Observation of wind-induced two-layer dynamics in Lake Nakaumi, a coastal lagoon in Japan
Observation of wind-induced two-layer dynamics in Lake Nakaumi, a coastal lagoon in Japan
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日本沿海泻湖中海湖风致两层动力学的观测
DOI：
10.1007/s102010170009
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发表时间：
2001
期刊：
影响因子：
1.6
通讯作者：
Yu Ishitobi
中科院分区：
文献类型：
--
作者：
T. Godo;Kenji Kato;H. Kamiya;Yu Ishitobi
利用设于湖中两点的海流和盐度计，观察到中umi湖两层水体对强风运动的响应，强风突然上升并以几乎恒定的速度和方向持续了15小时。在水运动的初始阶段，上层和下层的流速出现了较大的反向波动，并伴有两层之间的混合。在初始阶段之后的静止阶段，上层和下层的流速保持不变，盐度保持不变。认为水运动初期出现板型流动，加强了两层之间的混合，随着两层结构的设置完成，在静止阶段转变为稳定的循环流动。
A response in movement of a two-layered water body in Lake Nakaumi to a strong wind, which suddenly rose and continued for 15 h with nearly constant speed and direction, was observed using the current and salinity meters situated at two points in the lake. At the initial stage of water movement, large fluctuations in current velocity in reverse directions were observed in the upper and lower layers, accompanied by mixing between the two layers. At the stationary stage following the initial stage, current velocities in the upper and lower layers were kept constant, as was salinity. It was considered that a slab-type flow, which enhanced mixing between the two layers, occurred at the initial stage in water movement, then changed into a steady circulation flow at the stationary stage with completion of the set up in the two-layered structure.