Indoor simulation system for sea ice freezing and thawing process experiment

Abstract

The invention provides an indoor simulation system for a sea ice freezing and thawing process experiment and relates to a device capable of simulating the forming and thawing processes of sea ice on the surface layer of an ocean in the natural environment in a laboratory. The indoor simulation system for the sea ice freezing and thawing process experiment is provided with a refrigerator, a semiconductor refrigerating device, a water storage tank, sampling ports, heat preservation layers and temperature probes; an air-cooling refrigerator is adopted to serve as the refrigerator, and a hole is formed in the top of the refrigerator; the upper portion of the water storage tank used for containing sea water is provided with an opening and an upper cover; the semiconductor refrigerating device is embedded in a top plate of the water storage tank, and a refrigerating piece of the semiconductor refrigerating device directly makes contact with air in the water storage tank; the periphery and bottom of a tank body of the water storage tank are wrapped with the heat preservation layers correspondingly so that sea ice can be prevented from being formed on the periphery and bottom of the tank body of the water storage tank; the sampling ports are formed in the side face of the tank body of the water storage tank and used for sampling air samples and water samples, and the sampling ports are sealed through water seal clamps; a drainage hole is formed in the bottom of the tank body of the water storage tank, and the drainage hole is externally connected with a vacuum bag; and the temperature probes are arranged on the periphery and bottom of the tank body of the water storage tank, and a balloon arranged on the upper portion of the tank body of the water storage tank communicates with the outside of the tank body of the water storage tank.

Description

technical field [0001] The invention relates to a device capable of simulating the formation and melting process of ocean surface sea ice in the natural environment in the laboratory, and in particular relates to the simulation observation and research of the biochemical components in seawater and upper atmosphere in the process of sea ice freezing and thawing in the laboratory. Migration behavior. Background technique [0002] Polar regions play an extremely important role in global change. It is a climate change signal amplifier, indicating global change processes (Holland et al, 2003). The natural processes of large-scale sea ice formation and melting are uniquely important features of the polar oceans and play an important role in global biogeochemical cycles, especially in marine nutrients, trace metals, inorganic carbon, and environmentally important Gases (such as dimethylsulfide (DMS), nitrous oxide (N 2 O), methane (CH 4 )) plays an important role in the cycle (...

AI Technical Summary

Problems solved by technology

However, the harsh natural environment in the polar regions makes it difficult to conduct long-term field observations there. The simulation study of the freezing and thawing process of polar sea ice in the laboratory will undoubtedly have important reference significance for us to understand the polar marine environment

Although there have been a few studies simulating the formation and melting of sea ice in the laboratory (Papadimitriou et al., 2004; Li Zhijun et al., 2008), since these studies mainly focused on the chemical composition of sea ice and water, the The simulation systems are all non-closed systems, which are not suitable for the study of the composition of the atmosphere in the upper ocean

In addition, their simulation experiments are all carried out in large cryogenic laboratories, which are expensive and difficult to popularize and apply.

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