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利用PSMSL全球海潮测量资料,分析了100多年以来全球海平面的年代际间变化特征,同时对区域变化特征进行了分析,得出全球海平面自30世纪70年代以来持续上升,全球海平面上升的区域变化特征明显,特别是最近30 a以来区域海平面变率增大。海平面变化的这种趋势和全球地面温度变化趋势相似。对几个有着较长时间记录的潮汐站测量资料进行了分析,从更长的时间尺度上调查了海平面的长期变化趋势。对全球潮汐测量资料的长期变化趋势分析后,得出在过去一个世纪里全球海平面呈现一个整体上升的趋势,在北大西洋和太平洋西部,海平面出现了近40 mm/a的上升量。
Using the PSMSL global tide survey data, we analyzed the decadal variability of the global sea level over the past 100 years. At the same time, the characteristics of the regional variation were analyzed. The results show that the global sea level has risen continuously since the 1970s and the global sea level has risen The characteristics of regional variation are obvious, especially the regional sea level variability increases since the last 30 years. This trend of sea level change is similar to that of global ground temperature. A few tide stations surveyed over a long period of time were analyzed and long-term sea-level trends were investigated over a longer time scale. After analyzing the long-term trend of global tide survey data, it is concluded that the global sea level has shown an overall ascending trend over the past century. In the North Atlantic and the western Pacific, there is an ascent of nearly 40 mm / a at sea level.