Abstract

The seasonal and long-term variability of sea ice concentration in the Chukchi Sea in 1997–2016 was analyzed using all available satellite data on sea ice conditions. It is shown that the zone of maximum variability is situated in the areas with the ice concentration equal to (4–6)/10 and follows the displacements of this area: it moves to the north in the first half of the warm season (June–November) and moves back to the south in the second half of the period. The analysis of spectral components for the first three empirical orthogonal functions of sea ice concentration revealed quasiperiodic components with the periods of about 2–4 and 6–8 years.

中文翻译：

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楚科奇海冰浓度的时空格局

摘要

使用所有可用的关于海冰状况的卫星数据，对1997-2016年楚科奇海中海冰浓度的季节性和长期变化进行了分析。结果表明，最大变化区位于冰浓度等于（4–6）/ 10的区域，并随该区域的位移而变化：在温暖季节的上半年（6月）它向北移动。 – 11月），并在此期间的后半部分移回南部。对海冰浓度的前三个经验正交函数的频谱分量的分析显示，准周期分量的周期约为2-4年和6-8年。