Short-wave radiation parameterization method and device for near-shore water body and electronic equipment

Abstract

The invention discloses a shortwave radiation parameterization method and device for a near-shore water body and electronic equipment, and relates to the technical field of water body monitoring. A proportion parameter of first wavelength light in short wave radiation, a proportion parameter of second wavelength light in short wave radiation, a parameter of the first wavelength light in a water body penetration process and a parameter of the second wavelength light in a water body penetration process are acquired, and a penetration parameter of the first wavelength light and a penetration parameter of the second wavelength light are determined by utilizing corresponding parameters; and then the penetration parameter of the first wavelength light and the penetration parameter of the second wavelength light are combined to obtain a short-wave radiation penetration parameter of the near-shore water body, so that the aim of parameterizing the short-wave radiation is fulfilled, and a solar short-wave radiation penetration process can be subsequently simulated according to the obtained short-wave radiation parameter. The method is used for optimizing analysis and research on the ocean thermal power process and the ocean ecosystem.

Description

Technical Field

[0001] The present invention relates to the technical field of water body monitoring, and in particular to a shortwave radiation parameterization method, device and electronic equipment for nearshore water bodies. Background Art

[0002] Shortwave solar radiation is the primary source of heat in nearshore estuaries. Upon reaching the surface, some shortwave solar radiation is reflected by the sea, while some penetrates and is ultimately absorbed by the water. This radiation, which penetrates the sea surface, directly affects the water temperature below, significantly impacting the study of ocean thermodynamics and marine ecosystems. Simulating this shortwave solar radiation penetration requires obtaining shortwave radiation parameters, and parameterizing this shortwave radiation is a pressing issue. Summary of the Invention

[0003] In view of this, embodiments of the present invention provide a method, device, and electronic device for parameterizing shortwave radiation of nearshore water bodies, so as to solve the problem of how to parameterize shortwave radiation.

[0004] According to a first aspect, an embodiment of the present invention provides a method for parameterizing shortwave radiation of a nearshore water body, the method comprising:

[0005] Obtaining a parameter of the ratio of the first wavelength light to the shortwave radiation, a parameter of the second wavelength light to the shortwave radiation, a parameter of the first wavelength light during water penetration, and a parameter of the second wavelength light during water penetration, wherein the first wavelength light is non-infrared light and the second wavelength light is infrared light;

[0006] Determining a first penetration parameter of the shortwave radiation in the first wavelength light based on a parameter of the ratio of the first wavelength light to the shortwave radiation and a parameter of the first wavelength light during water penetration;

[0007] Determining a second penetration parameter of the shortwave radiation in the second wavelength light based on a parameter of the ratio of the second wavelength light to the shortwave radiation and a parameter of the second wavelength light during water penetration;

[0008] The shortwave radiation penetration parameter of the nearshore water body is determined based on the first penetration parameter of the shortwave radiation in the first wavelength light and the second penetration parameter of the shortwave radiation in the second wavelength light.

[0009] Optionally, obtaining parameters of the light of the first wavelength during water penetration includes:

[0010] obtaining a diffuse attenuation coefficient of light of a first wavelength;

[0011] The diffuse attenuation coefficient of the first wavelength light is used to determine parameters of the first wavelength light during the water penetration process.

[0012] Optionally, obtaining the diffuse attenuation coefficient of the first wavelength light includes:

[0013] Obtaining a water depth parameter of a nearshore water body, a suspended matter concentration of the nearshore water body, and a solar zenith angle parameter corresponding to the nearshore water body;

[0014] The diffuse attenuation coefficient of the first wavelength light is calculated according to the water depth parameter of the nearshore water body, the suspended matter concentration of the nearshore water body and the solar zenith angle parameter corresponding to the nearshore water body.

[0015] Optionally, obtaining parameters of the second wavelength light during water penetration includes:

[0016] obtaining an attenuation coefficient of light of a second wavelength;

[0017] The attenuation coefficient of the second wavelength light is used to determine parameters of the second wavelength light during the water penetration process.

[0018] Optionally, obtaining the attenuation coefficient of the second wavelength light includes:

[0019] Obtaining a water depth parameter of a nearshore water body, a suspended matter concentration of the nearshore water body, and a solar zenith angle parameter corresponding to the nearshore water body;

[0020] The attenuation coefficient of the second wavelength light is calculated according to the water depth parameter of the nearshore water body, the suspended matter concentration of the nearshore water body and the solar zenith angle parameter corresponding to the nearshore water body.

[0021] Optionally, obtain the suspended matter concentration of nearshore waters, including:

[0022] Obtain the backscattering coefficient of the target band and the pure water backscattering coefficient of the target band;

[0023] Calculating the difference between the backscattering coefficient of the target band and the backscattering coefficient of pure water in the target band to determine the backscattering coefficient of suspended particles;

[0024] determining the suspended matter concentration of the nearshore water body according to the backscatter coefficient of the suspended particulate matter;

[0025] and / or,

[0026] Obtaining the backward absorption coefficient of the target band and the pure water backward absorption coefficient of the target band;

[0027] Calculating the difference between the backward absorption coefficient of the target band and the backward absorption coefficient of pure water in the target band to determine the backward absorption coefficient of suspended particulate matter;

[0028] The suspended matter concentration of the nearshore water body is determined according to the suspended particulate matter backward absorption coefficient.

[0029] Optionally, the target wavelength band is 490 nm.

[0030] Optionally, the suspended matter concentration of the nearshore water body includes sediment concentration.

[0031] According to a second aspect, an embodiment of the present invention provides a shortwave radiation parameterization device for nearshore waters, comprising:

[0032] An acquisition module, configured to acquire a parameter of the ratio of the first wavelength light to the shortwave radiation, a parameter of the second wavelength light to the shortwave radiation, a parameter of the first wavelength light during water penetration, and a parameter of the second wavelength light during water penetration;

[0033] a first determining module, configured to determine a first penetration parameter of the shortwave radiation in the first wavelength light based on a parameter of a ratio of the first wavelength light to the shortwave radiation and a parameter of the first wavelength light during water penetration;

[0034] a second determining module, configured to determine a second penetration parameter of the shortwave radiation in the second wavelength light based on a parameter of a ratio of the second wavelength light to the shortwave radiation and a parameter of the second wavelength light during water penetration;

[0035] The third determining module is configured to determine a shortwave radiation penetration parameter of the nearshore water body according to a first penetration parameter of the shortwave radiation in the first wavelength light and a second penetration parameter of the shortwave radiation in the second wavelength light.

[0036] According to the third aspect, an embodiment of the present invention provides an electronic device / mobile terminal / server, comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the shortwave radiation parameterization method for nearshore water bodies described in the first aspect or any one embodiment of the first aspect by executing the computer instructions.

[0037] According to a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, which stores computer instructions, and the computer instructions are used to enable the computer to execute the shortwave radiation parameterization method of nearshore water bodies described in the first aspect or any one embodiment of the first aspect.

[0038] The shortwave radiation parameterization method for nearshore water bodies provided in the present application obtains the ratio parameter of the first wavelength light in the shortwave radiation, the ratio parameter of the second wavelength light in the shortwave radiation, the parameter of the first wavelength light in the water body penetration process, and the parameter of the second wavelength light in the water body penetration process, and uses the corresponding parameters to determine the first penetration parameter and the second penetration parameter. Thereafter, the shortwave radiation penetration parameter of the nearshore water body is obtained by combining the first penetration parameter and the second penetration parameter, thereby achieving the purpose of parameterizing the shortwave radiation. This is conducive to the subsequent simulation of the solar shortwave radiation penetration process based on the obtained shortwave radiation parameters, so as to optimize the analysis and research of ocean thermodynamic processes and marine ecosystems. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0040] Figure 1 A flow chart of a method for parameterizing shortwave radiation of nearshore water bodies provided in an embodiment of the present application.

[0041] Figure 2 A schematic diagram of a structural block diagram of a shortwave radiation parameterization device for nearshore water bodies provided in an embodiment of the present application.

[0042] Figure 3 A schematic diagram of a structural block diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] like Figure 1 As shown, the embodiment of the present application provides a shortwave radiation parameterization method for nearshore water bodies, including:

[0045] S1. Obtain a parameter of the ratio of the first wavelength light to the shortwave radiation, a parameter of the second wavelength light to the shortwave radiation, a parameter of the first wavelength light during water penetration, and a parameter of the second wavelength light during water penetration, where the first wavelength light is non-infrared light and the second wavelength light is infrared light.

[0046] In this embodiment, the proportion parameter of the first wavelength light in the short-wave radiation and the proportion parameter of the second wavelength light in the short-wave radiation are percentages, and the sum of the proportion parameter of the first wavelength light in the short-wave radiation and the proportion parameter of the second wavelength light in the short-wave radiation is 100%. The proportion setting can be set according to user needs, for example: refer to the proportion coefficient of short-wave radiation in infrared light, the proportion coefficient of short-wave radiation in ultraviolet light, and the proportion coefficient of short-wave radiation in visible light under the same nearshore water body given / recorded in existing literature.

[0047] In this embodiment, obtaining parameters of the first wavelength light during water penetration includes:

[0048] Obtaining a diffuse attenuation coefficient of light of the first wavelength, wherein obtaining the diffuse attenuation coefficient of light of the first wavelength further includes: obtaining water depth parameters of a nearshore water body, a suspended matter concentration of the nearshore water body, and solar zenith angle parameters corresponding to the nearshore water body; calculating the diffuse attenuation coefficient of light of the first wavelength based on the water depth parameters of the nearshore water body, the suspended matter concentration of the nearshore water body, and the solar zenith angle parameters corresponding to the nearshore water body; and determining parameters of light of the first wavelength during water penetration using the diffuse attenuation coefficient of light of the first wavelength.

[0049] In this embodiment, obtaining parameters of the second wavelength light during water penetration includes:

[0050] Obtaining the attenuation coefficient of the second wavelength of light includes: obtaining a water depth parameter of a nearshore water body, a suspended matter concentration of the nearshore water body, and a solar zenith angle parameter corresponding to the nearshore water body; calculating the attenuation coefficient of the second wavelength of light based on the water depth parameter of the nearshore water body, the suspended matter concentration of the nearshore water body, and the solar zenith angle parameter corresponding to the nearshore water body; and determining parameters of the second wavelength of light during water penetration using the attenuation coefficient of the second wavelength of light.

[0051] In an embodiment of the present application, water depth parameters are used to determine the propagation distance and attenuation of light; suspended matter concentration is used to determine the scattering and absorption of light; and the solar zenith angle is used to determine the incident angle and propagation path of light. Factors such as water depth parameters, suspended matter concentration, and solar zenith angle are then incorporated into the calculation, making the parameterization method more comprehensive and accurate.

[0052] S2. Determine a first penetration parameter of the shortwave radiation in the first wavelength light based on a parameter of the ratio of the first wavelength light to the shortwave radiation and a parameter of the first wavelength light during water penetration.

[0053] In this embodiment, a first penetration parameter of the shortwave radiation in the first wavelength light is obtained by multiplying a parameter of the ratio of the first wavelength light to the shortwave radiation and a parameter of the first wavelength light in the process of penetrating water.

[0054] S3, determining a second penetration parameter of the shortwave radiation in the second wavelength light based on a parameter of the ratio of the second wavelength light to the shortwave radiation and a parameter of the second wavelength light during water penetration.

[0055] In this embodiment, the second penetration parameter of the shortwave radiation in the second wavelength light is obtained by multiplying the ratio parameter of the second wavelength light to the shortwave radiation and the parameter of the second wavelength light in the water body penetration process.

[0056] S4, determining a shortwave radiation penetration parameter of the nearshore water body based on a first penetration parameter of the shortwave radiation in the first wavelength light and a second penetration parameter of the shortwave radiation in the second wavelength light.

[0057] In this embodiment, the shortwave radiation penetration parameter of the nearshore water body is obtained by summing the first penetration parameter of the shortwave radiation in the first wavelength light and the second penetration parameter of the shortwave radiation in the second wavelength light.

[0058] The shortwave radiation parameterization method for nearshore water bodies provided in the present application obtains the ratio parameter of the first wavelength light in the shortwave radiation, the ratio parameter of the second wavelength light in the shortwave radiation, the parameter of the first wavelength light in the water body penetration process, and the parameter of the second wavelength light in the water body penetration process, and uses the corresponding parameters to determine the penetration parameter of the first wavelength light and the penetration parameter of the second wavelength light. Then, the penetration parameter of the first wavelength light and the penetration parameter of the second wavelength light are combined to obtain the shortwave radiation penetration parameter of the nearshore water body, thereby achieving the purpose of parameterizing the shortwave radiation. This is conducive to the subsequent simulation of the solar shortwave radiation penetration process based on the obtained shortwave radiation parameters, so as to optimize the analysis and research of ocean thermodynamic processes and marine ecosystems.

[0059] In addition, the shortwave radiation parameterization method for nearshore water bodies provided in this application can parameterize shortwave radiation and more accurately simulate the penetration process of solar shortwave radiation in nearshore water bodies.

[0060] Optionally, obtain the suspended matter concentration of nearshore waters, including:

[0061] Obtain the backscattering coefficient of the target band and the pure water backscattering coefficient of the target band;

[0062] Calculate the difference between the backscatter coefficient of the target band and the backscatter coefficient of pure water in the target band to determine the backscatter coefficient of suspended particles;

[0063] Determine the suspended matter concentration in nearshore waters based on the backscatter coefficient of suspended particulate matter;

[0064] and / or,

[0065] Obtaining the backward absorption coefficient of the target band and the pure water backward absorption coefficient of the target band;

[0066] Calculate the difference between the backward absorption coefficient of the target band and the backward absorption coefficient of pure water in the target band to determine the backward absorption coefficient of suspended particulate matter;

[0067] The suspended matter concentration in nearshore waters is determined based on the backward absorption coefficient of suspended particulate matter.

[0068] Optionally, the scattering coefficient and absorption coefficient (eg, backscattering coefficient, backabsorption coefficient) provided in the present application may also be determined through empirical values ​​or obtained using a scattering coefficient model and an absorption coefficient model with given threshold conditions.

[0069] Optionally, the target wavelength band is 490 nm.

[0070] Optionally, the suspended matter concentration of the nearshore water body includes sediment concentration, and the sediment may be silt.

[0071] The shortwave radiation parameterization method for nearshore water bodies provided in the embodiment of the present application is calculated by introducing multiple influencing factors, such as the water depth parameter, suspended matter concentration, and solar zenith angle parameter of the water body; the shortwave radiation parameterization of the water body is realized, thereby more finely simulating the shortwave radiation penetration process, further accurately simulating the changes in seawater temperature and water flow, and more comprehensively and accurately reflecting the turbidity level of the water body.

[0072] To further understand the above steps, steps S1 to S4 are expressed using mathematical expressions, which can be specifically:

[0073]

[0074] Among them, Tr represents the short-wave radiation penetration parameter, F vis It is expressed as the ratio parameter of the first wavelength light (visible light and ultraviolet light) to the short-wave radiation. It is expressed as the parameter of the first wavelength light in the process of penetrating water, (1-F vis ) is expressed as the ratio of the second wavelength light (infrared light) to the short-wave radiation, Expressed as a parameter of the second wavelength light during penetration into water.

[0075] Among the parameters of the first wavelength light in the process of penetrating water and the parameters of the second wavelength light in the process of penetrating water, K vis Expressed as the diffuse attenuation coefficient of the first wavelength of light, K IR Expressed as the diffuse attenuation coefficient of the second wavelength light, C SPM is expressed as the suspended matter concentration of the nearshore water body, z is expressed as the water depth parameter of the nearshore water body, θ α Expressed as the solar zenith angle parameter corresponding to nearshore water bodies.

[0076] Specifically, calculate the diffuse attenuation coefficient K of the first wavelength lightvis It can be obtained by the following calculation formula:

[0077]

[0078] Calculate the diffuse attenuation coefficient K of the second wavelength light IR It can be obtained by the following calculation formula:

[0079] K IR (C SPM ,z,θ α )=[0.560+2.304 / (0.001+z) 0.65 ](1+0.002θ α )

[0080] In this embodiment, the suspended matter concentration can be pre-collected by a concentration sensor or estimated based on past experience, the water depth parameter z can also be obtained by a distance sensor, and the solar zenith angle parameter can also be obtained by relevant measuring instruments, such as a longitude and latitude meter.

[0081] In the embodiment of the present application, since the e-fold penetration depth of shortwave radiation is continuously distributed in space, the shortwave radiation penetration process of different water bodies can be precisely simulated. In addition, since the suspended matter concentration of nearshore water bodies is introduced, the turbidity degree of the water body in the nearshore estuary area can be parameterized and analyzed to facilitate the measurement of changes in water turbidity.

[0082] In this embodiment, the turbid water body of the nearshore estuary with a wavelength of 490 nm is used as an example for explanation:

[0083] Before calculating the diffuse attenuation coefficient of the first wavelength light and the diffuse attenuation coefficient of the second wavelength light, it is necessary to obtain the absorption coefficient a and / or the backscattering coefficient b. Specifically:

[0084] Calculate the absorption coefficient a, which can be:

[0085] a=a w +a SPM ,

[0086] Its 490nm band pure water absorption coefficient a w =0.0015; in addition, the absorption coefficient of suspended particulate matter a is obtained based on experimental / empirical results SPM =a SPM (440nm)*e (-0.0103*(490-440)) , where a SPM (440nm)=0.1452*C SPM +1.8255;

[0087] It should be noted that chlorophyll and yellow matter can be ignored because their amounts are small relative to suspended particulate matter.

[0088] Calculate the backscatter coefficient b, which can be:

[0089] b=b w +b SPM

[0090] Among them, the backscattering coefficient of pure water in the 490nm band is b w :

[0091] b w =0.00155;

[0092] Backscattering coefficient of suspended particles:

[0093] b SPM =b SPM (532nm)*(532 / 490) 1.3856

[0094] Among them, b SPM (532nm)=0.0096*C SPM

[0095] Afterwards, the diffuse attenuation coefficient of the nearshore water body is calculated, which may be the diffuse attenuation coefficient of the first wavelength light and the diffuse attenuation coefficient of the second wavelength light. Specifically:

[0096] The diffuse attenuation coefficient of the first wavelength light can be:

[0097]

[0098] Among them, K1 and K2 are determined by a and b. After correction of the solar zenith angle, IOP is expressed as the suspended matter concentration, where K1 and K2 are obtained by the following formula:

[0099] K1(C SPM )=[χ0+χ1(0.0015+(0.1452*C SPM +1.8255)*e( -0.0103*(490-440)) ) 0.5 +χ2(0.00155+(0.0096*C SPM )*(532 / 490) 1.3856 )](1+α0sinθ α )

[0100] K2(C SPM )=[ζ0+ζ1(0.0015+(0.1452*C SPM +1.8255)*e( -0.0103*(490-440)) )+ζ2(0.00155+(0.0096*C SPM )*(532 / 490) 1.3856)](α1+α2sinθ α )

[0101] Among them, K1(C SPM ) and K2(C SPM ) are used to express coefficients related to suspended matter concentration, χ0, χ1, χ2, ζ0, ζ1, ζ2, α0, α1, α2 are fixed coefficients, which are -0.057, 0.482, 4.221, 0.183, 0.702, -2.567, 0.09, 1.465, -0.667, respectively. The values ​​are determined according to experience.

[0102] The diffuse attenuation coefficient of the second wavelength light can be:

[0103] K IR C SPM ,z,θ α )=[0.560+2.304 / (0.001+z) 0.65 ](1+0.002θ α )

[0104] The method steps and calculation formulas provided in the embodiments of the present application are used to parameterize the shortwave radiation of nearshore water bodies. The parameterization operation process is simple, which makes it easy for researchers and relevant technical personnel to obtain the required shortwave radiation parameters and simplify the operation process.

[0105] In addition, it should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0106] Accordingly, please refer to Figure 2 The embodiment of the present invention provides a shortwave radiation parameterization device for a nearshore water body, the device comprising:

[0107] Acquisition module 1 is used to obtain the ratio parameter of the first wavelength light to the shortwave radiation, the ratio parameter of the second wavelength light to the shortwave radiation, the parameter of the first wavelength light during the water body penetration process, and the parameter of the second wavelength light during the water body penetration process. For details, please refer to step S1.

[0108] The first determining module 2 is used to determine the first penetration parameter of the shortwave radiation in the first wavelength light based on the ratio parameter of the first wavelength light to the shortwave radiation and the parameter of the first wavelength light in the water body penetration process. For details, please refer to step S2.

[0109] The second determining module 3 is used to determine the second penetration parameter of the shortwave radiation in the second wavelength light based on the ratio parameter of the second wavelength light to the shortwave radiation and the parameter of the second wavelength light in the water body penetration process. For details, please refer to step S3.

[0110] The third determining module 4 is used to determine the shortwave radiation penetration parameter of the nearshore water body according to the first penetration parameter of the shortwave radiation in the first wavelength light and the second penetration parameter of the shortwave radiation in the second wavelength light. For details, please refer to step S4.

[0111] The embodiment of the present invention further provides an electronic device, such as Figure 3 As shown, the electronic device may include a processor 51 and a memory 52, wherein the processor 51 and the memory 52 may be connected via a bus or other means. Figure 3 The bus connection is taken as an example.

[0112] The processor 51 may be a central processing unit (CPU). The processor 51 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or a combination of the above chips.

[0113] The memory 52 is a non-transitory computer-readable storage medium that can be used to store non-transitory software programs, non-transitory computer executable programs and modules, such as the program instructions / modules corresponding to the method for shielding keys of a vehicle-mounted display device in an embodiment of the present invention (for example, Figure 2 The processor 51 executes various functional applications and data processing of the processor by running the non-transient software programs, instructions, and modules stored in the memory 52, thereby implementing the shortwave radiation parameterization method for nearshore water bodies in the above-mentioned method embodiment.

[0114] The memory 52 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created by the processor 51, etc. In addition, the memory 52 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 52 may optionally include a memory remotely located relative to the processor 51, and these remote memories may be connected to the processor 51 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0115] The one or more modules are stored in the memory 52 and when executed by the processor 51, perform the following steps: Figure 1 The shortwave radiation parameterization method of the nearshore water body in the illustrated embodiment.

[0116] The shortwave radiation parameterization method and apparatus for nearshore water bodies provided in the embodiments of this application can be applied to scenarios such as ocean monitoring and environmental monitoring. Specifically, by integrating this method into relevant electronic equipment or monitoring systems, automated and intelligent shortwave radiation parameter monitoring and analysis can be achieved, thereby improving work efficiency and data quality.

[0117] For details of the above electronic equipment, please refer to Figure 1 The corresponding descriptions and effects in the embodiments shown can be understood and will not be repeated here.

[0118] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD), or a solid-state drive (SSD). The storage medium can also include a combination of the above-mentioned types of memory.

[0119] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A method for parameterizing shortwave radiation of nearshore water bodies, characterized in that: include: Obtaining a parameter of the ratio of the first wavelength light to the shortwave radiation, a parameter of the second wavelength light to the shortwave radiation, a parameter of the first wavelength light during water penetration, and a parameter of the second wavelength light during water penetration, wherein the first wavelength light is non-infrared light and the second wavelength light is infrared light; Determining a first penetration parameter of the shortwave radiation in the first wavelength light based on a parameter of the ratio of the first wavelength light to the shortwave radiation and a parameter of the first wavelength light during water penetration; Determining a second penetration parameter of the shortwave radiation in the second wavelength light based on a parameter of the ratio of the second wavelength light to the shortwave radiation and a parameter of the second wavelength light during water penetration; The shortwave radiation penetration parameter of the nearshore water body is determined based on the first penetration parameter of the shortwave radiation in the first wavelength light and the second penetration parameter of the shortwave radiation in the second wavelength light.

2. The shortwave radiation parameterization method for nearshore water bodies according to claim 1 is characterized in that: Obtaining parameters of the first wavelength light during water penetration, including: obtaining a diffuse attenuation coefficient of light of a first wavelength; The diffuse attenuation coefficient of the first wavelength light is used to determine parameters of the first wavelength light during the water penetration process.

3. The shortwave radiation parameterization method for nearshore water bodies according to claim 2 is characterized in that: The obtaining of the diffuse attenuation coefficient of the first wavelength light includes: Obtain the water depth parameters, suspended matter concentration and solar zenith angle parameters of the nearshore water body; The diffuse attenuation coefficient of the first wavelength light is calculated according to the water depth parameter of the nearshore water body, the suspended matter concentration of the nearshore water body and the solar zenith angle parameter corresponding to the nearshore water body.

4. The shortwave radiation parameterization method for nearshore water bodies according to claim 1 is characterized in that: Obtaining parameters of the second wavelength light during water penetration, including: obtaining an attenuation coefficient of light of a second wavelength; The attenuation coefficient of the second wavelength light is used to determine parameters of the second wavelength light during the water penetration process.

5. The shortwave radiation parameterization method for nearshore water bodies according to claim 4 is characterized in that: The obtaining of the attenuation coefficient of the second wavelength light includes: Obtaining a water depth parameter of a nearshore water body, a suspended matter concentration of the nearshore water body, and a solar zenith angle parameter corresponding to the nearshore water body; The attenuation coefficient of the second wavelength light is calculated according to the water depth parameter of the nearshore water body, the suspended matter concentration of the nearshore water body and the solar zenith angle parameter corresponding to the nearshore water body.

6. The shortwave radiation parameterization method for nearshore water bodies according to claim 3 is characterized in that: Obtain the suspended matter concentration of nearshore waters, including: Obtain the backscattering coefficient of the target band and the pure water backscattering coefficient of the target band; Calculating the difference between the backscattering coefficient of the target band and the backscattering coefficient of pure water in the target band to determine the backscattering coefficient of suspended particles; determining the suspended matter concentration of the nearshore water body according to the backscatter coefficient of the suspended particulate matter; and / or, Obtaining the backward absorption coefficient of the target band and the pure water backward absorption coefficient of the target band; Calculating the difference between the backward absorption coefficient of the target band and the backward absorption coefficient of pure water in the target band to determine the backward absorption coefficient of suspended particulate matter; The suspended matter concentration of the nearshore water body is determined according to the suspended particulate matter backward absorption coefficient.

7. The shortwave radiation parameterization method for nearshore water bodies according to claim 6, characterized in that: The target wavelength is 490 nm.

8. The shortwave radiation parameterization method for nearshore water bodies according to claim 3 is characterized in that: The suspended matter concentration of the nearshore water body includes the sediment concentration.

9. A shortwave radiation parameterization device for nearshore water bodies, characterized in that: include: An acquisition module, configured to acquire a parameter of the ratio of the first wavelength light to the shortwave radiation, a parameter of the second wavelength light to the shortwave radiation, a parameter of the first wavelength light during water penetration, and a parameter of the second wavelength light during water penetration; a first determining module, configured to determine a first penetration parameter of the shortwave radiation in the first wavelength light based on a parameter of a ratio of the first wavelength light to the shortwave radiation and a parameter of the first wavelength light during water penetration; a second determining module, configured to determine a second penetration parameter of the shortwave radiation in the second wavelength light based on a parameter of a ratio of the second wavelength light to the shortwave radiation and a parameter of the second wavelength light during water penetration; The third determining module is configured to determine a shortwave radiation penetration parameter of the nearshore water body according to a first penetration parameter of the shortwave radiation in the first wavelength light and a second penetration parameter of the shortwave radiation in the second wavelength light.

10. An electronic device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the shortwave radiation parameterization method for nearshore water bodies according to any one of claims 1 to 8 by executing the computer instructions.

11. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the shortwave radiation parameterization method for nearshore water bodies according to any one of claims 1 to 8.

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