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首页> 外文期刊>海洋調查技術 >Observation of water quality in a stratified enclosed sea by automatic ascending/descending water quality profiler
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Observation of water quality in a stratified enclosed sea by automatic ascending/descending water quality profiler

机译：用自动上升/下降水质分析仪观察分层封闭海中的水质

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摘要

We developed an automatic ascending/descending water quality profiler to continuously observe vertical profile of water quality in a semi-enclosed coastal region. This profiler can collect vertical profile of water quality according to present configuration by ascending/descending into seawater utilizing piston cylinder to change its buoyancy. From the end of July to the beginning of September in 2000, we deployed this profiler in the Kaita Bay, that is the most inner branch bay of the Hiroshima Bay of Japan, in order to collect profiles of water temperature, salinity, dissolved oxygen, chlorophyll-a, turbidity and depth at every twenty minutes. As a result, this profiler could catch over-saturated dissolved oxygen in the surface layer due to red tide, and vertical vairation of stratification and chlorophyll-a caused by sea-land breeze. In addition, during the field experiment, a problem occurred with ascending/descending action due to sag of the mooring system, which should be improved in future.
机译：我们开发了自动上升/下降水质剖面仪，以连续观察半封闭沿海地区水质的垂直剖面。该轮廓仪可以通过利用活塞缸改变其浮力而上升/下降到海水中来根据当前配置收集水质的垂直轮廓。从2000年7月底到9月初，我们在日本广岛湾最内层的分支湾田湾（Kaita Bay）部署了该剖面仪，以便收集水温，盐度，溶解氧，每二十分钟的叶绿素a，浊度和深度。结果，该剖面仪可能会由于赤潮以及海风引起的分层和叶绿素a的垂直变化而在表层捕获过饱和的溶解氧。另外，在野外实验中，由于系泊系统的下垂而导致上升/下降动作出现问题，这在将来应加以改进。

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