, which is stored in the seafloor underlayer and sequestered carbon dioxide, the state of dilution / diffusion distribution and behavior of the leaked carbon dioxide 202 Can be grasped.

  The underwater fluid detection device according to the present invention includes an underwater responder that collects data of spring water or jet water in the sea and transmits data of the collected spring water or jet water. That is, by using a thermometer as a sensor of the underwater responder, it is possible to detect the diffusion state of hot water ejected from the seabed, and further, by providing a pH sensor, the diffusion state of carbon dioxide contained in the hot water Can be detected.

  In addition, by using a scintillator as an underwater transponder sensor in a fluid detection device, it is possible to detect the status of radiation contained in underwater springs or erupting water, such as radon, and to understand crustal deformation and earthquake prediction. It can be used as an index. It can also be used as an index for grasping the status of groundwater.

  For this reason, even in the middle layer of the ocean, it is possible to accurately detect the behavior of the fluid that springs out or erupts from the seabed.

  The present invention can be used, for example, in the industrial field of an underwater carbon dioxide diffusion detecting device for grasping the diffusion state of carbon dioxide released into the middle ocean layer.

  Moreover, this invention can be utilized in the industrial field | area of the underwater fluid detection apparatus for grasping | ascertaining the state of the spring water from the seabed, or a jet water, for example.

1 is an overall configuration diagram of an underwater carbon dioxide diffusion detection device according to an embodiment of the present invention. It is a schematic block diagram of a data carrier. It is a conceptual diagram showing the observation condition of a diffusion behavior. It is a conceptual diagram showing the observation condition of the diffusion behavior of the carbon dioxide ejected from the seabed. It is a conceptual diagram showing the observation condition of the diffusion of the carbon dioxide which leaks from the seabed by carbon dioxide seabed underlayer storage.

Explanation of symbols

1 Ship 2 GPS
3 CPU
DESCRIPTION OF SYMBOLS 4 Offshore body 5 Towing body 6 Para anchor 7 Radio | wireless means 8 Pole 9 Transmitter / receiver 10 Weight 11 Wire 12 Data carrier 15 Mounting frame 16 Rope 17 Transmission means 21 Towing rope 22 Branching rope 23 pH sensor 26 Water sampling device 27 Accumulation means 28 Battery 31, 106 Plume 33 Communication cable 101 Carbon dioxide discharge device 102 Carbon dioxide spraying ship 105 Blowout hole 201 Carbon dioxide seabed underlayer region 202 Carbon dioxide (leaked carbon dioxide)

Claims (11)

A ship sailing offshore;
An offshore towed vehicle that is towed by a ship, knows its current position on the earth and communicates with the ship;
An underwater responder that is towed from a ship into the ocean at a predetermined depth and collects carbon dioxide data in the ocean and transmits the collected carbon dioxide data;
A transmission / reception means for receiving the carbon dioxide data from the underwater responder that is towed from the ship to the sea, and for transmitting the received data to the offshore towed body via the communication cable;
Carbon dioxide deriving means for deriving the diffusion state of carbon dioxide in a predetermined underwater layer based on data of carbon dioxide sent from the transmitting / receiving means to the offshore towed vehicle by means of a communication cable; Diffusion detection device. The underwater carbon dioxide diffusion detection device according to claim 1,
An underwater carbon dioxide diffusion detecting device characterized in that communication between the underwater responder and the receiving means is acoustic communication. In the carbon dioxide diffusion detector in the sea according to claim 1 or claim 2,
An underwater carbon dioxide diffusion detection device comprising a plurality of underwater responders. In the carbon dioxide diffusion detector in the sea according to claim 3,
An underwater carbon dioxide diffusion detecting device, characterized in that the underwater responder is equipped with a pH sensor for grasping the state of carbon dioxide. In the carbon dioxide diffusion detector in the sea according to any one of claims 1 to 4,
An underwater carbon dioxide diffusion detecting device, wherein the detected carbon dioxide is carbon dioxide diffusing from the seabed into the sea. The underwater carbon dioxide diffusion detecting device according to claim 5,
A carbon dioxide diffusion detecting device in the sea, wherein the carbon dioxide to be detected is carbon dioxide leaked from the seabed due to carbon dioxide undersea reservoir storage. In the carbon dioxide diffusion detector in the sea according to any one of claims 1 to 4,
A carbon dioxide diffusion detecting device in the ocean, wherein the carbon dioxide to be detected is carbon dioxide isolated in the ocean. A ship sailing offshore;
An offshore towed vehicle that is towed by a ship, knows its current position on the earth and communicates with the ship;
An underwater responder that collects data of spring water, squirt water, or leaked water that is towed from a ship into the sea at a predetermined depth and transmits the data of the collected spring water or spill water;
A transmission / reception means for receiving the data of spring water or jet water from the underwater transponder that is towed from the ship into the sea, and for transmitting the received data to the offshore towed body via a communication cable;
Situation deriving means for deriving the state of spring water, squirting water or leaked water from the seabed based on data of spring water, squirting water or leaking water sent from the transmitting / receiving means to the offshore towed body by communication cable An underwater fluid detection device. The underwater fluid detection device according to claim 8,
An underwater responder is provided with a scintillator for grasping the radium state of spring water from the seabed. The underwater fluid detection device according to claim 8,
An underwater responder is provided with detection means for grasping the state of hot water ejected from the seabed. The underwater fluid detection device according to claim 8,
An underwater fluid detection device characterized in that the detection means provided in the underwater responder is a sensor for detecting carbon dioxide contained in hot water or spring water or carbon dioxide leaking from the seabed.