Spreading of river water in Suruga Bay
Spreading of river water in Suruga Bay
复制标题
骏河湾河水扩散
DOI：
10.1007/s10872-009-0016-x
复制
发表时间：
2009
影响因子：
2.3
通讯作者：
K. Ishigami
中科院分区：
文献类型：
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作者：
Kiyoshi Tanaka;Y. Michida;T. Komatsu;K. Ishigami
我们通过数值试验和漂流浮标实地调查，研究了苏鲁加湾河水的扩散情况。流入海湾的大河流量有明显的季节变化：夏季多雨季节流量增加，冬季干旱季节流量减少。数值模式再现了在实际海洋中观察到的主要特征：河水从海湾的西北部逐渐延伸到东南部，特别是在夏季。河水扩散受海湾底部地形的影响很大：富士河水以表面平流羽流的形式在大陆深斜坡上扩散，并在近海很好地延伸，因为一个大的凸起(河口反气旋涡流)在近海很好地延伸，并有效地将河水输送到近海。另一方面，Oi河水倾向于在浅海大陆架上以底部平流羽流的形式平行于等深线(沿海岸线)流动。此外，还研究了层结和海湾尺度风生环流的季节变化的影响。在富士河河口周围释放的漂流浮标的轨迹肯定表明那里存在凸起。
We have investigated the spreading of river water in Suruga Bay by performing numerical experiments and conducting field surveys with drifting buoys. There are clear seasonal variations in the large river discharges into the bay: increased discharge in the rainy summer season and decreased discharge in the dry winter season. The numerical model reproduces the main feature that has been observed in the actual sea: the river water extends gradually from the northwestern to the southeastern regions in the bay, especially in summer. The river water spreading is greatly influenced by the bottom topography of the bay: the Fuji River water spreads over a deep continental slope as a surface-advected plume and extends well offshore, since a large bulge (anticyclonic eddy at the river mouth) extends well offshore and effectively transports the river water offshore. On the other hand, the Oi River water tends to flow parallel to isobaths (along a coastline) on a shallow continental shelf as a bottomadvected plume. Moreover, the influences of seasonal variations in the stratification and a bay-scale, wind-driven circulation are also investigated. Trajectories of the drifting buoys, which were released around the Fuji River mouth, certainly suggest that the bulge exists there.
骏河湾风力环流及相关输送过程的数值实验
DOI：
--
发表时间：
2008
期刊：
Journal of Oceanography 64
影响因子：
--
作者：
Tanaka K.;Y.Michida;T.Komatsu
通讯作者：
T.Komatsu