KR102131422B1 - Method and apparatus for tracking oil spills in Ocean - Google Patents

Abstract

A method for tracking movement of a marine spill oil according to the present invention comprises the steps of: receiving remote sensing information of a marine spill oil generation area from an artificial satellite; Receiving marine information and weather information of the marine spill oil generating area; Processing the location of the spilled oil from the remote sensing information into virtual particle data; and forwarding the movement of the virtual particle using a coefficient value for a ratio reflecting the spatial change of the ocean information, weather information, and wind speed and current. Or tracing in the reverse direction to trace the trajectory of the marine spill oil.
According to the present invention, it is possible to track the trajectory of the marine oil spill by using the satellite image as the initial input data and estimating the motion of the marine oil spill by estimating the movement of the virtual particle corresponding to the position of the oil spill to the past.
In particular, it is possible to estimate the initial position of the offshore oil by tracking the movement of the virtual particles in the reverse direction.

Description

Method and apparatus for tracking oil spills in Ocean}

The present invention relates to a method and apparatus for tracking the movement of marine effluent, and more particularly to a method and apparatus for tracking the movement of marine effluent.

The ship is provided with an oil tank for storing and supplying fuel in relation to propulsion using the power of the engine engine, and the oil tank is damaged due to the collision of the ship with other reefs or collision with other ships, and the oil is transferred to the outside. Spilling occurs. These oil spills contaminate the ocean, destroy marine ecosystems, deplete offshore resources, and cause serious problems, such as the death of farmed fish, especially in the case of large ships, oil tankers, etc. .

Therefore, in order to reduce marine pollution caused by the oil spill as described above, an oil fence is generally installed to suppress the diffusion of oil, and measures to decompose and settle the oil with an emulsifier are performed. In order to carry out these measures and predict the oil diffusion area, it is necessary to make an early prediction of the extent of oil spill diffusion in the ocean.

Accordingly, (Patent Document 1), which is a method of tracking the movement speed and range of marine effluent oil, has been filed, and will be described in detail with reference to (Patent Document 1).

(Patent Document 1) relates to a method and apparatus for tracking marine oil spills, and accordingly, receiving remote sensing information of a marine oil spill area from an artificial satellite; Receiving marine information and weather information of the marine spill oil generation area from the outside; Processing the location of the spilled oil as virtual particle data from the received remote sensing information; Tracking the spilled oil by estimating the movement of the virtual particles using the received sea information and weather information, and a ratio value reflecting a wind speed linearly proportional to the wind speed.

However, (Patent Document 1) has a problem of poor reliability in tracking the marine effluent because it does not take into account spatial changes in current and wind.

Korean Registered Patent No. 10-1538668

An object of the present invention is to use the satellite image as initial input data and to track the trajectory of the marine spill oil by estimating the motion of the marine spill oil through estimation of the movement of the virtual particles corresponding to the location of the marine spill oil into the past.

In particular, it is an object to estimate the initial position of the offshore oil by tracking the movement of the virtual particles in the reverse direction.

A method for tracking the movement of marine oil spills according to the present invention for achieving the above object comprises: receiving remote sensing information of a marine oil spill area from a satellite; Receiving marine information and weather information of the marine spill oil generating area; Processing the position of the effluent from the remote sensing information into virtual particle data; and forwarding the movement of the virtual particle using a coefficient value for a ratio reflecting the spatial change of the ocean information, weather information, and wind speed and current. Or tracing in the reverse direction to trace the trajectory of the marine spill oil.

Here, in particular, the remote sensing information, the maritime information, and the weather information are information received at a first time of the marine spill oil generation area, and tracking the trajectory of the spill oil is received at the first time It is characterized in that it tracks the moving speed and moving range of the spilled oil during the second time based on the information.

Here, in particular, the remote sensing information is characterized in that it is at least one of image data and radio wave characteristic data obtained from an optical sensor or a microwave sensor.

Here, in particular, the maritime information includes at least one of the velocity and direction of the algae in the outflow oil generating region, and the velocity and direction of the current, and the weather information is related to wind speed and wind direction of the outflow oil generating region. It is characterized by the fact that it contains information.

Here, in particular, the estimation of the movement of the virtual particles is based on the following equation, the method for tracking the movement of the marine effluent:

1) Forward:

2) Reverse:

,

,

:

,

,

순간의 i번째 가상입자의 위치

,

,

:

,

,

Position of the i-th virtual particle at the moment

:풍속과 해류의 공간적인 변화를 반영한 비율에 대한 계수값을 적용한 속도

: The speed at which the coefficient value is applied to the ratio reflecting the spatial change of wind speed and current.

:난류 확산 속도

: Turbulent diffusion rate

It has that characteristic.

)는 하기 수학식에 기초하여 이루어지는 것인 해상 유출유의 이동 추적 방법:Here, in particular, the speed at which the coefficient value for the ratio reflecting the spatial change of the wind speed and the current is applied (

) Is based on the following equation, the method for tracking the movement of marine oil spills:

:해류 드리프트 계수(current drift coefficient)

: Current drift coefficient

:표면 해류 속도(the surface current velocity)

:The surface current velocity

:풍속 할증 계수(wind drag coefficient)

:Wind drag coefficient

: 바람 속도

: Wind speed

The point has that characteristic.

Here, in particular, the outflow oil generation region is characterized in that the surface current of the outflow oil generation region is a coastal region having a great influence of algae.

In addition, the apparatus for tracking movement of marine spill oil according to the present invention includes: a first receiving unit for receiving remote sensing information of an area where a marine spill is generated from an artificial satellite; A second receiving unit receiving the marine information and weather information of the marine spill oil generation area from the outside; A data processing unit for processing the location of the spilled oil into virtual particle data from the received remote sensing information; and the virtual particle using coefficient values for the sea information, weather information, and a ratio reflecting spatial changes in wind speed and current. It has a feature in that it includes; a tracking unit for tracking the movement of the forward or backward direction to track the trajectory of the marine spill oil.

Here, in particular, the remote sensing information, the maritime information, and the weather information are information received at a first time in the marine spill oil generation area, and the spill oil tracking unit is based on information received at the first time. Therefore, it is characterized in that it tracks the moving speed and the moving range of the spilled oil at the second time.

Here, in particular, the remote sensing information is at least one of image data and radio wave characteristic data obtained from an optical sensor or a microwave sensor, and the maritime information includes the speed and direction of the algae in the outflow oil generating region, and the current. It is characterized in that it includes at least one of a speed and a direction, and the weather information includes information on wind speed and wind direction of the outflow oil generating region.

Here, in particular, the effluent tracking unit, the marine effluent oil initial position tracking device to perform the movement estimation of the virtual particles based on the following equation:

1) Forward:

2) Reverse:

,

,

:

,

,

순간의 i번째 가상입자의 위치

,

,

:

,

,

Position of the i-th virtual particle at the moment

:풍속과 해류의 공간적인 변화를 반영한 비율에 대한 계수값을 적용한 속도

: The speed at which the coefficient value is applied to the ratio reflecting the spatial change of wind speed and current.

:난류 확산 속도

: Turbulent diffusion rate

It has that characteristic.

)는 하기 수학식에 기초하여 이루어지는 것인 해상 유출유의 이동 추적 장치:Here, in particular, the speed at which the coefficient value for the ratio reflecting the spatial change of the wind speed and the current is applied (

) Is a movement tracking device for offshore oil that is made based on the following equation:

:해류 드리프트 계수(current drift coefficient)

: Current drift coefficient

:표면 해류 속도(the surface current velocity)

:The surface current velocity

:풍속 할증 계수(wind drag coefficient)

:Wind drag coefficient

: 바람 속도

: Wind speed

It has that characteristic.

Here, in particular, the outflow oil generating region is characterized in that the surface current of the generating region is a coastal region having a great influence of algae.

According to the present invention, it is possible to use the satellite image as the initial input data and estimate the movement of the marine effluent through the estimation of the movement of the virtual particle corresponding to the location of the marine effluent to the future to track the initial location of the marine effluent.

In particular, it is possible to estimate the initial position of the offshore oil by tracking the movement of the virtual particles in the reverse direction.

FIG. 1 is a schematic flowchart of a method for tracking the movement of marine effluent according to an embodiment of the present invention.
2 is a view showing the time-series data of the wind speed in the region of the marine spill oil according to Experimental Example 1.
FIG. 3 is a view showing time-domain data of the current velocity in a region where a marine effluent occurs according to Experimental Example 1.
4 is a schematic block diagram of an apparatus for tracking marine effluent movement according to an embodiment of the present invention, which performs the method of FIG. 1.

The present invention can be applied to various changes and can have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail through detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In the description of the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, the numbers used in the description process of the present specification (for example, first, second, etc.) are only identification numbers for distinguishing one component from other components.

In addition, in the present specification, when one component is referred to as “connected” or “connected” with another component, the one component may be directly connected to the other component, or may be directly connected. It should be understood that, as long as there is no objection to the contrary, it may or may be connected via another component in the middle.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic flowchart of a method for tracking the movement of marine effluent according to an embodiment of the present invention.

Referring to Figure 1, the present invention is a method for tracking the movement of marine oil spills, the step of receiving remote sensing information of the marine oil spill area (S100), and receiving the marine information and weather information of the marine oil spill area ( S200), processing the position of the spilled oil from the remote sensing information into virtual particle data (S300), and maritime information and weather information, and coefficient values for the flow rate of the spilled oil reflecting spatial changes in wind speed and current. And tracking the trajectory of the spilled oil by estimating the movement of the virtual particles (S400).

The step S100 is a step of receiving remote sensing information of the marine oil spill area from the satellite. The remote sensing information includes at least one of image data and radio wave characteristic data obtained from an optical sensor, an infrared sensor, an ultraviolet sensor, or a microwave sensor. The image data obtained from the optical sensor, infrared sensor, ultraviolet sensor or microwave sensor, for example, optical image data obtained from a multi-spectral camera (optical image) or synthetic aperture radar (SAR) It may include SAR image data obtained from. In the image data, local location information corresponding to the image data may also be included.

In addition, the propagation characteristic data may include acquisition time of the data, radar frequency provided for the satellite, radar polarization, radar incidence angle, backscattering coefficient at the sea surface according to the incidence angle, and the like. In addition, such remote sensing information is information received in the first time of the marine spill oil generation area. For example, the time that a certain time has elapsed since the time when the marine spill occurred, for example, 10 minutes, 20 minutes, 30 minutes, 40 minutes, 50 minutes, 60 minutes, 2 hours, 3 hours, 4 hours, 5 hours , 6 hours, 7 hours, 8 hours, 9 hours, 10 hours, 20 hours, 30 hours, 40 hours, 50 hours, 60 hours, 70 hours, 80 hours, 90 hours, 100 hours… It may include information received at a later time.

In one embodiment, the SAR image data may be used as initial data for estimating the movement of virtual particles. In addition, radiometric calibration is applied to calculate the normalized radar scattering cross-sectional area (NRCS), and geometric correlation is applied.

The step S200 is a step of receiving marine information and weather information of the marine spill oil generating area from the outside. The maritime information and meteorological information of the marine oil spill area can be received from various routes. For example, the maritime information can be obtained from each maritime information provider, such as the Korea Hydrographic and Ocenographic Administration. Maritime information for can be received. Meteorological information may receive information on wind speed and wind direction from the Korea Meteorological Administration, and such weather information may also receive weather information of a corresponding country from each country's meteorological agency corresponding to the Korea Meteorological Agency. In addition, the weather information can receive weather information of an area to be investigated from an artificial satellite.

The marine information includes at least one of tidal current, tidal current velocity and direction, and ocean current velocity and direction in the spilled oil generating region, and the weather information provides information on wind speed and wind direction of the spilled oil generating region. Includes.

In one embodiment, surface algae data is obtained from an EFDC marine model (Evironmental Fluid Dynamics code: EFDC). These model coordinates are generalized to the horizontal and vertical sigma coordinates of the orthogonal curve. In addition, this model coordinate is a three-dimensional hydrodynamic model based on continuity, momentum, salinity balance, and statics, thermal equilibrium, and Busousinesq approximations.

As an example, a surface current without wind effect may be used using an EFDC model having a lattice spacing of 500 m. The surface current data can be generated at 30 minute intervals. Velocity data at a virtual particle data location at a specific time may be designed to bring data in a time zone close to the data generated at 30 minute intervals.

In addition, in one embodiment, offshore wind power data may be collected by the Korea Meteorological Administration. The wind data may include an average wind speed for 1 minute at 1 minute intervals at different heights. The Hellman exponential method was used to convert the 10 m high wind into sea level. In addition, an interpolation method was used to generate wind data for the runoff area every 30 minutes.

Similar to the step S100, the marine information and the weather information are information received at a first time in the marine spill oil generation area. For example, a predetermined time from the time when the marine spill oil occurred, for example, 10 minutes, 20 minutes, 30 minutes, 40 minutes, 50 minutes, 60 minutes, 2 hours, 3 hours, 4 hours, 5 hours, 6 hours, 7 hours, 8 hours, 9 hours, 10 hours, 20 hours, 30 hours, 40 hours, 50 hours, 60 hours, 70 hours, 80 hours, 90 hours, 100 hours… It may include information received at a later time, which may be arbitrarily set, and may be a time provided by a provider providing each information described above.

The step S300 is a step of processing the location of the spilled oil from the received remote sensing information into virtual particle data. The virtual particle data processing step of step S300 includes: extracting virtual particles corresponding to the location of the spilled oil from the image data among the remote sensing information; And setting the location coordinates of the extracted virtual particles using grid cells having a predetermined size based on the spatial resolution of the image data.

As an example, an adoption threshold adjustment algorithm having a moving window and clustering is used as a method for distinguishing between spilled and non-spilled pixels in the image data. The threshold at each window is estimated by the standard deviation calculated from the backscatter level of the dB scale at each window.

In step S400, the movement of the virtual particles is tracked in the forward or reverse direction by using the received maritime information and weather information, and a coefficient value for the contribution ratio of the outflow oil movement reflecting spatial changes in wind speed and current. This is the step of tracking the significant trajectory. The virtual particle movement estimation in step S400 is a step of tracking the movement speed and range of the spilled oil in the second time based on the maritime information, weather information, and remote sensing information received in the first time. The second time is, for example, 10 minutes, 20 minutes, 30 minutes, 40 minutes, 50 minutes, 60 minutes, 2 hours, 3 hours, 4 hours, 5 hours, 6 hours, 7 hours from the first hour , 8 hours, 9 hours, 10 hours, 20 hours, 30 hours, 40 hours, 50 hours, 60 hours, 70 hours, 80 hours, 90 hours, 100 hours… It may be a time after various time intervals have passed. Therefore, this step is to track the speed and range of movement of the virtual particles through the simulation at the second time based on the information collected at the first time.

The virtual particle movement estimation in step S400 is made based on Equations 1 and 2 below.

,

,

:

,

,

순간의 i번째 가상입자의 위치,From here,

,

,

:

,

,

The position of the i-th virtual particle at the moment,

:풍속과 해류의 공간적인 변화를 반영한 유출유 이동 기여 비율에 대한 계수값을 적용한 속도,

:난류 확산 속도이다.

: The speed at which the coefficient value is applied to the contribution ratio of the flow of effluent oil reflecting the spatial change of wind speed and current,

: Turbulence diffusion rate.

는, 하기 수학식3에 기초하여 이루어진다.The speed at which the coefficient value is applied to the contribution ratio of the flow of effluent oil reflecting the spatial change of the wind speed and current.

Is made based on the following equation (3).

:해류 드리프트 계수(current drift coefficient),

:표면 해류 속도(the surface current velocity),

:풍속 할증 계수(wind drag coefficient),

: 바람 속도 이다.From here,

: Current drift coefficient,

:The surface current velocity,

:Wind drag coefficient,

: Wind speed.

In order to verify the above, the following experiment was performed.

Based on the oil spill incident of'Hebei Spirit' occurred on the Taean Peninsula off the west coast around 7 am on December 7, 2007, after the simulation of the diffusion range of spilled oil, it was compared with satellite data showing the actual oil spill of Hebei Spirit. By calculating the matching rate, the reliability of this simulation was confirmed.

When performing this simulation, maritime information and meteorological information were used after receiving the EFDC model and meteorological data received, and the satellite information is shown in Table 1 below.

satellite ENVISAT ASAR RADAR SAT-1 Terra SAT-X ENVISAT ASAR Acquisition time (LT) 2007.12.11 10:40 2007.12.11 18:31 2007.12.13 06:44 2007.12.14 10:45 Polarized light
(Polarization) VV HH VV VV angle of incidence
(Incidence angle) 31.0-36.3 31-39 31.8-40.5 19.2-26.7 Spatial resolution [m] 150/150 25/27 18.5/18.5 150/150 Wind speed [m/s] 5.6 6.3 4.3 6.9 Wind direction [Deg] 338.0 347.0 323.1 339.0

Tracking simulations were performed on three cases.

Table 2 below shows the simulation of case 1-3.

Forward: Start time (LT)
Reverse: End time (LT) Forward: End Time (LT)
Reverse: Start time (LT) Time difference
(Time difference) Case 1 2007.12.11 10:40 2007.12.11 18:31 7 hours 51 minutes Case 2 2007.12.11.18:31 2007.12.13 06:43 36 hours 13 minutes Case 3 2007.12.13.06:43 2007.12.14.10:45 28 hours 01 minutes

Case 1 simulates the virtual particles of ENVISAT ASAR acquisition time of 2007.12.11 10:40 from EN:ATASAR acquisition time of 2007.12.11 10:40 to RADAR SAT-1 acquisition time, and Case 2 performs RADAR From SAT-1 acquisition time 2007.12.11 18:31 to Terra SAT-X acquisition time, simulation of virtual particles of RADAR SAT-1 acquisition time 2007.12.11 18:31 with initial input data, Case 3 is Terra Simulation of the virtual particles of Terra SAT-X acquisition time 2007.12.13 06:43 from SAT-X acquisition time 2007.12.13 06:43 to ENVISAT ASAR acquisition time 2007.12.14 10:45 was performed with initial input data. .

In the case of the reverse simulation, each was performed in reverse according to the forward simulation.

When performing the simulation for each case, the movement tracking of the virtual particles is performed based on Equation (1) in the forward direction, and is performed based on Equation (2) in the reverse direction, reflecting spatial changes in wind power and current. The rate reflecting the coefficient value for the contribution ratio of the effluent flow was performed based on Equation (3).

The simulation results are shown in Table 3 below.

Forward Reverse Condition
(condition:%) Matching rate
(Matching Rate) Condition
(condition:%) Matching rate
(Matching Rate) Case 1

:1.5,

:115

:1.5,

:115 91.25

:2.0,

:105 74.56 Case 2

:1.5,

:105 84.09

:1.5,

:110 72.32 Case 3

:3.0,

:115 69.10

:4.0,

:100 58.85

It can be seen that the matching rate varies depending on the coefficient value for the contribution ratio of the flow of effluent oil reflecting the spatial change of wind and current, and it can be seen that the matching rate of case 3 is lower than that of cases 1 and 2.

2 is a view showing the time-series data of the wind speed in the region of the marine spill oil according to Experimental Example 1.

FIG. 3 is a view showing time-domain data of the current velocity in a region where a marine effluent occurs according to Experimental Example 1.

2 and 3, the ocean current shows a repetitive change in the north-south direction, and the speed shows almost similar values. However, the current in FIG. 3(d) shows a rather weak speed. On the other hand, the change in wind in FIG. 2 shows a large change.

In Case 2, relatively weak winds were observed, and in Case 3, strong winds continued in the south.

In addition, the last detected Figure 2 (d) showed a different wind change pattern.

Table 3 shows that the coefficients applied when obtaining the highest matching result are all different for each case.

FIG. 5 is a schematic block diagram of a marine effluent tracking device according to an embodiment of the present invention, performing the method of FIG. 1;

5 is for the offshore oil spill tracking device 100 according to an embodiment of the present invention, the first receiving unit 110, the second receiving unit 120, the data processing unit 130 and the spill oil tracking unit 140 ). The marine spill oil tracking device 100 is an electronic device that performs the marine spill oil tracking method described with reference to FIGS. 1 to 4 and may include any type of electronic device, and the marine spill described with reference to FIGS. 1 to 4 It may include an electronic device is installed a program capable of performing the tracking method.

The program is stored in a computer-readable medium and is read by a computer to perform its functions, and the medium is specially designed and constructed for the present invention or is known and used by those skilled in the computer software field. It may be possible, for example, magnetic media such as hard disks, floppy disks and magnetic tapes, optical recording media such as CDs and DVDs, magnetic-optical recording media capable of both magnetic and optical recording, ROM, RAM, flash It may be a hardware device specially configured to store and execute program instructions by memory or alone or in combination.

In addition, the program can be transmitted to a computer by being stored in a server system capable of transmitting information through a communication network such as an intranet or the Internet, as well as being read by a computer by the medium. It is also possible to provide a platform that allows a computer to access the server system and execute the program on the server system without transmitting to the computer.

The first receiving unit 110 is to receive the remote sensing information of the marine oil spill area from the satellite, corresponding to step S100 of Figure 1, the second receiving unit 120 is the marine information of the marine oil spill area from the outside And receiving weather information and corresponding to step S200 of FIG. 1, the data processing unit 130 processes the location of the spilled oil as virtual particle data from the received remote sensing information, and corresponds to step S300 of FIG. The oil tracking unit 140 estimates the movement of the virtual particles by using the received maritime information and weather information, and coefficient values for the ratio of the flow rate of the outflow oil reflecting spatial changes in wind speed and current. And this corresponds to step S400 in FIG. 1. Therefore, redundant description will be omitted here.

The scope of the present invention is not limited to the above-described embodiments, but may be implemented as various types of embodiments within the scope of the appended claims. Any person skilled in the art to which the present invention pertains without departing from the gist of the present invention as claimed in the claims is deemed to be within the scope of the claims of the present invention to a wide range that can be modified.

100: sea oil spill tracking device
110: first receiving unit
120: second receiver
130: data processing unit
140: spill oil tracking

Claims (13)

Receiving remote sensing information of the marine oil spill area from the satellite;
Receiving marine information and weather information of the marine spill oil generating area;
Processing the location of the spilled oil from the remote sensing information into virtual particle data; and
Tracking the trajectory of the marine effluent by tracking the movement of the virtual particles in the forward or reverse direction using the coefficients for the contribution ratio of the effluent flow reflecting the sea information, weather information, and spatial changes in wind speed and current; Including,
The remote sensing information, the marine information, and the weather information are information received at a first time in the marine spill oil generation area,
Tracking the trajectory of the spilled oil tracks the movement speed and range of movement of the spilled oil during the second time based on the information received at the first time,
The remote sensing information is an optical sensor. At least one of image data and radio wave characteristic data obtained from an infrared sensor, an ultraviolet sensor, or a microwave sensor,
The maritime information includes at least one of the velocity and direction of the algae in the outflow oil generating region, and the velocity and direction of the current,
The weather information includes information on wind speed and wind direction of the spilled oil generation area,
The movement estimation of the virtual particles is made based on the following equation,
1) Forward:

2) Reverse:

,

,

:

,

,

Position of the i-th virtual particle at the moment

: The speed at which a coefficient value is applied to the ratio of oil flow contribution that reflects spatial changes in wind speed and current.

: Turbulent diffusion rate
The speed at which the coefficient value is applied to the contribution ratio of the flow of effluent oil reflecting the spatial change of the wind speed and current (

) Is based on the following equation, the method for tracking the movement of marine oil spills:

: Current drift coefficient

:The surface current velocity

:Wind drag coefficient

: Wind speed
delete delete delete delete delete According to claim 1,
The effluent generation region, the surface current of the effluent generation region is a coastal region where the influence of algae is large, the method for tracking the movement of marine effluent.
A first receiving unit for receiving remote sensing information of the marine oil spill area from the satellite;
A second receiving unit receiving the marine information and weather information of the marine spill oil generation area from the outside;
A data processing unit for processing the location of the spilled oil into virtual particle data from the received remote sensing information; and
Outflow oil that tracks the trajectory of the offshore oil by tracking the movement of the virtual particles in the forward or reverse direction using the coefficient value for the contribution ratio of the outflow oil movement reflecting the sea information, weather information, and spatial changes in wind speed and current. Includes a tracking unit;
The remote sensing information, the marine information, and the weather information are information received at a first time in the marine spill oil generation area,
The spill oil tracking unit tracks the movement speed and range of movement of the spill oil at a second time based on the information received at the first time,
The remote sensing information is at least one of image data and radio wave characteristic data obtained from an optical sensor, an infrared sensor, an ultraviolet sensor, or a microwave sensor,
The maritime information includes at least one of the velocity and direction of the algae in the outflow oil generating region, and the velocity and direction of the current,
The weather information includes information on wind speed and wind direction of the spilled oil generation area,
The effluent tracer performs motion estimation of the virtual particles based on the following equation,
1) Forward:

2) Reverse:

,

,

:

,

,

Position of the i-th virtual particle at the moment

: The speed at which a coefficient value is applied to the ratio of oil flow contribution that reflects spatial changes in wind speed and current.

: Turbulent diffusion rate
The speed at which the coefficient value is applied to the ratio of the contribution of the flow of effluent oil reflecting the spatial change of the wind speed and current (

) Is a movement tracking device for offshore oil that is made based on the following equation:

: Current drift coefficient

:The surface current velocity

:Wind drag coefficient

: Wind speed
delete delete delete delete The method of claim 8,
The effluent oil generating area, the surface currents of the generating area is a coastal area having a large impact of algae, the movement tracking device for marine effluent.

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