Current Patterns in the Inner Sound (Pentland Firth) from Underway ADCP Data
Current Patterns in the Inner Sound (Pentland Firth) from Underway ADCP Data
复制标题
来自正在进行的 ADCP 数据的内部声音（彭特兰湾）的当前模式
DOI：
10.1175/jtech-d-11-00223.1
复制
发表时间：
2013
影响因子：
2.2
通讯作者：
Matthew Easton
中科院分区：
文献类型：
--
作者：
L. Goddijn;D. Woolf;Matthew Easton
在彭特兰湾的内海峡进行了大量声学多普勒海流剖面仪 (ADCP) 调查，彭特兰湾是奥克尼群岛和苏格兰北海岸之间的一条海峡，西边连接大西洋，东边连接北海。彭特兰湾拥有不列颠群岛最高的潮汐流，也是全球最高的潮汐流之一。在这里，潮汐能产业正处于示范阶段，但公共领域的实际水流测量结果并不多。作者提供了使用安装在船上的 ADCP 在潮汐周期的不同阶段测量的真实海流数据。潮汐变化可能很快，并且由于正在进行的测量需要时间，因此明显的空间模式会受到时间变化的影响。描述了一种使用流体动力学模型来估计和校正这种时间失真的方法。看来潮汐流和洪水流并没有完全重叠，而且潮汐流比现有模型所显示的更加复杂、湍流和多变。对数据进行了分析，了解与实际潮汐流能源开发相关的特征，并确定了内声区的两个有利地点。所有原始当前数据均可从英国海洋数据中心 (BODC) 获取。
Numerous acoustic Doppler current profiler (ADCP) surveys were performed in the Inner Sound of the Pentland Firth, a channel between the Orkney Islands and the northern coast of Scotland connecting the Atlantic Ocean to the west and the North Sea to the east. The Pentland Firth has the highest tidal streams of theBritishIsles,andoneofthehighestthatcanbefoundaroundtheglobe.Here,thetidalenergyindustryisin its demonstration phase, but not many real current measurements are in the public domain. The authors present real current data, measured during different phases of the tidal cycle, using a vessel-mounted ADCP. The tidal changes can be rapid, and because the underway measurements take time, the apparent spatial patternsare affectedby temporal variation. A method is describedthat estimatedand correctedthis temporal distortion using a hydrodynamic model. It appeared that ebb and flood streams did not fully overlap, and that the tidal streams were more complicated, turbulent, and variable than existing models suggest. The data were analyzed for characteristics pertinent to practical tidal stream energy exploitation, and two favorable sites in the Inner Sound are identified. All original current data are available from the British Oceanographic Data Centre (BODC).