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根据东亚沿岸45个水位观测站的长序列水位资料,用不同的计算区域平均海平面升降的方法,估计了该区海平面升降趋势。结果表明,从本世纪50年代初至90年代初,整个海区平均而言海平面呈上升趋势。海平面升降的区域性变化较大:中国沿岸除山东半岛外,其他海区平均是上升的,在日本群岛南部和朝鲜半岛南部沿岸,由几种方法得出的结果多数是上升的,但上升幅度很小。本文对东亚沿岸海平面升降的估计结果与Barnett的相应估计差别较大,其主要原因是Barnett选站较少,且选的站集中在该区南北两端,中间部分无资料;估计方法虽有影响,但属次要的。
According to the long series of water level data of 45 water level observation stations along East Asia coast, the sea level rise and fall tendency of the area is estimated by different methods of calculating sea level average sea level rise and fall. The results show that, from the early 1950s to the early 1990s, the average sea level of the entire sea area is on the rise. The regional variation of sea level rise and fall is larger: except for the Shandong Peninsula, the coasts of other parts of the country rise more on average. The results obtained by several methods are mostly on the southern coast of Japan and the southern coast of Korean Peninsula, but the increase rate Very small. In this paper, the estimates of sea level rise and fall of the East Asian coast differ greatly from the corresponding estimates of Barnett. The main reason for this is that there are fewer stations in Barnett, and the selected stations are concentrated on the north and south ends of the area with no data in the middle. Impact, but secondary.