Laboratory study on parameterization of ice floe melt rate at ice-air and ice-water interfaces

Li Zhijun; Wang Zhiqun; Wang Qingkai; Xie Fei; Lu Peng

doi:10.12284/hyxb2021115

Volume 43 Issue 7

Jul. 2021

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Li Zhijun，Wang Zhiqun，Wang Qingkai, et al. Laboratory study on parameterization of ice floe melt rate at ice-air and ice-water interfaces[J]. Haiyang Xuebao，2021, 43(7)：162–172 doi: 10.12284/hyxb2021115

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Laboratory study on parameterization of ice floe melt rate at ice-air and ice-water interfaces

doi: 10.12284/hyxb2021115

State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China

Received Date: 2021-02-19
Rev Recd Date: 2021-04-03

Available Online: 2021-05-27

Publish Date: 2021-07-25

Abstract

Abstract

During the ice melting season, the surface, bottom and lateral melting of natural ice floes coexist, and the melting rate of the three is that the melting rate of the bottom is greater than the lateral, and the lateral is greater than the surface. And the smaller the ice floe size, the higher the proportion of lateral velocity. In order to solve the problem of including the small-scale ice floe scale indicators into the melting parameterization plan, in the low-temperature environment laboratory without radiation, no flow rate, controlled air temperature and water temperature, the disk samples of natural sea ice and artificially frozen fresh water ice were carried out. Experiments on the melting process of disc samples with different initial water temperatures and different initial diameters were carried out. Obtain the disc sample diameter, thickness and mass melting process. Based on these experimental data, a new indicator of sample diameter-to-thickness ratio was constructed. Through physical analysis and mathematical statistics, the melting rate of the surface and bottom surface of the sea ice and freshwater ice sample was established with the temperature gradient, the lateral melting rate, temperature difference, and diameter. The relationship between the thickness ratio. These relationships can be applied to the melting parameterization scheme of floating ice within a natural diameter range of 100 m. It is expected to solve the demand for numerical simulation of the energy and mass balance of the summer melting season of Arctic sea ice and coastal freshwater ice at the sea estuary.
- Arctic sea ice,
- lateral melting,
- parameterization,
- laboratory study

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References

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