Layered sampling apparatus and method for ice cover

Abstract

The invention relates to a layered sampling apparatus and method for an ice cover. The layered sampling apparatus comprises a sampling part and a force applying part. The sampling part comprises at least one ice body sampling box which comprises an ice storage box with hollow interior and an ice guiding groove; an opening in the first end of the ice guiding groove is communicated with the ice storage box, another opening in the second end of the ice guiding groove is located at the outer side of the ice storage box, and the opening in the second end of the ice guiding groove is provided with ice breaking teeth protruding out from the ice guiding groove; the ice storage box is also provided with a rotation hole penetrating the ice storage box; the force applying part comprises a rotary rod which passes through the rotation hole and drives the ice body sampling box to rotate; the shape of the rotary rod matches with the shape of the rotation hole; and a locking block is arranged on the end part of the rotary rod. The layered sampling apparatus is easy to operate, convenient to use and small in size; moreover, the apparatus can be assembled on site, which facilitates transport of the apparatus.

Description

technical field [0001] The present invention relates to an ice sheet stratified sampling device and method, a hydrological observation device and method, a device and a method used in the field of ice sheet research, in particular to an ice sheet layered sampling device and the use of the The sampling method of the device. Background technique [0002] The ice phenomenon is a natural phenomenon unique to rivers in cold regions. It is common in the Yarlung Zangbo River, the source region of the Yangtze River, and the source region of the Yellow River in the cold region of the southwest plateau in my country. After winter, as the temperature drops, the river water body loses heat. When the water temperature drops below 0°C, the water body undergoes a phase change, and part of the water body turns into solid drift ice, floats on the water surface, and flows with the water flow. The generation, disappearance, development and evolution of river ice in cold regions are affected b...

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Problems solved by technology

Overseas research on pollutants in ice sheets mainly focuses on sea ice, especially the study of sea ice's salt-removal effect and its impact on marine environmental quality, but there is no literature on ice sheet layered sampling equipment

[0006] In terms of research and application of river water quality sampling equipment, traditional single-layer samplers, depth-type samplers, and closed-tube samplers, which are traditionally used for open flow, are obviously not suitable for ice layer sampling.

In addition, the fidelity sampler applied to the riverbed has successively developed the pressure-packed sampling cylinder (PCB), piston sampler (APC), pressure-packed corer (PCS), impact sampler (FPC) and rotary sampler ( HRC), thermal insulation and pressure sampler (PTCS), fidelity sampler designed by Zhejiang University, etc., mostly use gravity or vibration sampling, which is suitable for the transportation and use of relatively large-scale equipment, and the thickness of the inland river ice cover is selected Smaller than sea ice and polar ice, the above-mentioned equipment is not suitable for the current ice conditions of inland rivers, and the ice surface is in direct contact with the atmosphere, and does not need the function of maintaining pressure. Not suitable for layered sampling of field river ice sheets in plateau cold regions

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