Abstract
During the 36th Antarctic Scientific Expedition in China, 7 large-scale long-term series of field observations of sea ice and snow thickness were carried out in Nella Fjord, Antarctica, and a large amount of measured data was obtained. The spatial and temporal distribution characteristics of sea ice and snow thickness are obtained by means of spatial analysis and statistical analysis. Through analysis, it is found that under the influence of the strong albedo of snow, a large thickness of multi-year ice is formed in the small fjord on the west side of Nella Fjord. Under the influence of sea water heat, the growth of sea ice has obvious spatial inconsistency, and the thickness of coastal sea ice is slightly greater than the thickness of sea ice in the center of the fjord. The sea ice thickness has been increasing continuously since the freezing and reached the maximum in late November. The spatial consistency of sea ice thickness is the worst in the early stage of freezing, and gradually gets better with the increase of sea ice thickness. In the melting stage, the spatial consistency turns into a worsening trend again. There is no obvious change pattern in the thickness of snow cover in Nella Fjord. Snow thickness has little effect on the growth of sea ice, but has significant effect on slowing down the melting of sea ice.
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