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Analysis of mean velocity and turbulence measurements with ADCPs

机译：使用ADCP分析平均速度和湍流

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The present study examines the vertical structure of the coastal current in the inner part of the Gulf of Taranto, located in the Ionian Sea (Southern Italy), including both the Mar Grande and Mar Piccolo basins. To this aim, different measuring stations investigated by both a Vessel Mounted Acoustic Doppler Current Profiler (VM-ADCP) and a bottom fixed ADCP were taken into consideration. Two surveys were carried out in the target area on 29.12.2006 and on 11.06.2007 by the research unit of the Technical University of Bari (DICATECh Department), using a VM-ADCP to acquire the three velocity components along the water column in selected stationing points. The measurements were taken in shallow waters, under non-breaking wave conditions, offshore the surf zone. Due to the recording frequency of the instrument time-averaged vertical velocity profiles could be evaluated in these measuring stations. Water temperature and salinity were also measured at the same time and locations by means of a CTD recorder. A rigidly mounted ADCP, located on the seabed in the North-Eastern area of the Mar Grande basin, provided current data relative to the period 10-20 February 2014. Set to acquire the three velocity components with higher frequency with respect to the VM-ADCP, it allowed us to estimate the turbulent quantities such as Reynolds stresses and turbulent kinetic energy by means of the variance method.
机译：本研究调查了位于爱奥尼亚海（意大利南部）的塔兰托湾内部的沿海水流的垂直结构，包括马尔格兰德盆地和马尔·皮克洛盆地。为此，考虑了通过船载声多普勒电流剖面仪（VM-ADCP）和底部固定ADCP研究的不同测量站。巴里技术大学研究部（DICATECh系）于2006年12月29日和2007年6月11日在目标区域进行了两次调查，使用VM-ADCP采集了所选水域沿水柱的三个速度分量驻点。这些测量是在冲浪区近海的不破浪条件下的浅水区进行的。由于仪器的记录频率，可以在这些测量站中评估时间平均垂直速度曲线。还通过CTD记录仪同时测量水温和盐度。刚性安装的ADCP位于马格朗德盆地东北部海床上，提供了有关2014年2月10日至20日期间的当前数据。该数据集将获取相对于VM-频率更高的三个速度分量ADCP，它使我们能够通过方差法估算湍流量，例如雷诺应力和湍动能。

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