Trends of sea level rise in the South China Sea during the 1990s: An altimetry result
Trends of sea level rise in the South China Sea during the 1990s: An altimetry result
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DOI：
10.1360/02tb9134
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发表时间：
2002-04
影响因子：
--
通讯作者：
Li Li-Li;Xu Jindian;Cai Rongshuo
中科院分区：
文献类型：
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作者：
Li Li-Li;Xu Jindian;Cai Rongshuo
利用7年TOPEX/POSEIDON卫星测高资料，确定了1993年1月至1999年12月间南中国海平面上升的总体趋势。整个海盆的总体上升速率估计为∼1厘米/年。海平面的上升在空间上似乎是不均匀的，吕宋以西的深海盆最高，为2.7厘米/年，而浅层大陆架的上升速度普遍较低(甚至为负)。分析认为，观测到的海平面快速上升是一种区域性现象，其主要原因是南海中国上层增暖，同期海平面整体增暖速率为0.15℃/a。观测到的上升趋势主要是年代际信号，这可能与太平洋暖池区的年代际变化有关。
Using 7 years of TOPEX/POSEIDON satellite altimetry data, we have identified a general trend of sea level rising in the South China Sea between January 1993 and December 1999. The estimated bulk rising rate of the entire basin is ∼1 cm/a. The rise of sea level appears to be spatially non-homogeneous, which shows a highest rate of 2.7 cm/a in the deep basin west of Luzon and generally low (even negative) rates over the shallow continental shelves. It is believed that the observed rapid rising of sea level is a regional phenomenon and is mainly caused by warming of the upper layer of the South China Sea, which showed a bulk warming rate of 0.15 °C/a in the same period. It is also suggested that the observed rising trend is mainly a decadal signal, which is possibly associated with decadal variation of the Pacific warm pool region.