The results of mass balance observations of the ice dome and measurements of the active layer thickness on the Fildes Peninsula, King George (Waterloo) Island, Western Antarctica are presented for the period of 2007 to 2019. The dynamics of the main meteorological parameters affecting the active layer thickness is determined. The numerical experiments based on the mathematical model are performed to determine the effects of various parameters on the active layer thickness. The calculated and measured values of the active layer thickness are compared. The thermal instability of permafrost in the study area in some years with high (above the means) summer air temperature is demonstrated. The climate cooling which started in the region in the recent years has increased the number of years with the positive ice mass balance. However, the positive ice mass balance has not yet become a dominant factor against a background of the negative balance in the previous years.

中文翻译：

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21世纪南极半岛的冰川和多年冻土动力学

给出了2007年至2019年期间南极西部乔治王（滑铁卢）岛菲尔德斯半岛的冰穹质量平衡观测结果和活动层厚度的测量结果。影响该区域的主要气象参数的动态变化确定有源层的厚度。进行基于数学模型的数值实验以确定各种参数对有源层厚度的影响。比较活性层厚度的计算值和测量值。证明了研究区域多年冻土在夏季空气温度较高（高于平均值）时的热不稳定性。近年来，该地区开始的气候降温增加了冰量平衡的年数。然而，