Device and method for measuring equivalent weight of snow water

Abstract

The invention discloses a snow water equivalent measuring device and method, and relates to the field of water resource evaluation and management, and the device comprises a support frame, a boundary snow accumulation plate, a weighing snow accumulation plate, a weighing module and a snow depth measuring mechanism. The supporting frame is fixed to the flat ground, the snow accumulation plate is installed on the supporting frame, the boundary snow accumulation plate is arranged on the periphery of the weighing snow accumulation plate in a surrounding mode, and the boundary snow accumulation plate and the weighing snow accumulation plate are in clearance fit and do not affect each other. The weighing module is installed at the bottom of the weighing snow accumulation plate and used for obtaining the weight of a snow accumulation layer on the weighing snow accumulation plate. The snow depth measuring mechanism is installed on one side of the boundary snow accumulation plate and used for obtaining the snow accumulation depth on the weighing snow accumulation plate. The design of the device can reduce the measurement difficulty, improve the measurement efficiency and save the measurement cost; and meanwhile, accurate measurement with high time resolution can be realized, and the measurement accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the field of water resource assessment and management, and in particular to a snow water equivalent measurement device and method. Background Art

[0002] Snow is an extremely critical component in the global climate system. As an important form of water resource reserve on the earth's surface, snow has a profound impact on regional and global hydrological cycles, ecological balance and climate evolution. Snow water equivalent is an important indicator to measure the water equivalent contained in snow. It indicates the depth of water produced by the melting of snow per unit area, usually in millimeters or centimeters. In many cold regions and high-altitude mountainous areas, snow is one of the main sources of local water resources. Understanding snow water equivalent plays an irreplaceable role in rationally planning water resource utilization, predicting flood disasters, and assessing the health of ecosystems.

[0003] Snow water equivalent measurement methods mainly include field measurement and estimation based on remote sensing data. Field measurement methods include direct measurement using tools such as snow pillows and snow pits. Snow pillows are pressure sensors installed on the snow surface that measure the hydrostatic pressure to estimate snow water equivalent. However, this method has limitations and the installation conditions are relatively harsh. It must be installed on a sand bed with a flat surface and a protective surface. Snow pit measurement involves manually digging snow pits and measuring parameters such as the depth and density of snow to calculate snow water equivalent. This method is not only labor-intensive, but also has low measurement efficiency and is difficult to promote and apply in large areas. The snow water equivalent estimation method based on remote sensing data uses visible light and near-infrared remote sensing data to obtain snow area and snow cover information. Remote sensing data has deficiencies in resolution and data processing algorithms, and the estimation accuracy of snow water equivalent is relatively low. The accuracy and reliability of the data need to be improved. Summary of the invention

[0004] The objectives of the present invention include, for example, providing a snow water equivalent measurement device and method, which can reduce measurement difficulty, improve measurement efficiency, and save measurement costs.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a snow water equivalent measuring device, comprising:

[0007] A weighing snow board, a boundary snow board, a weighing module and a snow depth measuring mechanism; the boundary snow board is arranged around the weighing snow board, and the boundary snow board and the weighing snow board are clearance-matched; the weighing module is installed at the bottom of the weighing snow board, and is used to obtain the weight of the snow layer on the weighing snow board; the snow depth measuring mechanism is installed on the outer side of the boundary snow board, and is used to obtain the depth of snow on the weighing snow board.

[0008] In an optional embodiment, the boundary snow board includes a plurality of sub-boundary boards, which are installed and placed in sequence with a hollow area left; the weighing snow board is located in the hollow area of ​​the boundary snow board, and the four sides of the weighing snow board are gap-matched with each of the sub-boundary boards.

[0009] In an optional embodiment, the snow water equivalent measuring device further includes a support frame, and the weighing module and the plurality of sub-boundary plates are mounted on the support frame.

[0010] In an optional embodiment, the support frame includes a plurality of support frames and two fixing rods, the plurality of support frames are arranged at intervals, and two ends of the support frames are respectively fixedly connected to the two fixing rods; the sub-boundary plate is fixed to the corresponding support frame.

[0011] In an optional embodiment, the weighing module includes a mounting frame and a plurality of weighing sensors, the plurality of weighing sensors are all mounted on the mounting frame, and the mounting frame is mounted on the supporting frame; the weighing snowboard is connected to the plurality of weighing sensors at the same time.

[0012] In an optional embodiment, the weighing module further includes a protective cover, which is fixed on the mounting frame. The protective cover cooperates with the mounting frame to form a protective space, and the weighing sensor is located in the protective space.

[0013] In an optional embodiment, the snow water equivalent measuring device also includes a data measurement controller, a data acquisition controller and a power supply, the data measurement controller is connected to the weighing module, and the data acquisition controller is connected to the data measurement controller; the power supply module simultaneously provides electrical energy to the data measurement controller, the data acquisition controller and the weighing module.

[0014] In an optional embodiment, the data measurement controller is integrated into the weighing module; the snow water equivalent measurement device also includes a first fixed bracket, and the data acquisition controller and the power supply module are both installed on the first fixed bracket.

[0015] In an optional embodiment, the power module includes a connected solar photovoltaic panel assembly, a battery and a power management module.

[0016] In an optional embodiment, the snow depth measuring mechanism includes a snow depth sensor, a fixing part, a diagonal brace tube, a cross brace tube, a steering ring, a fixing ring and a second fixing bracket, the snow depth sensor is mounted on the fixing part, the fixing part is mounted on the steering ring, the steering ring is rotatably sleeved on the outside of the second fixing bracket, and the second fixing bracket is used to support the ground; the diagonal brace tube is connected to the fixing part and the cross brace tube at the same time, and the cross brace tube is rotatably sleeved on the outside of the second fixing bracket; the snow depth sensor is used to obtain the depth of snow on the weighing snow board.

[0017] In a second aspect, the present invention provides a snow water equivalent measurement method, which is applied to the snow water equivalent measurement device described in any one of the aforementioned embodiments, and the method comprises the following steps:

[0018] Fix the support frame on a flat ground, fix the boundary snow plate and the weighing module on the support frame and arrange them horizontally, install the weighing snow plate on the weighing module; install the snow depth measuring mechanism on the outer side of the boundary snow plate at a predetermined height;

[0019] According to the formula SWE = ρ s ×h s , s =m s / V s and V s =S×h s Derived SWE = m s / S, where m s is the weight of the snow layer on the weighing snowboard obtained by the weighing module, ρ s is the average density of the snow layer, S is the area of ​​the weighing snowboard in contact with the snow, h s V is the snow depth measured by the snow depth measurement mechanism, s To weigh the volume of snow on the snowboard, SWE is snow water equivalent.

[0020] The beneficial effects of the embodiments of the present invention include, for example:

[0021] In summary, the snow water equivalent measuring device provided in this embodiment, after the weighing snow board and the boundary snow board are laid flat on the surface, the two cooperate together to carry the snow, and the snow accumulates on the weighing snow board and the boundary snow board. As the snow depth increases, the snow on the boundary snow board surrounds the outside of the snow on the weighing snow board, so that the thickness of the snow layer on the weighing snow board is basically equal everywhere, and the shape of the snow layer on the weighing snow board is also stable. Since the weighing snow board and the boundary snow board are laid flat, the weighing module can more accurately measure the weight of the snow on the corresponding weighing snow board. The weighing module can obtain the weight of the snow layer on the weighing snow board in real time. The snow depth can be directly measured by the snow depth sensor. According to the formula SWE=ρs ×h s , s =m s / V s and V s =S×h s It is possible to calculate SWE = m s / S, also known as snow water equivalent. With this design, corresponding data can be obtained in different time periods, thereby achieving accurate measurement with high time resolution, high measurement efficiency and low measurement cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic diagram of a snow water equivalent measuring device according to an embodiment of the present application;

[0024] Figure 2 A schematic diagram of a support frame according to an embodiment of the present application;

[0025] Figure 3 A schematic diagram of a snow weighing board according to an embodiment of the present application;

[0026] Figure 4 A schematic diagram of a weighing module according to an embodiment of the present application;

[0027] Figure 5 This is a schematic diagram of the installation of the snow depth sensor according to an embodiment of the present application.

[0028] icon:

[0029] 100-weighing snow board; 200-boundary snow board; 210-first board; 220-second board; 230-third board; 240-fourth board; 250-fifth board; 260-sixth board; 300-weighing module; 310-mounting frame; 320-weighing sensor; 330-protective cover; 400-support frame; 410-first fixing rod; 420-second fixing rod; 430-first supporting frame; 440-second supporting frame; 450 -third supporting frame; 460-fourth supporting frame; 470-fifth supporting frame; 480-sixth supporting frame; 500-data measurement controller; 600-data acquisition controller; 700-power module; 800-first fixed bracket; 900-snow depth measuring mechanism; 910-snow depth sensor; 920-fixed; 930-diagonal brace tube; 940-transverse brace tube; 950-steering ring; 960-fixed ring; 970-second fixed bracket. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0035] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0036] Please refer to Figure 1-Figure 5 The present embodiment provides a snow water equivalent measuring device, comprising a weighing snow board 100, a boundary snow board 200, a weighing module 300 and a snow depth measuring mechanism 900; the boundary snow board 200 is arranged around the weighing snow board 100, and the boundary snow board 200 and the weighing snow board 100 are clearance-matched; the weighing module 300 is installed at the bottom of the weighing snow board 100, and is used to obtain the weight of the snow layer on the weighing snow board 100. The snow depth measuring mechanism 900 is installed on the outer side of the boundary snow board 200, and is used to obtain the snow depth on the weighing snow board 100.

[0037] As described above, the method of using the snow water equivalent measuring device provided in this embodiment is as follows:

[0038] The weighing snowboard 100 and the boundary snowboard 200 are installed on the support bracket, and the two cooperate to carry snow. The snow accumulates on the weighing snowboard 100 and the boundary snowboard 200. As the depth of snow increases, the snow on the boundary snowboard 200 surrounds the outside of the snow on the weighing snowboard 100. The thickness of the snow layer is basically equal everywhere, which also makes the shape of the snow layer on the weighing snowboard 100 stable. In addition, since the weighing snowboard 100 and the boundary snowboard 200 are laid flat, the weighing module 300 can more accurately measure the weight of the snow on the corresponding weighing snowboard 100. The weighing module 300 can obtain the weight of the snow layer on the weighing snowboard 100 in real time, and the snow depth measuring mechanism 900 can obtain the depth of snow on the weighing snowboard 100. According to the formula SWE=m / (ρ·S), SWE, that is, snow water equivalent, can be calculated. With such a design, corresponding measurement data can be obtained in different time periods, thereby achieving accurate measurement with high time resolution, high measurement efficiency and low measurement cost.

[0039] Since the weighing snow board 100 and the boundary snow board 200 are clearance-matched, that is, there is a gap or clearance between the two, and the gap is controlled between 1mm-3mm, when the weighing module 300 obtains the weight of the snow layer on the weighing snow board 100, it will not be affected by the friction between the weighing snow board 100 and the boundary snow board 200, and the weighing result is more accurate.

[0040] The following embodiments illustrate the details of the snow water equivalent measuring device of the present application by way of examples.

[0041] Please refer to Figure 1-Figure 5In this embodiment, the snow water equivalent measuring device optionally includes a weighing snowboard 100, a boundary snowboard 200, a weighing module 300, a support frame 400, a data measurement controller 500, a data acquisition controller 600, a power module 700 and a first fixed support 800. The boundary snowboard 200 and the weighing module 300 are both fixed 920 on the support frame 400, the weighing snowboard 100 is fixed 920 on the weighing module 300, and the support frame 400 is fixed 920 on the horizontal ground with a gravel layer to ensure the levelness and stability of the weighing snowboard 100 and the boundary snowboard 200. In addition, the boundary snowboard 200 is arranged around the weighing snowboard 100, and the boundary snowboard 200 and the weighing snowboard 100 are gap-matched. The data measurement controller 500 is integrated on the weighing module 300, and the data acquisition controller 600 and the power module 700 are both mounted on the first fixing bracket 800, and the first fixing bracket 800 is fixed 920 to the ground surface. The weighing module 300 is connected to the data measurement controller 500, and the data measurement controller 500 is connected to the data acquisition controller, and the weighing module 300, the data measurement controller 500 and the data acquisition controller 600 are all powered by the power module 700.

[0042] With such a design, the data measurement controller 500 can collect the electrical signals of the weighing module 300 and can transmit the processed electrical signals to the data acquisition controller 600 , which are stored by the data acquisition controller 600 , facilitating preservation and retrieval.

[0043] Optionally, the weighing snowboard 100 can be provided as a rectangular plate, which has a regular structure, is easy to manufacture, and is easy to obtain the area of ​​the board surface of the weighing snowboard 100, thereby improving the accuracy of the parameter S in the formula h=m / (ρ·S). The weighing snowboard 100 can be fixed 920 on the weighing module 300 by screws. Obviously, the weighing snowboard 100 can also be other shapes such as a circle.

[0044] In addition, the size of the short side of the weighing snow board 100 may be two-thirds of the size of the long side.

[0045] Please refer to Figure 1Optionally, the boundary snow board 200 can be set as a split structure. For example, the boundary snow board 200 includes six sub-boundary boards, each of which can be set as a rectangular board. The shape and size of the sub-boundary boards can be consistent with the shape and size of the weighing snow board 100, which is convenient for processing and manufacturing. Each sub-boundary board can be fixed 920 to the support frame 400 by fasteners such as bolts. The six sub-boundary boards can be spliced ​​together at one time to form a hollow area. The weighing snow board 100 is located in the hollow area. There are gaps between the surrounding sides of the weighing snow board 100 and the inner sides of the corresponding sub-boundary boards. For the convenience of description, the six sub-boundary boards are respectively a first board 210, a second board 220, a third board 230, a fourth board 240, a fifth board 250 and a sixth board 260.

[0046] It should be noted that, in other embodiments, the number of sub-boundary plates is not limited to six, and the number of sub-boundary plates can be multiple and can be designed as needed.

[0047] Please refer to Figure 2 In this embodiment, optionally, the support frame 400 includes six support frames and two fixed 920 rods. For the convenience of description, the two support frames are respectively the first fixed rod 410 and the second fixed rod 420, and the six support frames are respectively the first support frame 430, the second support frame 440, the third support frame 450, the fourth support frame 460, the fifth support frame 470 and the sixth support frame 480. The first fixed rod 410 and the second fixed rod 420 are arranged at intervals relative to each other, and the two are parallel to each other. The first support frame 430, the second support frame 440, the third support frame 450, the fourth support frame 460, the fifth support frame 470 and the sixth support frame 480 are all located between the two fixed 920 rods and are arranged horizontally in sequence, and the two ends of each support frame are respectively fixedly connected to the two fixed 920 rods 920.

[0048] It should be understood that the fixing rod 920 and the supporting frame can be set as metal profiles, which have high structural strength, long service life, and are not easy to deform. In addition, the number of supporting frames is not limited to six. In some embodiments, the number of supporting frames is multiple and can be selected as needed.

[0049] Please combine Figure 4In this embodiment, optionally, the weighing module 300 includes a mounting frame 310, four weighing sensors 320 and two protective covers 330. The four weighing sensors 320 are divided into two groups. The two weighing sensors 320 in the same group are distributed on one side of the mounting frame 310. The two protective covers 330 are fixed 920 on the mounting frame 310. Each protective cover 330 forms a protective space with the mounting frame 310. The two weighing sensors 320 in the same group correspond to one protective space. Part of the weighing sensor 320 is located in the corresponding protective space. By setting the protective cover 330, the probability of the weighing sensor 320 being damaged by falling objects can be reduced. The weighing snowboard 100 is connected to the four weighing sensors 320 at the same time by fasteners such as bolts. The data measurement controller 500 is integrated on the mounting frame 310.

[0050] It should be understood that in other embodiments, the number of weighing sensors 320 is not limited to four, and the number of weighing sensors 320 can be multiple and can be selected as needed.

[0051] In addition, the weighing sensor 320 can be a capacitive sensor, a piezoresistive sensor or an inductive sensor, etc. In this embodiment, the weighing sensor 320 uses a piezoresistive sensor, which has the advantages of high sensitivity, high precision, fast response speed, good stability, small size and low power consumption.

[0052] In addition, the protective cover 330 can be a metal cover with high structural strength and long service life.

[0053] In this embodiment, optionally, the power module 700 may include a solar photovoltaic panel, which is mounted on a first fixed bracket 800, and the first fixed bracket 800 is fixed 920 to the ground surface to generate electricity using solar energy to improve energy utilization.

[0054] The installation method of the snow water equivalent measuring device provided in this embodiment is as follows:

[0055] First, the support frame 400 is assembled, and then the short sides of the first plate 210 and the second plate 220 are butted together, and the first plate 210 and the second plate 220 are simultaneously fixed 920 on the first support frame 430 and the second support frame 440, and the length direction of the first plate 210 and the second plate 220 is the arrangement direction of the first fixing rod 410 and the second fixing rod 420. The short sides of the fifth plate 250 and the sixth plate 260 are butted together, and the fifth plate 250 and the sixth plate 260 are simultaneously fixed 920 on the fifth support frame 470 and the sixth support frame 480. The third plate 230 is fixed 920 on the third supporting frame 450 and the fourth supporting frame 460, and the short sides of the third plate 230 are adjacent to the long sides of the first plate 210 and the fifth plate 250 respectively; the fourth plate 240 is fixed 920 on the third supporting frame 450 and the fourth supporting frame 460, and the short sides of the fourth plate 240 are connected to the long sides of the second plate 220 and the sixth plate 260 respectively, so that the six sub-boundary plates enclose a hollow area. Then, the mounting frame 310 is placed in the hollow area and fixed 920 with the third rod 450 and the fourth rod 460, and the weighing snow board 100 is connected to the four weighing sensors 320 by bolts, etc., and the two length sides of the weighing snow board 100 are adjacent to the third plate 230 and the fourth plate 240 respectively, and one short side of the weighing snow board 100 is in contact with the first plate 210 and the second plate 220 at the same time, and the other short side of the weighing snow board 100 is in contact with the fifth plate 250 and the sixth plate 260 at the same time, so that the weighing snow board 100 just fills the hollow area. The weighing snow board 100 and the six sub-boundary plates are supported by the support frame 400 and the mounting frame 310, so that the weighing snow board 100 and the six sub-boundary plates cooperate to form a stable structure for supporting the snow layer.

[0056] It should be noted that during the accumulation of the snow layer, in the absence of wind, its surface is roughly horizontal; in the presence of wind, the surface of the snow layer will be redistributed according to the terrain under the action of wind, and the weighing snow board 100 and the boundary snow board 200 that support the snow layer are arranged horizontally, and even the top of the redistributed snow layer is also horizontal. Therefore, the cross-section of the snow layer is basically equal everywhere and remains consistent with the top surface shape of the weighing snow board 100.

[0057] Please combine Figure 1 and Figure 5In this embodiment, optionally, the snow depth measuring mechanism 900 includes a snow depth sensor 910, a fixed part 920, a diagonal brace tube 930, a transverse brace tube 940, a steering ring 950, a fixed ring 960 and a second fixed bracket 970, the snow depth sensor 910 is installed on the fixed part 920, the fixed part 920 is installed on the steering ring 950, the steering ring 950 is rotatably sleeved on the outside of the second fixed bracket 970, and the second fixed bracket 970 is used to support the ground; the diagonal brace tube 930 is connected to the fixed part 920 and the transverse brace tube 940 at the same time, and the transverse brace tube 940 is rotatably sleeved on the outside of the second fixed bracket 970; the snow depth sensor 910 is used to obtain the depth of snow on the weighing snow board 100. In the initial state, the steering ring 950 and the cross brace tube 940 can be rotated as needed, so that the fixing 920, the diagonal brace tube 930 and the snow depth sensor 910 rotate together around the second fixed bracket 970, leaving the weighing snow plate 100 and the boundary snow plate 200, so that the snow can be accumulated smoothly. When it is necessary to measure the snow water equivalent, the snow depth sensor 910 is rotated to the top of the weighing snow plate 100, and the height of the snow depth sensor 910 is adjusted, and the snow depth sensor 910 is used to directly measure the snow depth on the weighing snow plate 100. It should be understood that the height adjustment of the snow depth sensor 910 can be achieved by lifting and lowering the steering ring 950 and the cross brace tube 940 relative to the second fixed bracket 970.

[0058] In addition, the snow depth sensor 910 may be an ultrasonic snow depth meter or a laser snow depth meter, etc.

[0059] This embodiment provides a snow water equivalent measurement device, which can achieve high time resolution and accurate measurement, and has the advantage of precise measurement. The advantages of the weighing sensor 320 and the data measurement controller 500 are combined to improve the validity and accuracy of the measurement data, reduce data redundancy, reduce energy consumption, and realize data sharing on the cloud server platform. Researchers can remotely monitor snowfall and snow water equivalent, thereby providing a method for scientific evaluation to manage water resources and hydrological cycles.

[0060] This embodiment also provides a snow water equivalent measurement method, which is applied to the snow water equivalent measurement device of the above embodiment, and the method includes the following steps:

[0061] The support frame 400 is fixed 920 on a flat ground, the boundary snow board 200 and the weighing module 300 are fixed 920 on the support frame 400, and the weighing snow board 100 is installed on the weighing module 300, so that the weighing snow board 100, the boundary snow board 200 and the weighing module 300 are all arranged horizontally. According to the formula SWE = ρ s ×h s , s =m s / V s and V s =S×hs Derived SWE = m s / S, where m s is the weight of the snow layer on the weighing snowboard 100 obtained by the weighing module 300, ρ s is the average density of the snow layer, V s is the volume of snow on the weighing snowboard 100 (100), S is the area of ​​the board surface of the weighing snowboard 100 in contact with the snow, and h s is the snow depth measured by the snow depth sensor 910 (910). In the formula, m s By directly obtaining it through the weighing sensor 320, S can be directly obtained when preparing the weighing snowboard 100. In this way, the measurement of the snow water equivalent SWE is more direct, the data error is small, and the accuracy of the measurement result is high.

[0062] In addition, when constructing the support frame 400, areas that may affect the instability of weighing, such as slopes, canyons, and beside rivers, can be avoided. The selected installation point should be relatively flat, open, and stable, and can be trimmed according to the ground conditions.

[0063] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A snow water equivalent measuring device, characterized in that: include: A weighing snow board (100), a boundary snow board (200), a weighing module (300) and a snow depth measuring mechanism (900); the boundary snow board (200) is arranged around the weighing snow board (100), and the boundary snow board (200) and the weighing snow board (100) are clearance-matched; the weighing module (300) is installed at the bottom of the weighing snow board (100) and is used to obtain the weight of the snow layer on the weighing snow board (100); the snow depth measuring mechanism (900) is installed on the outside of the boundary snow board (200) and is used to obtain the depth of snow on the weighing snow board (100).

2. The snow water equivalent measuring device according to claim 1, characterized in that: The boundary snow accumulation board (200) comprises a plurality of sub-boundary boards, which are installed and placed in sequence and leave a hollow area; the weighing snow accumulation board (100) is located in the hollow area of ​​the boundary snow accumulation board (200), and the four sides of the weighing snow accumulation board (100) are gap-matched with each of the sub-boundary boards.

3. The snow water equivalent measuring device according to claim 2, characterized in that: The snow water equivalent measuring device also includes a support frame (400), and the weighing module (300) and the plurality of sub-boundary plates are both mounted on the support frame (400).

4. The snow water equivalent measuring device according to claim 3, characterized in that: The support frame (400) comprises a plurality of support frames and two fixing (920) rods, the plurality of support frames are arranged at intervals, and two ends of the support frames are respectively fixed (920) connected to the two fixing (920) rods; the sub-boundary plate is fixed (920) on the corresponding support frame.

5. The snow water equivalent measuring device according to claim 3, characterized in that: The weighing module (300) comprises a mounting frame (310) and a plurality of weighing sensors (320), wherein the plurality of weighing sensors (320) are all mounted on the mounting frame (310), and the mounting frame (310) is mounted on the supporting frame (400); the weighing snowboard (100) is simultaneously connected to the plurality of weighing sensors (320).

6. The snow water equivalent measuring device according to claim 5, characterized in that: The weighing module (300) further comprises a protective cover (330), wherein the protective cover (330) is fixed (920) on the mounting frame (310), and the protective cover (330) cooperates with the mounting frame (310) to form a protective space, and the weighing sensor (320) is located in the protective space.

7. The snow water equivalent measuring device according to any one of claims 1 to 6, characterized in that: The snow water equivalent measuring device further comprises a data measurement controller (500), a data acquisition controller (600) and a power module (700); the data measurement controller (500) is connected to the weighing module (300), and the data acquisition controller (600) is connected to the data measurement controller (500); the power module (700) simultaneously provides electric energy to the data measurement controller (500), the data acquisition controller (600) and the weighing module (300).

8. The snow water equivalent measuring device according to claim 7, characterized in that: The data measurement controller (500) is integrated into the weighing module (300); the snow water equivalent measurement device also includes a first fixed bracket (800), and the data acquisition controller (600) and the power module (700) are both installed on the first fixed bracket (800).

9. The snow water equivalent measuring device according to any one of claims 1 to 6, characterized in that: The snow depth measuring mechanism (900) comprises a snow depth sensor (910), a fixing (920) component (920), an oblique bracing tube (930), a transverse bracing tube (940), a steering ring (950), a fixing ring (960) and a second fixing bracket (970); the snow depth sensor (910) is mounted on the fixing (920) component, the fixing (920) component is mounted on the steering ring (950), the steering ring (950) is rotatably sleeved outside the second fixing bracket (970), and the second fixing bracket (970) is used to support the ground; the oblique bracing tube (930) is connected to the fixing (920) component and the transverse bracing tube (940) at the same time, and the transverse bracing tube (940) is rotatably sleeved outside the second fixing bracket (970); the snow depth sensor (910) is used to obtain the depth of snow on the weighing snowboard (100).

10. A snow water equivalent measurement method, characterized in that: The snow water equivalent measuring device applied to any one of claims 1 to 9 comprises the following steps: The support frame (400) is fixed (920) on a flat ground, the boundary snow plate (200) and the weighing module (300) are fixed (920) on the support frame (400) and arranged horizontally, and the weighing snow plate (100) is installed on the weighing module (300); the snow depth measuring mechanism (900) is installed on the outer side of the boundary snow plate (200) at a predetermined height; According to the formula SWE = ρ s ×h s , s =m s / V s and V s =S×h s Derived SWE = m s / S, where m s is the weight of the snow layer on the weighing snowboard (100) obtained by the weighing module (300), ρ s is the average density of the snow layer, S is the area of ​​the weighing snowboard (100) in contact with the snow, and h s is the snow depth measured by the snow depth measuring mechanism (900), V s is the volume of snow on the snow pack (100) and SWE is the snow water equivalent.

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