Vertical displacement loading tides and self-attraction and loading tides in the Bohai, Yellow, and East China Seas
Vertical displacement loading tides and self-attraction and loading tides in the Bohai, Yellow, and East China Seas
复制标题
DOI：
10.1007/s11430-012-4518-9
复制
发表时间：
2013
影响因子：
5.7
通讯作者：
Fang Guo-hong;Xu Xiaoqing;Wei Ze-xun;W. Yonggang;Wang Xinyi
中科院分区：
文献类型：
--
作者：
Fang Guo-hong;Xu Xiaoqing;Wei Ze-xun;W. Yonggang;Wang Xinyi
利用高分辨率区域海潮模型、TOPO7.0全球海潮模型和Gutenberg-Bullen A地球模型，采用格林函数法计算了海潮载荷。结果表明，渤海、黄海和东中国海域M2垂直位移负荷最大值出现在距浙江海岸150公里处，其次是仁川湾，第二大值超过20 mm，第三大值超过14 mm，位于北黄海东北部。S2VDL潮汐在上述三个位置的最大振幅分别超过10、8和4 mm。K1和O1VDL潮汐的最大波幅分别超过13 mm和10 mm，出现在琉球群岛中部和北部附近，波幅有向内侧减弱的趋势。VDL半日潮的位相与相应的大洋潮位相基本相反。在东中国海大部和南黄海东部，VDL日潮位相与相应的大洋潮位相基本相反。这种反位相关系在渤海和黄海的其余部分一般不成立。自吸引加负荷(SAL)潮与VDL潮的分布模式非常相似。SAL潮的幅度约为VDL潮的1.2-1.7倍，其位相与VDL潮基本相反。M2SAL潮的最大幅度也出现在浙江沿海，震级超过42 mm。
The loading tides are calculated by means of the Green’s function method based on a high-resolution regional ocean tide model, the TOPO7.0 global ocean tide model, and the Gutenberg-Bullen A Earth model. The results show that the maximal amplitude of M2vertical displacement loading (VDL) tide in the Bohai, Yellow, and East China Seas exceeding 28 mm appears 150 km off the Zhejiang coast; the second maximum exceeding 20 mm appears in Inchon Bay; and the third maximum exceeding 14 mm is located in the northeast of the North Yellow Sea. The maximal amplitudes of S2VDL tide at the above three locations exceed 10, 8, and 4 mm, respectively. The maximal amplitudes of the K1and O1VDL tides, exceeding 13 and 10 mm respectively, appear near the central and north Ryukyu Islands; the amplitudes tend to decease toward the inward areas. The phases of semidiurnal VDL tides are basically opposite to those of corresponding ocean tides. The phases of diurnal VDL tides are basically opposite to those of corresponding ocean tides in the most part of the East China Sea and the eastern part of the South Yellow Sea. This anti-phase relationship generally does not hold in the rest parts of the Bohai and Yellow Seas. The distribution patterns of self-attraction and loading (SAL) tides are very similar to those of VDL tides. The SAL tides have amplitudes about 1.2–1.7 times of the corresponding VDL tides and their phases are basically opposite to the corresponding VDL tides. The maximal amplitude of M2SAL tide also appears off the Zhejiang coast, with a magnitude exceeding 42 mm.