A study of long-term sea level variability in the East China Sea
A study of long-term sea level variability in the East China Sea
复制标题
东海海平面长期变化研究
DOI：
10.1007/s13131-015-0754-0
复制
发表时间：
2015-11
影响因子：
1.4
通讯作者：
ZHU Benlu
中科院分区：
文献类型：
--
作者：
XU Ying;LIN Mingsen;ZHENG Quanan;YE Xiaomin;LI Junyi;ZHU Benlu
通过卫星高度计海平面异常图（MSLA）数据、潮汐计海平面数据和历史海平面数据的分析，研究了东海海平面的长期变化。基于相关性分析，我们计算潮汐计与最近的MSLA网格点之间的相关系数，然后生成整个ECS的相关系数图。结果表明，卫星高度计MSLA数据对于观测沿海海平面变化是有效的。一个重要的发现是，从相关系数图中我们可以识别黑潮。黑潮的存在降低了沿海海平面与太平洋海平面之间的相关性。黑潮喜欢一道屏障或一堵墙，阻挡太平洋和全球变化的影响。此外，东海沿海海平面主要与局部系统有关，而不是与全球变化有关。为了计算长期海平面变化趋势，采用经验模态分解（EMD）方法推导整个ECS中每个MSLA网格点的趋势。从趋势和上升速率的二维分布来看，黑潮轴右侧海平面上升速度快于左侧。这一结果支持了 ECS 中黑潮的屏障效应。 1993年至2010年间，整个东海地区平均海平面上升了45.0毫米，上升速度为(2.5±0.4)毫米/年，低于全球平均水平。相对较慢的海平面上升速度进一步证明，东海地区海平面上升由于其自身的局部系统效应，对全球变化的响应较小。
From the analyses of the satellite altimeter Maps of Sea Level Anomaly (MSLA) data, tidal gauge sea level data and historical sea level data, this paper investigates the long-term sea level variability in the East China Sea (ECS). Based on the correlation analysis, we calculate the correlation coefficient between tidal gauge and the closest MSLA grid point, then generate the map of correlation coefficient of the entire ECS. The results show that the satellite altimeter MSLA data is effective to observe coastal sea level variability. An important finding is that from map of correlation coefficient we can identify the Kuroshio. The existence of Kuroshio decreases the correlation between coastal and the Pacific sea level. Kurishio likes a barrier or a wall, which blocks the effect of the Pacific and the global change. Moreover, coastal sea level in the ECS is mainly associated with local systems rather than global change. In order to calculate the long-term sea level variability trend, the empirical mode decomposition (EMD) method is applied to derive the trend on each MSLA grid point in the entire ECS. According to the 2-D distribution of the trend and rising rate, the sea level on the right side of the axis of Kuroshio rise faster than in its left side. This result supports the barrier effect of Kuroshio in the ECS. For the entire ECS, the average sea level rose 45.0 mm between 1993 and 2010, with a rising rate of (2.5±0.4) mm/a which is slower than global average. The relatively slower sea level rising rate further proves that sea level rise in the ECS has less response to global change due to its own local system effect.
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影响因子：
3.6
作者：
Carton, JA;Giese, BS;Grodsky, SA
通讯作者：
Grodsky, SA
影响因子：
1.6
作者：
J. Zuo;Yiqiu Yang;Jianli Zhang;Meixiang Chen;Qing Xu
通讯作者：
J. Zuo;Yiqiu Yang;Jianli Zhang;Meixiang Chen;Qing Xu
影响因子：
2.8
作者：
S. Mangiarotti
通讯作者：
S. Mangiarotti
影响因子：
18.3
作者：
Syvitski, James P. M.;Kettner, Albert J.;Nicholls, Robert J.
通讯作者：
Nicholls, Robert J.
DOI：
10.2112/jcoastres-11a-00024.1
发表时间：
2012-03
期刊：
--
影响因子：
--
作者：
F. Baart;M. van Koningsveld;M. Stive
通讯作者：
F. Baart;M. van Koningsveld;M. Stive