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大西洋亚极区是北冰洋和大西洋物质能量交换的通道,在全球变化中有重要地位。本文主要研究了大西洋亚极区的海平面变化趋势,对51个验潮站水位数据采用了经验模态分解方法、灰色系统方法、以及随机动态方法3种方法做分析,并对海平面变化趋势做了对比。总结了大西洋亚极区的海平面变化趋势:整个海域内海平面变化不一致,西欧地区海平面总体呈现上升趋势,上升速率平均为0.108cm/a;北欧地区海平面总体呈现下降趋势,下降速率平均为-0.211cm/a。
The Atlantic sub-polar region is the passage for the exchange of material energy between the Arctic Ocean and the Atlantic Ocean and plays an important role in global change. This paper mainly studies the sea level change trend of the Atlantic sub-polar region. Empirical mode decomposition method, gray system method and stochastic dynamic method are used to analyze the water level data of 51 tide gauge stations. The sea level change trend Made a contrast. The sea level changes in the Atlantic sub-region are summarized. The variation of the sea level in the whole sea area is inconsistent. The sea level in Western Europe shows an overall upward trend with an average rising rate of 0.108cm / a. The sea level in the Nordic region shows a decreasing trend with an average of -0.211 cm / a.